Hand-operated type multi-tooth-form drawing machine

A hand-operated, drawing machine technology, applied in the direction of non-circular curve plotters, simulators, mechanical equipment, etc., can solve the problems of unimaginable fanfare, reduce the interest of experimenters, and the cumbersome and lengthy process of drawing teeth, etc., to achieve enhanced understanding , Easy to operate, increase the effect of interest

Inactive Publication Date: 2015-11-25
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the process of drawing teeth is cumbersome and long, and it is difficult to imagine the process of machini

Method used

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  • Hand-operated type multi-tooth-form drawing machine
  • Hand-operated type multi-tooth-form drawing machine
  • Hand-operated type multi-tooth-form drawing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Below in conjunction with specific embodiment, the present invention is further described:

[0022] Such as figure 1 figure 2 image 3 Figure 4 The shown hand-operated multi-toothed plotter includes a worm shaft 1 on which a first worm 2 and a second worm 5 are respectively connected to the first worm 4 and the second worm 17, and synchronized Drive the first rotating shaft 3 and the second rotating shaft 6 to rotate, wherein the first rotating shaft 3 is connected to the four-bar linkage mechanism 22 through the crank 21 for reciprocating motion, and a space cam 16 is installed on the second rotating shaft 6; the space cam 16 is a spiral Groove structure, the cam follower pin 18 is stuck in the groove, and the cam follower pin 18 can move along the groove; the cam follower pin 18 connects the rack cutter 13 and the rack 20, and the rack 20 is connected and driven by the gear 19 Animation tooth disk 15 moves; Described four-bar linkage mechanism 22 connects and dr...

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PUM

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Abstract

The invention provides a hand-operated type multi-tooth-form drawing machine including a worm shaft with two worms, the worm shaft synchronously drives two equal-size worm gears in separate paths, the two worm gears are respectively connected with two rotating shafts, the first rotating shaft is connected with a four-bar mechanism to perform a reciprocating motion, a space cam is arranged on the second rotating shaft, the space cam has a spiral groove structure, a cam driven pin is clamped in the groove and can move along the groove, the cam driven pin is connected with a rack cutter and racks, the racks are connected through gears and drive a tooth drawing disc to rotate, the four-bar mechanism is connected with and drives a pen carrying device, the pen carrying device includes an edge tooth head which is cooperatively contacted with the tooth form of the rack cutter, and the pen carrying device draws the tooth form under the limitation of the edge tooth head displacement while moving. The drawing machine is convenient to operate, can rapidly draw the tooth forms of the gears as required, and can increase students' interest and understanding in mechanical principles and gear generation method experiments.

Description

technical field [0001] The invention relates to the technical field of teaching experiment instruments, in particular to a hand-operated multi-tooth shape plotter used for gear fan-forming method experiments in mechanical teaching. Background technique [0002] At present, the instrument for doing the gear fanning method experiment is composed of a toothed plate, a gear, a rack and a rack cutter. The experimenter needs to move the rack intermittently for a short distance to drive the gear to rotate. During the time when the rack and pinion are stagnant, use a pencil to trace the trajectory of the tool over and over again along the shape of the tool on the paper on the drawing board. This process requires eyes to be fixed on the tip of the pen. , a number of trajectory envelopes form the shape of a gear, and the gear is depicted. Only two kinds of tooth shapes can be drawn on the paper (ie, standard tooth shape and shifted tooth shape), but to form an undercut tooth shape, i...

Claims

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Application Information

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IPC IPC(8): G09B9/00B43L11/00F16H37/12
Inventor 梁龙沈毅理中强郑彪李言
Owner WUHAN INSTITUTE OF TECHNOLOGY
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