CN203552584U - Low-temperature-difference magnetic Stirling engine model - Google Patents
Low-temperature-difference magnetic Stirling engine model Download PDFInfo
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- CN203552584U CN203552584U CN201320689352.3U CN201320689352U CN203552584U CN 203552584 U CN203552584 U CN 203552584U CN 201320689352 U CN201320689352 U CN 201320689352U CN 203552584 U CN203552584 U CN 203552584U
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Abstract
The utility model discloses a low-temperature-difference magnetic Stirling engine model which comprises a heat cylinder, a gas moving piston, two magnets, a power cylinder, a power piston, a flywheel pillar, a flywheel shaft, a flywheel, a crank shaft and a connecting rod. At the center of the gas moving piston, the magnet is arranged in the heat cylinder; the power cylinder is assembled at the central position of the upper end surface of the heat cylinder; the two cylinders are internally communicated; the central position of the lower end of the power piston in the power cylinder includes the magnet, the upper end of the power piston includes a shaft hole, and the end with the shaft hole is connected with the lower end of the connecting rod via a rotating shaft; the upper end of the connecting rod is connected to the crank shaft which is not positioned at the circular center of the flywheel; the center of the flywheel is fixed to one end of the flywheel shaft, and the other end of the flywheel shaft is assembled in a shaft-side through hole at the upper end of the flywheel pillar to realize rotation; and the lower end surface of the flywheel is fixed at the upper end surface of the heat cylinder and is parallel with the power cylinder. The low-temperature-difference magnetic Stirling engine model is characterized in that movement of a gas moving shaft and the connecting rod is replaced via a magnetic force technology, transmission via the single connecting rod reduces problems of mechanical friction resistance and mechanical sealing, and the model can be used for scientific inspiration, teaching experiments and teaching demonstrations.
Description
Technical field
The utility model relates to a kind of teaching mode, is specifically related to a kind of Low Temperature Difference magnetic and connects Stirling engine model.
Background technology
Stirling engine produces power by when gases are heated, they expand, meet cold compression.This is a kind of external-burning engine, and fuel is burnt continuously, and the expansion hydrogen (or helium) of evaporation makes piston movement as power gas, and expanding gas is cooling at cold air chamber, carries out repeatedly such cyclic process.This process is called again Stirling circulation, is enclosed, adopts the gas circulating of absorbing heat under constant volume.Cyclic process is: 1. constant temperature compression process; 2. constant volume endothermic process; 3. constant temperature expansion process; 4. constant volume exothermic process, completes a circulation.Under the condition of ideal heat absorption, the thermal efficiency of this circulation, equals the Carnot cycle that temperature bound is identical.Engine uses hydrogen as working medium, is filled with the working medium of a constant volume in the cylinder of sealing.Wei Re chamber, cylinder one end, the other end is cold chamber.Working medium is compressed in low temperature cold chamber, then flows to heating rapidly in high warm chamber, the acting of expanding.Continuous burning in the firing chamber of fuel outside cylinder, passes to working medium by well heater, and working medium is not participated in burning directly, does not change yet.Because this circulation is enclosed circulation, can adopt the working medium of good heat-transfer, meanwhile, the corrosivity of working medium is power very also, as gases such as nitrogen, hydrogen.The gas working medium being filled with, all right heated pressure, depending on the situation of closed system, can adopt heat far away in the gases at high pressure work of hot gas pressure, can improve like this power of the unit weight of engine, subtracts the volume and weight of power engine.
Stirling engine is divided into the form of single cylinder, twin-tub, four cylinders.Stirling engine is when operation, due to continuous burning in the firing chamber of fuel outside cylinder, the working medium that is independent of combustion gas is absorbed heat by well heater, and press Stirling circulation and externally do work, therefore avoid the quick-fried acting of shake and the intermittent combustion process of similar internal combustion engine, thereby realized efficient, low noise and low emission operation.
In teaching, about the principle of work of Stirling engine and the content of the course of work, be a very important part now always.But, there is no model, uninteresting word cannot excite the learning interest of students, is also difficult to the principle and the course of work that allow students get a real idea of steam engine, can not get the teaching efficiency of anticipation.
Summary of the invention
The utility model provides a kind of and demonstrates Stirling engine structure and principle of work Low Temperature Difference magnetic connects Stirling engine model to student in order to address the above problem.
