CN203792973U

CN203792973U - Motion law drawing instrument of pushing rod of cam

Info

Publication number: CN203792973U
Application number: CN201420009562.8U
Authority: CN
Inventors: 刘凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-08
Filing date: 2014-01-08
Publication date: 2014-08-27
Anticipated expiration: 2024-01-08

Abstract

The utility model relates to a motion law drawing instrument of a pushing rod of a cam. The motion law drawing instrument is composed of a base (1), a gear shaft (2), the pushing rod (3) and a sliding block (4). A piece of drawing paper is fixed to a drawing board of the base during surveying and mapping, and then a brush is fixed in a brush pot of the pushing rod. The sliding block (4) is pushed to slide along a slideway, and a motion law graph of the pushing rod is drawn on the drawing paper by the brush at the moment. The motion law drawing instrument of the pushing rod of the cam has the advantages that motion law graphs of pushing rods corresponding to different cams can be accurately drawn, and convenience and simplicity are achieved.

Description

A kind of cam follower characteristics of motion drawing instrument

Technical field

The utility model relates to mapping instrument technology field, particularly a kind of cam follower characteristics of motion drawing instrument.

Background technology

Known, cam is exactly a strength member of mechanical field the research and learning for a long time, and cam is to design according to selected pushrod movement rule, the characteristics of motion of therefore understanding cam follower is learn cam characteristic and detects a whether qualified important step of cam.But do not have for a long time instrument to draw cam follower characteristics of motion figure, caused like this inconvenience in learn cam characteristic and detection cam qualification.

Summary of the invention

For the problems referred to above, the utility model proposes the way of dealing with problems, its technical scheme is: design a pedestal with tooth bar drawing board and slideway, one has the slide block of axis hole, a gear shaft, one with pen container shape as the push rod of lid.Slide block is placed on the slideway of pedestal, then by being arranged on gear shaft with the supporting cam of gear shaft, allows gear shaft be connected with slide block by the axis hole on slide block and gear is engaged with the tooth bar on pedestal, then push rod is covered on slide block.In will drawing the cam follower characteristics of motion, first a drawing paper is fixed on the drawing board on slideway, again paintbrush is placed in pen container and paintbrush is contacted with drawing paper, then promoting slide block makes it move along slideway, in the time that slide block moves along a straight line, the wheel and rack engagement on the gear shaft being connected with slide block forms to rotatablely move and makes its rotation with the cam on moving axis, can promote push rod and move up and down in the time of camming movement, push rod is placed on slideway again, thereby push rod can moving linearly.Be placed on like this paintbrush on push rod and can on drawing paper, draw out the characteristics of motion figure of push rod.

the beneficial effects of the utility model are

Can accurately draw out the characteristics of motion figure of different cam followers, and convenient operation simple in structure.

Brief description of the drawings

below in conjunction with drawings and Examples, this cam follower characteristics of motion drawing instrument is described further.

Fig. 1 is the schematic diagram of the pedestal of the utility model cam follower characteristics of motion drawing instrument;

Fig. 2 is the schematic diagram of the gear shaft of the utility model cam follower characteristics of motion drawing instrument;

Fig. 3 is the schematic diagram of the slide block of the utility model cam follower characteristics of motion drawing instrument;

Fig. 4 is the schematic diagram of the push rod of the utility model cam follower characteristics of motion drawing instrument;

Fig. 5 is the schematic diagram of the utility model cam follower characteristics of motion drawing instrument entirety;

In figure, the 1st, pedestal; The 2nd, gear shaft; The 3rd, push rod; The 4th, slide block; The 5th, cam; The 6th, the pen container on push rod; The 7th, the drawing board on pedestal; The 8th, the slideway on pedestal; The 9th, the tooth bar on pedestal.

Detailed description of the invention

on the drawing board (7) of pedestal, fix a drawing paper ,again paintbrush is fixed on to (6) in the pen container on push rod.Then promote slide block and make it mobile along slideway (8), at this moment paintbrush will mark the characteristics of motion figure of push rod on drawing paper.

Claims

1. a cam follower characteristics of motion drawing instrument, formed by (1) pedestal, (2) gear shaft, (3) push rod, (4) slide block, it is characterized in that: slide block (4) is flexibly connected with pedestal (1), push rod (3) is placed on slide block (4) and retrained by the free degree in horizontal direction.

2. a kind of cam follower characteristics of motion drawing instrument as claimed in claim 1, is characterized in that: gear shaft (2) is flexibly connected with slide block, and engages with the tooth bar on pedestal (1).