Summary of the invention
In order to meet the demand, the invention provides a kind of tabular connecting rod being applied in jacquard heald mechanism, the connecting rod of traditional round spindle-type structure is made into plate profile structure, object is the distortion of resisting connecting rod, significantly can improve the high speed bearing capacity of shedding mechanism, to adapt to large load jacquard.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of tabular connecting rod being applied in jacquard heald mechanism, comprise big end, small end of connecting rod and connecting rod shank, described big end offers swing arm installing hole, described small end of connecting rod offers shedding plate installing hole, described connecting rod shank is made up of web and muscle, the centre-to-centre spacing of described swing arm installing hole and described shedding plate installing hole is 320-460mm, and the thickness of described connecting rod shank is 28-36mm.
Preferably, described connecting rod shank can be triangle, the perpendicular bisector of the center line of described swing arm installing hole and described shedding plate installing hole is provided with a circular platform, the center line of described circular platform is apart from the center line 80-110mm of described swing arm installing hole and described shedding plate installing hole, described big end and described small end of connecting rod all rounded, described big end, connected by three first muscle between described small end of connecting rod and described circular platform, the first web is provided with between three described first muscle, separated by arranging the 4th described first muscle in the middle part of described first web, the width of described first muscle is 8-12mm.
Further, when described connecting rod shank is triangle, described big end is made up of two the first swing arm installation steps, two described first swing arm installation steps offers respectively a coaxial described swing arm installing hole; The described small end of connecting rod of leg-of-mutton described tabular connecting rod is made up of a first shedding plate installation step, described first shedding plate installation step offers a described shedding plate installing hole.
Further, when described connecting rod shank is triangle, described big end is made up of two the first swing arm installation steps, two described first swing arm installation steps offers respectively a coaxial described swing arm installing hole; The described small end of connecting rod of leg-of-mutton described tabular connecting rod is made up of two the first shedding plate installation steps, two described first shedding plate installation steps offers respectively a coaxial described shedding plate installing hole.
Preferably, described connecting rod shank also can be flat pattern, described big end and described small end of connecting rod all rounded, be connected by two second muscle between described swing arm installing hole with described shedding plate installing hole, the second web is provided with between two described second muscle, separated by arranging the 3rd described second muscle in the middle part of described second web, the width of described connecting rod shank is 90-110mm, and the width of described second muscle is 8-12mm.
Further, when described connecting rod shank is flat pattern, described big end is made up of two the first swing arm installation steps, two described first swing arm installation steps offers respectively a coaxial described swing arm installing hole; The described small end of connecting rod of pancake described tabular connecting rod is made up of a second shedding plate installation step, described second shedding plate installation step offers a described shedding plate installing hole.
Further, when described connecting rod shank is flat pattern, described big end is made up of two the first swing arm installation steps, two described first swing arm installation steps offers respectively a coaxial described swing arm installing hole; The described small end of connecting rod of pancake described tabular connecting rod is made up of two the second shedding plate installation steps, two described second shedding plate installation steps offers respectively a coaxial described shedding plate installing hole.
The invention has the beneficial effects as follows:
The present invention is by changing the structural shape of connecting rod, of the prior art upper hand in hand, connecting rod and lower divided piston rod hand in hand make the connecting rod of platy structure into, three part combination are become a part, after connecting rod becomes square-section from original circular cross-section, area of section significantly increases, and improves intensity and the bending resistance of shedding mechanism component, prevents the excessive deformation of connecting rod, significantly improve the high speed bearing capacity of shedding mechanism, to adapt to large load jacquard.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, coordinates accompanying drawing to describe in detail below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Loom speed is more and more higher, the load of jacquard is more and more higher, newly there is the factory of electronic jacquard machine, the overwhelming majority is small-sized jacquard, gating from tens to hundreds of pin, present gating 5120 pin, 8192 pins and 10240 pins, greatly stressed tens times, loom speed brings up to 750-1000 rev/min from 100-200 rev/min, and kinematic system is impacted, and parts cannot hide high vibration.Shedding system is the weakest system of jacquard, can be alleviated bending and the vibration of connecting rod by the structure changing circular shaft shape connecting rod, reduces shedding plate amplitude as much as possible, the excessive deformation preventing connecting rod He griffe.
Fig. 1 is the structure chart of shedding mechanism some mechanical parts, represents that motion is delivered to shedding plate from opening arm axle.Shown in Figure 1, opening arm axle has upper and lower two, the motion of opening arm axle is rendered as swing, swing arm seat is arranged on opening arm axle through key, every root opening arm axle installs horizontal swinging arm seat, front and back swing arm respectively uses ten locked with bolts on swing arm seat, and every root opening arm axle drives four swing arms, two pieces front swing arm and two pieces rear-swing arm.Every part swing arm connects on one leads along by hand, and is above arranged on hand in hand in the arc groove of swing arm, and the large and small head of connecting rod connects hand in hand respectively and down hand in hand, two connecting rods are through lower drive one block of shedding plate hand in hand.Two opening arm axles drive four blocks of shedding plates.Connecting rod is exactly the round steel of a Φ 20 millimeters, and round steel double-ended vehicle has M20 screw thread, is used in connection and leads along by hand up and down.
