Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Beating-up mechanism of non-circular gear planetary gear system

A planetary gear train and non-circular gear technology, applied in the field of weft beating mechanism of looms, can solve the problems of high machining accuracy, many hinge points, large cumulative error, etc., and achieve the effect of compact structure and short transmission chain

Inactive Publication Date: 2011-05-25
ZHEJIANG SCI-TECH UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the weft beating mechanisms of looms sold in the domestic market mainly include: conjugate cam beating mechanism, this type of mechanism can easily meet the motion law required for weft beating, and can achieve a complete pause time of about 240°, but the cam profile The processing accuracy is quite high, and if there is an error, there will be an impact; the four-link beating-up mechanism, if a beating displacement of about 5mm is allowed, can achieve an "approximate pause" time of about 65°, and its performance is worse than that of the conjugate cam beating-up mechanism , can only be used for the integral sley; if the six-link beating-up mechanism is allowed to have a beating displacement of about 5mm, it can achieve an "approximate pause" time of about 120°, and its performance is better than that of the four-link beating-up mechanism. It can only be used for the integral sley. In addition, the mechanism has more hinge points and the cumulative error is large, so the machining accuracy is required to be greater than that of the four-link beating-up mechanism.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Beating-up mechanism of non-circular gear planetary gear system
  • Beating-up mechanism of non-circular gear planetary gear system
  • Beating-up mechanism of non-circular gear planetary gear system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like figure 1 As shown, the planet carrier 1 of the present invention is driven by the main shaft 2 of the loom, the active non-circular sun gear 3 is looped on the main shaft 2 of the loom, and the active non-circular sun gear 3 does not move. The planetary shaft 4 is driven by the planet carrier 1, and the driven non-circular planetary gear 5 and the driving non-circular planetary gear 6 are fixed on the planetary shaft 4 respectively, and the driven non-circular planetary gear 5 and the driving non-circular The circular planetary gear 6 meshes with the driven non-circular sun gear 7, the driven non-circular sun gear 7 is fixed on the rocking shaft 8 (ie output shaft), and the beating sley 9 is fixed on the rocking shaft 8.

[0020] The main shaft 2 of the loom and the rocking shaft 8 are collinear, the center distance between the first-stage ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a beating-up mechanism of a non-circular gear planetary gear system. A non-circular gear planetary system mechanism is adopted to convert the uniform rotation of a weaving machine spindle into the non-uniform intermittent swinging of a sley. A planet carrier is driven by the weaving machine spindle, and a driving sun gear is movably sleeved on the weaving machine spindle, wherein the driving sun gear is immovable. A planet shaft is driven by the planet carrier, and two non-circular gears are fixedly connected to the planet shaft, wherein one non-circular gear is engaged with the driving sun gear, while the other non-circular gear is engaged with a driven sun gear; the driven sun gear is fixedly connected to an output shaft, i.e. a rocking shaft; and the beating-up sley is fixedly connected to the rocking shaft. Through establishing a two-stage non-circular gear driving mathematical model, a non-circular gear pitch curve is designed according to an output rotation angle rule of a given rocking shaft so as to realize the full dwell time of the sley at a back center position of 240 DEG C. The beating-up mechanism has short drive chain and compact structure and completely meets the beating-up technological requirement of the weaving machine.

Description

technical field [0001] The invention relates to a weft beating mechanism of a loom, in particular to a non-circular gear planetary gear train beating mechanism. Background technique [0002] The function of the weft beating mechanism is to convert the uniform rotational motion of the main shaft of the loom into the non-uniform swing of the sley. It is required that the sley should have a pause time or "approximate pause" time at the back center position so that there is sufficient time for the weft insertion mechanism to Complete the weft insertion action. At present, the weft beating mechanisms of looms sold in the domestic market mainly include: conjugate cam beating mechanism, this type of mechanism can easily meet the motion law required for weft beating, and can achieve a complete pause time of about 240°, but the cam profile The processing accuracy is quite high, and if there is an error, there will be an impact; the four-link beating-up mechanism, if a beating displa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D03D49/60
Inventor 陈建能赵雄任根勇王英赵匀
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products