The utility model is to address this problem taked technical scheme to be:
Low Temperature Difference magnetic of the present utility model connects Stirling engine model, comprises hot cylinder, moves gas piston, two magnet, actuating cylinder, power piston, flywheel pillar, flywheel shaft, flywheel, bent axle, connecting rod; Moving gas piston center has magnet to be placed in hot cylinder, center, hot cylinder upper surface assembling actuating cylinder, UNICOM in two cylinders, there is magnet center, power piston lower end in actuating cylinder, there is axis hole upper end, there is axis hole end to be connected in connecting rod lower end by rotating shaft, small end is connected on the bent axle of the non-circle centre position setting of flywheel, flywheel center is fixed on flywheel shaft one end, the other end by bearing assemble in flywheel pillar upper shaft side through hole, form and rotate, flywheel pillar lower surface is fixed on hot cylinder upper surface, and parallel with actuating cylinder.
The center, one end of power piston is provided with magnet, and the other end is provided with axis hole, and power piston has axis hole end to be connected with connecting rod by coupling shaft.
Flywheel shaft one end is passed from the center pit of flywheel, axial end is concordant fastening with the side of flywheel band bent axle, flywheel shaft forms rotation in flywheel pillar upper shaft side through hole by bearing assemble, flywheel pillar lower surface is fixed on hot cylinder upper surface, and flywheel pillar is parallel with actuating cylinder perpendicular to hot cylinder upper surface.
The upper surface of hot cylinder and lower surface are respectively arranged with hot cylinder upper surface and the hot cylinder lower surface of metal material.
Hot cylinder is transparent material, and two ends are fluted, puts O-ring seal in groove, and O-ring seal is being pressed by hot cylinder upper surface and hot cylinder lower surface, and is screwed.
Actuating cylinder is arranged on the centre of hot cylinder upper surface, with actuating cylinder web member, by O-ring seal sealing, is assembled perpendicular on hot cylinder upper surface, can directly load onto and take off.
Power piston and actuating cylinder form rectilinear motion, by mechanical precision, are sealed.
Move gas piston and power piston center is provided with magnet.
Move gas piston magnet the two poles of the earth and power piston magnet the two poles of the earth are provided with diacritics.
Between piston and flywheel with a connecting rod transmission campaign.
Advantage and the good effect that the utlity model has are:
Low Temperature Difference magnetic of the present utility model connects Stirling engine model, magnet interlock replaces moving gas the axis of the piston and moving the work of gas piston rod, with monotroded bar, is connected in flywheel, reduces area and the mechanical seal problem of mechanical friction, make the startup of model quicker, turn round more smooth and easy.Hot cylinder and actuating cylinder adopt transparent design, and principle of work and the course of work that can observe intuitively Stirling engine allow teenager be easier to understand and accept its principle of work, understand the effect that magnetic connects.This model is made lecture experiment and teaching grouping experiment for teaching, simple to operate, easily realizes.
Accompanying drawing explanation
Fig. 1 is that Low Temperature Difference magnetic of the present utility model connects Stirling engine model perspective view;
Fig. 2 is the structural representation that Low Temperature Difference magnetic of the present utility model connects Stirling engine model.
Critical piece symbol description in accompanying drawing:
1: hot cylinder 2: flywheel pillar
3: flywheel shaft 4: crank
5: flywheel 6: bent axle
7: connecting rod 8: actuating cylinder
9: hot cylinder upper surface 10: hot cylinder lower surface
11: screw 12: power piston
13: power piston magnet 14: move gas piston magnet
15: move gas piston
Embodiment
Referring to drawings and Examples, the utility model is described in detail, the utility model parts same as the prior art have been used identical symbol.
Fig. 1 is that Low Temperature Difference magnetic of the present utility model connects Stirling engine model perspective view; Fig. 2 is the structural representation that Low Temperature Difference magnetic of the present utility model connects Stirling engine model.As depicted in figs. 1 and 2, Low Temperature Difference magnetic of the present utility model connects Stirling engine model, comprises the hot cylinder 1 that is arranged on below, and with inner 1 actuating cylinder being communicated with 8 of hot cylinder.The upside of hot cylinder 1 and downside are respectively arranged with hot cylinder upper surface 9 and the hot cylinder lower surface 10 of metal material, hot cylinder upper surface 9 and hot cylinder lower surface 10 are circle, hot cylinder 1 two ends are fluted, in groove, put O-ring seal, O-ring seal is being pressed by hot cylinder upper surface and hot cylinder lower surface, and fixing with screw 11.Actuating cylinder 8 is arranged on the centre of hot cylinder upper surface 9, and actuating cylinder 8 is assemblied on hot cylinder upper surface 9 by O-ring seal sealing, can directly load onto and take off.
