Device used for measuring torsional angle of weaving machine rocking shaft twisting vibration

Abstract

There is a sort of set which is used to measure the torsional angle and the torsional oscillation of the rockshaft of the loom, this invention consists ofthe output unit of the signal of the principal axis which is used to measure and the export the angular displacement of the principal axis, the output unit of the signal of the rockshaft which is used to measure and export the angular displacement signal, the strain analysis unit of the rockshaft which is used to measure and export the change of the middle of the rockshaft, the exerciser which is used to analyze the angle of torsion of the rockshaft and the size of the torsional oscillation. The angular output unit of the principal axis consists of the coder and the output plate of the angle of the principal axis. The output unit of the signal of the rockshaft consists of the obliquity sensing device and the obliquity detecting plate. The strain analysis of the rockshaft consists of the Strain Bridge and the strain detecting plate of the rockshaft. The obliquity detecting plate is fixed in the two sides of the rockshaft; it can check the rotational non-synchronism of the two sides of the rockshaft. The strain bridge which is fixed in the center of the rockshaft can test the change of the middle of the rockshaft, then compute by the exerciser, namely it can hold the connection between the rotate speed, the moment of inertia of the rockshaft and the torsional oscillation of the rockshaft from the quantitatively. This set is simple and utility, and it applies to the design of the neotype air-jet loom.

Description

technical field [0001] The invention relates to a device for measuring the torsional vibration angle of a rocking shaft of a loom. Background technique [0002] The beating-up mechanism is the main component of the air-jet loom. Accompanying drawing 1 has provided the motion principle of the weft-beating mechanism, and the beating-up mechanism is a crank rocker mechanism, and this crank-rocker mechanism is composed of crank 8, handle 9, rocking bar 10, The rocking shaft 7 is formed, the main shaft 6 rotates 360 degrees and rotates with the crank 8, the crank 8 drives the rocking bar 10 to swing by holding hands 9, and the rocking bar 10 drives the rocking shaft 7 to swing. [0003] Accompanying drawing 3 is the schematic diagram of swinging part of rocking shaft, and rocking shaft swinging part is made up of parts such as rocking shaft 7, sley foot 41, sley 42 and steel reed 43, and rocking shaft is a part that length is 2280-4000 millimeters, generally In this case, the ro...

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Problems solved by technology

[0005] At present, the spindle speed of the air-jet loom is getting higher and higher, and the stress on each component increases according to the square of the rotation speed, and the failure rate of the components (especially the failure rate of the rocking shaft breaking) increases exponentially. The torsional vibration of the oscillating parts of the rocking shaft has been studied, and the relationship between the main shaft speed, the moment of inertia of the oscillating parts of the rocking shaft, and the torsional vibration angle of the rocking shaft is still blank. Lack of actual measured data when monitoring components or designing new air-jet looms

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