CN104143285A - Planetary gear train simulation teaching tool - Google Patents
Planetary gear train simulation teaching tool Download PDFInfo
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- CN104143285A CN104143285A CN201410343596.5A CN201410343596A CN104143285A CN 104143285 A CN104143285 A CN 104143285A CN 201410343596 A CN201410343596 A CN 201410343596A CN 104143285 A CN104143285 A CN 104143285A
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- planetary gear
- gear train
- support abutment
- planetary
- gear
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Abstract
The invention discloses a planetary gear train simulation teaching tool, and relates to a teaching tool for simulating motion of a planetary gear train. The planetary gear train simulation teaching tool is provided with a planetary gear train simulation device, a center shaft which is rotationally arranged on a support and a rotating arm are arranged in the planetary gear train simulation device, sun gears with different numbers of teeth are fixedly arranged on the center shaft, the center shaft penetrates through a fixed gear which is fixedly arranged on the support, a plurality of planetary gear trains with different tooth number ratios are arranged on the rotating arm, planetary gears in different planetary gear trains and the sun gears on the center shaft are different in transmission ratio and used for demonstrating different motion effects, motion sensors and an information processor in the planetary gear train simulation device are arranged and used for processing motion information such as the rotation direction and the rotating speed of the center shaft and a planetary carrier and then displaying the motion information on a multimedia display screen, and meanwhile a simulation animation about the gear train motion state is showed. According to the planetary gear train simulation teaching tool, the self locking phenomenon and changes of the rotation direction of the planetary gear train of a 2K-H planetary gear train can be demonstrated, and the teaching effect is well improved.
Description
Technical field
The present invention relates to a kind of teaching aid of simulating planet circular system motion, be specially planet circular system simulation teaching aid.
Background technology
Planet circular system is a kind of typical cyclic train, is to be made up of planetary gear, planet carrier and sun gear.The forms of motion of planet circular system is just the same with solar motion, and when planet revolves around the sun, also in rotation, and the sun only does rotation.Planet circular system of a great variety, wherein 2K-H type planet circular system is very typical, the widely used planet circular system of a class.In 2K-H type planet circular system, along with the difference of the gear number of teeth, sometimes produce " locking phenomenon ", the rotation direction of train can change sometimes, just identical with sense of rotation as the planet revolution direction having in the solar system and have contrary.
In teaching at ordinary times, when the motion principle of classmates to this class planet circular system and planet circular system transmission, the rotation direction of gear reality has produced many doubt and has not understood, therefore, design and produce 2K-H planet circular system teaching aid, can be so that classmates learn, understand this train better in classroom.
Summary of the invention
Object of the present invention is just to provide a kind of teaching aid that can simulate the motion of 2K-H type planet circular system, to enrich the content of education, improves teaching efficiency.
For achieving the above object, technical scheme of the present invention is: planet circular system simulation teaching aid, be provided with a planet circular system analogue means, in this planet circular system analogue means, be provided with left support abutment and right support abutment, between left support abutment and right support abutment, be rotationally connected a central shaft, on central shaft, be installed with the sun gear of two different numbers of teeth, on left support abutment, be installed with a fixed gear, central shaft passes from this gear centre, on right support abutment, be rotationally connected a swivel arm being rotated by handle drives, on swivel arm, connect a bracing frame by back shaft, on bracing frame, be provided with multiple planetary wheel carriers around back shaft, on each planetary wheel carrier, be equipped with the planetary gear that a planet axis and two are individually fixed in planet axis two ends, planet axis is located on planetary wheel carrier and with planetary wheel carrier and is rotationally connected, two planetary gears on each planetary wheel carrier can engage with a sun gear that is installed in the fixed gear on left support abutment and be installed on central shaft respectively, two planetary gears on same planetary wheel carrier have the different numbers of teeth, and the planetary gear on different rows star wheel frame is different from the ratio of gear of the sun gear on central shaft, on described left support abutment and right support abutment, be respectively equipped with a motion sensor for measuring center axle and bracing frame rotation direction and rotating speed, the signal output part of motion sensor is connected to message handler, the data output end of message handler is connected with multimedia display screen.
Beneficial effect: the present invention can demonstrate out the locking phenomenon of 2K-H planet circular system and the situation of change of train rotation direction etc., and the kinematic parameter of 2K-H planet circular system and simulation animation are intuitively shown simultaneously, it has contained many-sided knowledge point in planet circular system teaching, promote well teaching efficiency, improved the present situation that lacks practical teaching aid in the teaching of 2K-H planet circular system.Teaching aid of the present invention is applicable to the various teaching occasionses such as multimedia, non-multimedia and laboratory, takes up room little, easy to carry, and each Element Design is simple, and easy to process, material is easy to get.
Brief description of the drawings
Fig. 1 is the structural representation of planet circular system analogue means of the present invention.
Fig. 2 is the wiring layout of planet circular system analogue means of the present invention.
