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Dual-purpose plotter capable of plotting involute and cycloid

A technology of involute and plotter, applied in the field of teaching aids, can solve the problems of non-existence of involute cycloid plotter, etc., and achieve the effect of multiple functions, simple and reasonable structure design, simple and convenient operation

Inactive Publication Date: 2018-09-28
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, no involute cycloid plotters exist on the market

Method used

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  • Dual-purpose plotter capable of plotting involute and cycloid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The involute cycloid dual-purpose plotter consists of a rack, a large gear, a pinion and a connecting rod, and the connecting rod is used as the driving part; the large gear 3 is selected as the frame, and the connecting rod 4 is used as the driving part to rotate counterclockwise , the indexing line 7 of the rack 2 is always perpendicular to the connecting rod 4 and tangent to the indexing circle of the bull gear 3, after the drawing hole 9 on the indexing line 7 is installed with a drawing tool, a standard involute can be drawn; if Drawing tool is installed in the outside drawing hole 8 of indexing line 7, and short involute can be drawn out; If drawing tool is installed in drawing hole 10, inboard drawing hole of indexing line 7, long involute can be drawn out; Drawing tools installed in drawing holes in different columns of 2 will produce involutes of different segments; if the connecting rod 4 is reversed, an involute in the opposite direction will be produced, whic...

Embodiment 2

[0020] Choose the large gear 3 as the frame, and the connecting rod 4 as the driving part to rotate counterclockwise. The index line 7 of the rack 2 is always perpendicular to the connecting rod 4 and tangent to the index circle of the large gear 3. If the drawing tool is installed on On the indexing circle of the pinion 1, the epicycloid can be drawn as a cycloid plotter. In the same way, the pinion 1 as the frame can also become a cycloid plotter.

Embodiment 3

[0022] Select the rack 2 as the rack, and the connecting rod 4 as the driving member to rotate counterclockwise, and install a drawing tool on the drawing hole 5 of the large gear 3 or the drawing hole 11 of the pinion 1, and the cycloid based on the straight line 7 can be drawn, which is for the cycloid plotter. Different drawing holes can be selected on the indexing circle of the large gear 3 or the pinion 1 to obtain cycloids of different stages.

[0023] The involute cycloid dual-purpose plotter of the above embodiment is mainly composed of a rack, a bull gear, a pinion and a connecting rod. One of the gear rack, the bull gear and the pinion is selected as the frame, and the connecting rod is the prime mover. If you choose different drawing holes and install drawing tools, you can draw involutes or cycloids of different styles and segments, which can be used in scientific research,

[0024] In teaching, it can be used for teachers' scientific research or students' experim...

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Abstract

The invention discloses a dual-purpose plotter capable of plotting an involute and a cycloid. The dual-purpose plotter comprises a rack, a large gear, a pinion, a connecting rod and the like, whereinthe two ends of the connecting rod are hinged to the large gear and the pinion through hinges respectively, and the connecting rod serves as a driving link; the large gear and the pinion are located on the two sides of the rack respectively to form a gear higher pair, and the large gear and the pinion are in pure rolling contact with the rack; two parallel reference lines are marked on the rack, and the two parallel reference lines are tangent to a reference circle of the large gear and a reference circle of the pinion respectively; and the length of the connecting rod serving as the driving link is equal to the sum of the radius of the large gear and the radius of the pinion plus the distance between the two reference lines on the rack. If one of the large gear and the pinion is regardedas a machine frame, a plotting tool is installed on the reference lines of the rack or on the inner side and the outer side of the rack so that the involutes with different shapes can be plotted, andthen a plotting tool is installed on the reference circle of the other gear so that the outer cycloid can be plotted; and if the rack is regarded as the machine frame, plotting tools are installed onthe reference circle of the large gear and the reference circle of the pinion so that two cycloids of different shapes can be plotted. The dual-purpose plotter capable of plotting the involute and thecycloid is simple and reasonable in structural design, various in function and simple and convenient to operate.

Description

technical field [0001] The invention relates to teaching equipment, specifically, it is an involute cycloid dual-purpose plotter, which belongs to teaching experiment equipment [0002] Structural technology field. Background technique [0003] Involutes and cycloids are two tooth profile curves widely used in gears. In the teaching process, in order to clearly express the production process, animation simulation is usually used to complete it. Although the perceptual knowledge of students has been improved, it is not conducive to the cultivation of students' hands-on ability. The involute-cycloid dual-purpose plotter is generally used in scientific research and teaching to conduct research or experiments on teachers or students to verify the effect. Currently, no involute cycloid plotters exist on the market. Contents of the invention [0004] The invention aims to provide an involute cycloid dual-purpose plotter with simple structure and convenient operation, which ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L11/00B43L11/08
CPCB43L11/00B43L11/08
Inventor 王品刘建霞李栋
Owner LUDONG UNIVERSITY