Moving gas piston 15 centers has magnet to be placed in hot cylinder 1, there is magnet power piston 12 centers, lower end in actuating cylinder 8, there is axis hole upper end, have axis hole end to be connected in connecting rod 7 lower ends by rotating shaft, connecting rod 7 upper ends are connected on the bent axle 6 of the non-circle centre position setting of flywheel 5, and flywheel 5 centers are fixed on flywheel shaft 3 one end, the other end by bearing assemble in flywheel pillar 2 upper shaft side through hole, form and rotate, flywheel pillar 2 lower surfaces are fixed on hot cylinder 1 upper surface, and parallel with actuating cylinder 8.
The center, one end of power piston 12 is provided with magnet, and the other end is provided with axis hole, and power piston 12 has axis hole end to be connected with connecting rod 7 by coupling shaft.
The upper section of hot cylinder 1 and lower section are fixed as hot cylinder upper surface 9 and hot cylinder lower surface 10 with screw by the metal disk that is greater than hot cylinder outer radius with the metal disk that is greater than hot cylinder external diameter respectively.
Power piston 12 forms rectilinear motion with actuating cylinder 8, by mechanical precision, is sealed.
Move gas piston and power piston center is provided with magnet.
Move gas piston magnet 13 the two poles of the earth and power piston magnet 14 the two poles of the earth are provided with diacritics.
Between piston and flywheel with a connecting rod transmission campaign.
Move gas piston 15 and made by the material of lightweight rub resistance, as sponge.
During use, only Low Temperature Difference magnetic of the present utility model need be connected to Stirling engine model is placed in palm, utilize the temperature difference between centre of the palm temperature and room temperature, after a few minutes, hot cylinder lower surface is heated, air expanded by heating propulsion power piston in cylinder, power piston turns round by link transmission flywheel, flywheel running makes power piston acting, power piston during to hot cylinder upper end the magnet on power piston with move the acting that attracts each other of magnet on gas piston, making to move gas piston moves upward, in hot cylinder, air is moved, the motion of flywheel running power piston, magnet power is opened, moving gas piston moves downward, thereby circular work motion.
The utility model replaces moving gas the axis of the piston and moving the work of gas piston rod with magnet interlock, with monotroded bar, is connected in flywheel, has reduced area and the mechanical seal problem of mechanical friction, makes the startup of model quicker, turns round more smooth and easy.Described hot cylinder and actuating cylinder adopt transparent design, and principle of work and the course of work that can observe intuitively Stirling engine allow teenager be easier to understand and accept its principle of work, understand the effect that magnetic connects.
Claims (10)
1. Low Temperature Difference magnetic connects a Stirling engine model, comprises hot cylinder (1), moves gas piston (15), two piston magnet, actuating cylinder (8), power piston (12), flywheel pillar (2), flywheel shaft (3), flywheel (5), bent axle (6), connecting rod (7), it is characterized in that: moving gas piston (15) center has magnet to be placed in hot cylinder (1), hot cylinder (1) center, upper surface assembling actuating cylinder (8), UNICOM in two cylinders, there is magnet power piston (12) center, lower end in actuating cylinder (8), there is axis hole upper end, there is axis hole end to be connected in connecting rod (7) lower end by rotating shaft, connecting rod (7) upper end is connected on the bent axle (6) of the non-circle centre position setting of flywheel (5), flywheel (5) center is fixed on flywheel shaft (3) one end, the other end by bearing assemble in flywheel pillar (2) upper shaft side through hole, form and rotate, flywheel pillar (2) lower surface is fixed on hot cylinder (1) upper surface, and parallel with actuating cylinder (8).
2. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: the center, one end of power piston (12) is provided with magnet, the other end is provided with axis hole, and power piston (12) has axis hole end to be connected with connecting rod (7) by coupling shaft.
3. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: flywheel shaft (3) one end is passed from the center pit of flywheel (5), axial end is concordant fastening with the side of flywheel band bent axle, flywheel shaft (3) forms rotation in flywheel pillar (2) upper shaft side through hole by bearing assemble, flywheel pillar (2) lower surface is fixed on hot cylinder upper surface, and flywheel pillar (2) is parallel with actuating cylinder (8) perpendicular to hot cylinder upper surface.
4. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: the upper section of hot cylinder (1) and lower section are fixed as hot cylinder upper surface (9) and hot cylinder lower surface (10) with screw by the metal disk that is greater than hot cylinder outer radius with the metal disk that is greater than hot cylinder external diameter respectively.
5. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: hot cylinder (1) is transparent material, two ends are fluted, in groove, put O-ring seal, O-ring seal is being pressed by hot cylinder upper surface and hot cylinder lower surface, and with screw (11), both ends of the surface sheet metal is fixing tight.
6. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: actuating cylinder (8) is arranged on the centre of hot cylinder upper surface (9), with actuating cylinder web member (8), by O-ring seal sealing, assembled perpendicular on hot cylinder upper surface, can directly load onto and take off.
7. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: power piston and actuating cylinder form rectilinear motion, by mechanical precision, are sealed.
8. Low Temperature Difference magnetic according to claim 7 connects Stirling engine model, it is characterized in that: move gas piston and power piston center is provided with magnet.
9. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: move gas piston magnet (13) the two poles of the earth and power piston magnet (14) the two poles of the earth are provided with diacritics.
10. Low Temperature Difference magnetic according to claim 1 connects Stirling engine model, it is characterized in that: between piston and flywheel with a connecting rod transmission campaign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689352.3U CN203552584U (en) | 2013-11-05 | 2013-11-05 | Low-temperature-difference magnetic Stirling engine model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689352.3U CN203552584U (en) | 2013-11-05 | 2013-11-05 | Low-temperature-difference magnetic Stirling engine model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552584U true CN203552584U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689352.3U Expired - Fee Related CN203552584U (en) | 2013-11-05 | 2013-11-05 | Low-temperature-difference magnetic Stirling engine model |
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| CN (1) | CN203552584U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454229A (en) * | 2014-10-13 | 2015-03-25 | 上海大学 | Cup cover with automatic rotary output function |
| CN104921550A (en) * | 2015-02-12 | 2015-09-23 | 宁波高新区夏远科技有限公司 | Cup |
| CN105915115A (en) * | 2016-06-06 | 2016-08-31 | 南京航空航天大学 | Rotary hammering-type moon-surface piezoelectric power generation device and work mode thereof |
| CN109488481A (en) * | 2018-12-19 | 2019-03-19 | 天津启星动力科技有限公司 | Stirling engine butterfly-type driving form |
-
2013
- 2013-11-05 CN CN201320689352.3U patent/CN203552584U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454229A (en) * | 2014-10-13 | 2015-03-25 | 上海大学 | Cup cover with automatic rotary output function |
| CN104921550A (en) * | 2015-02-12 | 2015-09-23 | 宁波高新区夏远科技有限公司 | Cup |
| CN107518730A (en) * | 2015-02-12 | 2017-12-29 | 宁波高新区夏远科技有限公司 | A kind of bottom sets the cup of Stirling engine |
| CN109744822A (en) * | 2015-02-12 | 2019-05-14 | 宁波高新区夏远科技有限公司 | The cup of Stirling engine is had on a kind of cup lid |
| CN109875340A (en) * | 2015-02-12 | 2019-06-14 | 宁波高新区夏远科技有限公司 | A kind of cup with support underneath type Stirling engine |
| CN109875341A (en) * | 2015-02-12 | 2019-06-14 | 宁波高新区夏远科技有限公司 | A kind of cup with eccentric orbit glding type Stirling engine |
| CN109875339A (en) * | 2015-02-12 | 2019-06-14 | 宁波高新区夏远科技有限公司 | A kind of cup convenient for controlling Stirling engine opening and closing thereon |
| CN109907614A (en) * | 2015-02-12 | 2019-06-21 | 宁波高新区夏远科技有限公司 | A kind of cup with Magnetic driving formula Stirling engine |
| CN105915115A (en) * | 2016-06-06 | 2016-08-31 | 南京航空航天大学 | Rotary hammering-type moon-surface piezoelectric power generation device and work mode thereof |
| CN109488481A (en) * | 2018-12-19 | 2019-03-19 | 天津启星动力科技有限公司 | Stirling engine butterfly-type driving form |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161105 |