In figure, be labeled as: 1, left support abutment, 2, right support abutment, 3, central shaft, 4, swivel arm, 5, back shaft, 6, planetary wheel carrier, 7, handle, 8, right axle sleeve, 9, left axle sleeve, 10, planet axis.
Embodiment
As depicted in figs. 1 and 2, planet circular system simulation teaching aid, be provided with a planet circular system analogue means, in this planet circular system analogue means, be provided with left support abutment 1 and right support abutment 2, left support abutment 1 and right support abutment 2 are fixed on base, between left support abutment 1 and right support abutment 2, be rotationally connected a central shaft 3, in left support abutment 1 and right support abutment 2, be respectively equipped with left axle sleeve 9 and right axle sleeve 8, central shaft 3 one end are passed from left axle sleeve 9 centers, the other end is arranged in right axle sleeve 8, right axle sleeve 8 is arranged in right support abutment 2 by bearing, left axle sleeve 9 is installed on left support abutment 1, on left axle sleeve 9, be installed with the gear of 39 teeth, central shaft 3 passes from this gear centre, on central shaft 3, connect two numbers of teeth by key and be respectively 37 and 41 sun gear.Be connected with swivel arm 4 in one end of right axle sleeve 8, the other end is connected with handle 7, swivel arm 4 and handle 7 link together by right axle sleeve 8, on swivel arm 4, connect a bracing frame by back shaft 5, on bracing frame, be provided with multiple planetary wheel carriers 6 around back shaft 5, one end of back shaft 5 is connected on swivel arm 4, and the other end is located in the bolt hole of bracing frame center setting, and fixes by nut.Planetary wheel carrier 6 can be set to three, what it was different length stretches out handle, each planetary gear that is equipped with a planet axis 10 and two on handle and is individually fixed in planet axis 10 two ends that stretches out, form a planetary gear set, planet axis 10 is located on planetary wheel carrier 6 and with planetary wheel carrier 6 and is rotationally connected, two planetary gears in each planetary gear set have different number of teeth proportionings, wherein, the planetary gear number of teeth proportioning of three planetary gear set is 18 tooth-16 teeth, 14 tooth-16 teeth, 41 tooth-39 teeth, three planetary gear set respectively with central shaft 3 on two gears of 39 tooth-41 tooth, 39 two, tooth-37 tooth gears, 39 two, tooth-41 tooth gear engagements, the planetary gear set of three different number of teeth proportionings engages and can obtain respectively three kinds of motion results with the gear on central shaft 3, 41 tooth-39 gear planetary wheel groups form gear train in the same way, the rotation direction that is planetary wheel carrier 6 is identical with the rotation direction of central shaft 3, its ratio of gear is 12:1, and the efficiency calculation value of its revesal is negative value, can demonstrate out " self-locking " phenomenon of mechanism, 18 tooth-16 gear planetary wheel groups also can form gear train in the same way, and its ratio of gear is 6:1, 14 tooth-16 gear planetary wheel groups can form reverse drive mechanism, i.e. the direction of rotation of the rotation direction of planetary wheel carrier 6 and central shaft 3, and its ratio of gear is 5:1.Two planetary gears in each planetary gear set can engage with a sun gear that is installed in the gear of 39 teeth on left support abutment 1 and be installed on central shaft 3 respectively.When some planetary gear set are when being positioned at gear on central shaft 3 and engaging, other two planetary gear set are idle, while needs, the nut of back shaft 5 ends is unclamped, rotary support frame so that other planetary gear set engage with the gear on central shaft 3, to realize freely changing of three planetary gear set.On left support abutment 1 and right support abutment 2, be respectively equipped with a motion sensor for measuring center axle 3 and bracing frame rotation direction and rotating speed, wherein bracing frame is structure as a whole or is fixedly connected with planetary wheel carrier 6, therefore the rotation direction of bracing frame and rotating speed are identical with rotation direction and the rotating speed of planetary wheel carrier 6, the signal output part of motion sensor is connected to message handler, and the data output end of message handler is connected with multimedia display screen.The movable information such as rotation direction and rotating speed of the central shaft of measurement 3 and bracing frame is passed to message handler by motion sensor, message handler changes into the data that receive the topmost data of train such as ratio of gear, rotation direction, efficiency and the rotating speed of train, and on multimedia display screen, data after treatment are shown, and show the simulation animation of train motion state simultaneously.
