Reversal method teaching tool of epicyclic gear train

A technology of epicyclic gear train and inversion method, which is applied in the field of teaching instruments, can solve the problems of inability to realize epicyclic gear train type conversion, poor intuition and operability, non-real-time speed measurement, etc., and achieve light weight, convenient operation and excellent manufacturing process. simple effect

Active Publication Date: 2014-09-24
UNIV OF SCI & TECH LIAONING
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  • Application Information

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Problems solved by technology

The problems of this device and method are: (1) the derivation of the calculation formula of the epicyclic gear train inversion method can be realized through multiple assembly and disassembly of the mechanism, and the inversion method demonstration effect is poor in intuition and operability; (2) the power adopts

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  • Reversal method teaching tool of epicyclic gear train
  • Reversal method teaching tool of epicyclic gear train
  • Reversal method teaching tool of epicyclic gear train

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Embodiment Construction

[0017] The present invention will be described in more detail below in conjunction with the drawings.

[0018] Such as figure 1 As shown, an epicyclic gear train reversal method teaching aid is composed of a main body demonstration part, a large sun gear and a small sun gear drive device, a main shaft reverse drive device, a speed measurement display device and a frame. The main body demonstration part, the driving devices of the large sun gear 7 and the small sun gear 21 are all installed on the main shaft 1. The main shaft 1 and the planet carrier 11 rotate at the same speed and opposite direction to realize the "reverse" of the epicyclic gear train.

[0019] Such as image 3 As shown, the main body demonstration part consists of the small sun gear 21, the big sun gear 7, the planet carrier 9, the planet gear 8, the sleeve A5, the sleeve B10, the needle bearing A31, the needle bearing B28, the needle bearing C27, and the needle roller Bearing D30, pin 29 and main shaft 1, small ...

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Abstract

The invention discloses a reversal method teaching tool of an epicyclic gear train. The accuracy and the veracity of a reversal method formula are verified by measuring the rotating speeds generated before and after a reversal method is adopted, and meanwhile types of the epicyclic gear train can be converted. The teaching tool comprises a body demonstration part, a large sun gear and small sun gear driving device, a main shaft reversal driving device, a measured speed display device and a rack, wherein the body demonstration part and the large sun gear and small sun gear driving device are both installed on a main shaft, the main shaft rotates at the speed with the magnitude equal to and the direction opposite to those of a planet carrier, the epicyclic gear train is driven by the main shaft to reverse as a whole, and reversal method demonstration is achieved. According to the teaching tool, based on reversing of the main shaft, the structure is simplified, the manufacturing technology is simple, and the teaching tool is easy to obtain; the dynamic contact mode in which a carbon brush and a friction ring are combined is adopted for supplying power to a sun gear driving motor, and the problem that a motor lead is wound on the shaft is solved. The teaching tool is small in size as a whole, light in weight and convenient to operate and use in a classroom.

Description

Technical field [0001] The invention relates to the field of teaching instruments, in particular to a teaching aid for the epicyclic gear train reversal method. Background technique [0002] In the mechanical principle courses for mechanical majors and the basic mechanical design courses for near-mechanical majors, the "reversal method" of the epicyclic gear train has always been a difficult point in classroom teaching. The method is abstract and difficult to understand, and there is no corresponding teaching aids for classroom demonstrations. , So that students with poor spatial imagination skills cannot master this knowledge point. Even if they can understand the reversal method, many students have no definite verification of the authenticity and correctness of the calculation formula of the reversal method, and they always have doubts. [0003] Consult the patent literature, Chinese Patent Publication (Announcement) No. CN103824503A, which discloses an experimental device and me...

Claims

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Application Information

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IPC IPC(8): G09B25/02
Inventor 赵旭安龙张策赵福强余根楠杜超
Owner UNIV OF SCI & TECH LIAONING
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