SL-PJKT type planar mechanism creative combination and parameter visual analysis experimental bench

Main technical parameters
DC motor power
Working speed
One grating angular displacement sensor
One linear displacement sensor, range, accuracy
Connecting rod in the range The spacing between the mounting holes is adjustable in steps within the range
The spacing between the mounting holes is step-adjustable within the range of the guide rod
The spacing between the mounting holes is step-adjustable within the range of the rocker
The transmission ratio of the belt drive is< br/> The chain drive transmission ratio is
There are three types of gears
Overall dimensions
Weight
A basic configuration
The assembly and disassembly platform consists of six beams and two side plates. The spacing between the cross beams can be easily adjusted on the side panels, forming a four-layer installation space. The drive motor can be adjusted within a wide range (both horizontal and longitudinal transmission components can be installed on the cross beams. Mounting holes and hinges are processed on both ends of the cross beams. The crossbeam installation slot can be directly inserted through this hole
The transmission device adopts two types: belt drive and chain drive, with the center distance between The other is adjustable and uses a fixed support base and a cross beam connection form, and the crank length is steplessly adjustable within the range
The incomplete gear transmission adopts an integral structure, the number of working teeth of the driving wheel is teeth, the motion period is/, and the motion input The output is in the form of rotation
The cam mechanism adopts a constant velocity cam (other cams are optional, equipped with two kinds of tips: tip and roller, and the ejector adopts force sealing method
The ratchet mechanism adopts a toothed external meshing structure. The active pawl is, the check pawl is, the number of ratchet teeth is, the pawl is fixed with a connecting rod, the swing angle of the active rod is adjustable, the maximum span of teeth
The sheave mechanism adopts an external sheave mechanism, the sheave The number of slots, the input and output of the driving pin motion are in the form of rotation
The gear and rack mechanism adopts an integral structure, the swing angle of the driving gear is adjustable, the number of gear teeth, the number of rack teeth
One motor frame each, grating angular displacement One sensor, one linear displacement sensor each
Various rotating pairs of gears, moving auxiliary libraries, etc.
And the following assembly solutions are provided
Handle rocker mechanism Handle guide rod rocker mechanism
Handle alignment Slider mechanism handle eccentric slider mechanism
handle guide rod centering slider mechanism crank guide rod eccentric slider mechanism
wheel mechanism sheave mechanism
)wheel crank rocker ratchet mechanism gear transmission< br/> ) handle rocker rack and pinion mechanism complete gear mechanism
) wheel crank rocker mechanism wheel crank guide rod centric slider mechanism
gear crank guide rod eccentric slider mechanism wheel crank slider ( Bullhead planer) mechanism
(Gear guide rod rocker mechanism gear shaper mechanism
One test data collection box, one set of supporting teaching-specific software, one set of random tools
Two experimental contents
The innovative assembly design experiment of the mechanism system can flexibly assemble the above types of planar transmission mechanisms. The assembled mechanism can ensure the matching accuracy, flexible movement, and no jamming and interference phenomena
The visual analysis experiment of the motion parameters of the basic planar mechanism can detect various The displacement velocity and acceleration of the movable components of a planar mechanism are displayed on the computer. Through the analysis of the component motion curves, the movement rules and status of the mechanism can be understood, and then the mechanism can be redesigned, assembled and adjusted
In extracurricular activities Mechanism innovation experiments using this mechanical platform allow users to design and add components to assemble new mechanisms.
Configure virtual simulation software, which can be used for data simulation and design parameter verification.
Three performance characteristics
The modular design can use the basic component library to innovatively design and assemble into a variety of planar mechanism systems. Inspire students' innovative thinking and cultivate hands-on ability
Can detect the movement rules of any mechanism's movable components and perform mechanism analysis
Can use the supporting software of the experimental bench to perform virtual design and motion curve simulation of rod mechanisms and cam mechanisms
The test and mechanical parts are separated, with less interference and easy maintenance
The test system adopts advanced single-chip microcomputer test method and serial port communication. The test data has high accuracy, fast speed and stable performance
When designing the mechanical and software structure Taking into account the characteristics of openness, it provides convenience for users to add new functions.
The motor speed of this experimental bench can be adjusted through software control, without manual adjustment.
Contents and features of five detection control systems and teaching analysis software
The detection control system takes a series of single-chip units as the core and is equipped with an amplification, filtering and anti-interference circuit to achieve data acquisition, amplification, preliminary processing and data communication. The system uses a serial port Realize information communication between the data acquisition box and the computer
The experimental platform teaching analysis software is used as a development platform, including the introduction of experimental content, visual analysis of motion parameters, analysis of experimental results, etc. It can analyze the four-bar mechanism crank, rocker, crank, slider, crank Virtual mechanism design is carried out on the guide rod rocker crank guide rod slider (parameters can be input through the dialog box and the motion trajectory of the points on the connecting rod is analyzed) and the virtual motion cam mechanism has eight different types of cams that can rotate and The radius of the base circle, the lift angle, the radius of the roller, and the groove mechanism and ratchet mechanism can be changed.
The real-time change curve of the motion parameters can be displayed in real time, and the curve can be printed, and the collected data can be generated into a form and printed.
/> Can perform virtual design and motion simulation of rod mechanism and cam mechanism
The upper-level software of the system is open source code to users, and the content design adopts drop-down menu style to facilitate users to develop the software for the second time
Use The experimental teaching software provides experimental guidance to meet the needs of open experimental teaching. It not only facilitates teacher guidance, but also achieves the purpose of students' own hands-on operations.
Six shapes and surface treatments
Atmosphere and physical sense, strong processing and fine processing
Exposed metal parts are chrome plated and other surfaces are treated with anti-rust treatment and sprayed with plastic
The sprayed surface is flat, smooth and clean without scratches and peeling spots.