Claims (3)
1. planet circular system simulation teaching aid, it is characterized in that: be provided with a planet circular system analogue means, in this planet circular system analogue means, be provided with left support abutment (1) and right support abutment (2), between left support abutment (1) and right support abutment (2), be rotationally connected a central shaft (3), on central shaft (3), be installed with the sun gear of two different numbers of teeth, on left support abutment (1), be installed with a fixed gear, central shaft (3) passes from this gear centre, on right support abutment (2), be rotationally connected a swivel arm (4) that is driven rotation by handle (7), swivel arm (4) is upper connects a bracing frame by back shaft (5), on bracing frame, be provided with multiple planetary wheel carriers (6) around back shaft (5), on each planetary wheel carrier (6), be equipped with the planetary gear that a planet axis (10) and two are individually fixed in planet axis (10) two ends, planet axis (10) is located in planetary wheel carrier (6) above and is rotationally connected with planetary wheel carrier (6), two planetary gears on each planetary wheel carrier (6) can engage with a sun gear that is installed in the fixed gear on left support abutment (1) and be installed on central shaft (3) respectively, two planetary gears on same planetary wheel carrier (6) have the different numbers of teeth, and the planetary gear on different rows star wheel frame (6) is different from the ratio of gear of the sun gear on central shaft (3), on described left support abutment (1) and right support abutment (2), be respectively equipped with a motion sensor for measuring center axle (3) and bracing frame rotation direction and rotating speed, the signal output part of motion sensor is connected to message handler, the data output end of message handler is connected with multimedia display screen.
2. planet circular system simulation teaching aid as claimed in claim 1, is characterized in that: it is upper that one end of described back shaft (5) is connected to swivel arm (4), and the other end is located in the bolt hole of bracing frame center setting, and fixes by nut.
3. planet circular system simulation teaching aid as claimed in claim 1, it is characterized in that: the right axle sleeve (8) being arranged in right support abutment (2) by rotation between described swivel arm (4) and handle (7) connects, and one end of central shaft (3) is rotated and is arranged in right axle sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343596.5A CN104143285B (en) | 2014-07-18 | 2014-07-18 | Planet circular system simulation teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343596.5A CN104143285B (en) | 2014-07-18 | 2014-07-18 | Planet circular system simulation teaching aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104143285A true CN104143285A (en) | 2014-11-12 |
| CN104143285B CN104143285B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410343596.5A Expired - Fee Related CN104143285B (en) | 2014-07-18 | 2014-07-18 | Planet circular system simulation teaching aid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104346990A (en) * | 2014-11-23 | 2015-02-11 | 王齐贤 | Novel wheel train training aid |
| CN108006170A (en) * | 2017-12-04 | 2018-05-08 | 安徽未来机电科技有限公司 | A kind of planetary reduction gear of multi-change speed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU508791A1 (en) * | 1974-07-12 | 1976-03-30 | Херсонский Филиал Одесского Техноло-Гического Института Им.М.В.Ломоносо-Ва | Mechanical training device |
| CN2566395Y (en) * | 2002-08-30 | 2003-08-13 | 上海科技馆 | Travel multiplication and planetary gear drive mechanism for mechanical driving demonstration device |
| CN203520749U (en) * | 2013-10-14 | 2014-04-02 | 天津大学 | Modular gear train combination experimental device |
| CN203689806U (en) * | 2013-12-31 | 2014-07-02 | 西安理工大学 | Compound gear train transmission mechanism demonstration teaching aid |
| CN203950497U (en) * | 2014-07-18 | 2014-11-19 | 河南科技大学 | Planet circular system simulation teaching aid |
-
2014
- 2014-07-18 CN CN201410343596.5A patent/CN104143285B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU508791A1 (en) * | 1974-07-12 | 1976-03-30 | Херсонский Филиал Одесского Техноло-Гического Института Им.М.В.Ломоносо-Ва | Mechanical training device |
| CN2566395Y (en) * | 2002-08-30 | 2003-08-13 | 上海科技馆 | Travel multiplication and planetary gear drive mechanism for mechanical driving demonstration device |
| CN203520749U (en) * | 2013-10-14 | 2014-04-02 | 天津大学 | Modular gear train combination experimental device |
| CN203689806U (en) * | 2013-12-31 | 2014-07-02 | 西安理工大学 | Compound gear train transmission mechanism demonstration teaching aid |
| CN203950497U (en) * | 2014-07-18 | 2014-11-19 | 河南科技大学 | Planet circular system simulation teaching aid |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104346990A (en) * | 2014-11-23 | 2015-02-11 | 王齐贤 | Novel wheel train training aid |
| CN107665629A (en) * | 2014-11-23 | 2018-02-06 | 合肥龙精灵信息技术有限公司 | Train teaching aid |
| CN107680469A (en) * | 2014-11-23 | 2018-02-09 | 合肥龙精灵信息技术有限公司 | Train teaching aid |
| CN107680468A (en) * | 2014-11-23 | 2018-02-09 | 合肥龙精灵信息技术有限公司 | Train teaching aid |
| CN104346990B (en) * | 2014-11-23 | 2018-02-13 | 李华良 | Train teaching aid |
| CN108006170A (en) * | 2017-12-04 | 2018-05-08 | 安徽未来机电科技有限公司 | A kind of planetary reduction gear of multi-change speed |
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| Publication number | Publication date |
|---|---|
| CN104143285B (en) | 2016-10-05 |
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