Greatly, damage parts is frequent, even causes the fracture of crank shaft when 5100 pin jacquards use in shedding mechanism in use bumpy motion, the vibration of jacquard.This shedding mechanism is only suitable for low speed loom, and present air-jet loom turn up 750-1000 rev/min, must improve and develop the shedding mechanism being suitable for high-speed weaving machine.
Fig. 2, Fig. 3 be present jacquard uses on the structure chart of leading along by hand, swing arm is assemblied in hand in hand in the middle of two-arm.Shown in Figure 1, connecting rod by upper hand in hand, connecting rod and combining hand in hand down, connecting rod is stressed member, present employing circular configuration, length of connecting rod can reach 0.5 meter, and two connecting rods drive with one page shedding plate from the left and right sides, when being used in high year jacquard, elongated connecting rod because of stressed bending and distortion, shedding plate therefore motion delay cause vibration.
The present invention makes plate profile structure into round structure connecting rod, and by upper hand in hand, connecting rod and become down parts hand in hand, circular cross-section becomes square-section, and area of section is significantly increased, improve intensity and the bending resistance of connecting rod, significantly can improve the high speed bearing capacity of shedding mechanism.
embodiment 1
See Fig. 4, shown in Fig. 5, a kind of tabular connecting rod being applied in jacquard heald mechanism, steel-casting or aluminum alloy die casting can be adopted, it comprises big end 1, small end of connecting rod 2 and connecting rod shank 3, described connecting rod shank 3 is triangle, described big end 1 and described small end of connecting rod 2 all rounded, described big end 1 is made up of two the first swing arm installation steps 11, two described first swing arm installation steps 11 offer respectively a coaxial described swing arm installing hole 5, described small end of connecting rod 2 is made up of a first shedding plate installation step 21, described first shedding plate installation step 21 offers a described shedding plate installing hole 6, described connecting rod shank 3 is made up of the first web 32 and the first muscle 31, described swing arm installing hole 5 with the perpendicular bisector of the center line of described shedding plate installing hole 6 are provided with a circular platform 4, described big end 1, connected by three described first muscle 31 between described small end of connecting rod 2 and described circular platform 4, described first web 32 is provided with between three described first muscle 31, separated by arranging the 4th described first muscle 31 in the middle part of described first web 32.
The thickness of described connecting rod shank 3 is 28-36mm, described swing arm installing hole 5 is 320-460mm with the centre-to-centre spacing of described shedding plate installing hole 6, the center line of described circular platform 4 is apart from the center line 80-110mm of described swing arm installing hole 5 with described shedding plate installing hole 6, and the width of described first muscle 31 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 11, and bearing pin is assemblied between two described swing arm installing holes 5 and swing arm circular groove, between bearing pin and two described swing arm installing holes 5, bearing is housed; Described first shedding plate installation step 21 is arranged on the centre of the two boards of shedding plate.
embodiment 2
See Fig. 6, shown in Fig. 7, a kind of tabular connecting rod being applied in jacquard heald mechanism, steel-casting or aluminum alloy die casting can be adopted, it comprises big end 1, small end of connecting rod 2 and connecting rod shank 3, described connecting rod shank 3 is triangle, described big end 1 and described small end of connecting rod 2 all rounded, described big end 1 is made up of two the first swing arm installation steps 11, two described first swing arm installation steps 11 offer respectively a coaxial described swing arm installing hole 5, described small end of connecting rod 2 is made up of two the first shedding plate installation steps 21, two described first shedding plate installation steps 21 offer respectively a coaxial described shedding plate installing hole 6, described connecting rod shank 3 is made up of the first web 32 and the first muscle 31, described swing arm installing hole 5 with the perpendicular bisector of the center line of described shedding plate installing hole 6 are provided with a circular platform 4, described big end 1, connected by three described first muscle 31 between described small end of connecting rod 2 and described circular platform 4, described first web 32 is provided with between three described first muscle 31, separated by arranging the 4th described first muscle 31 in the middle part of described first web 32.
The thickness of described connecting rod shank 3 is 28-36mm, described swing arm installing hole 5 is 320-460mm with the centre-to-centre spacing of described shedding plate installing hole 6, the center line of described circular platform 4 is apart from the center line 80-110mm of described swing arm installing hole 5 with described shedding plate installing hole 6, and the width of described first muscle 31 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 11, and bearing pin is assemblied between two described swing arm installing holes 5 and swing arm circular groove, between bearing pin and two described swing arm installing holes 5, bearing is housed; Two described first shedding plate installation steps 21 are arranged on the both sides of shedding plate respectively.
embodiment 3
See Fig. 8, shown in Fig. 9, a kind of tabular connecting rod being applied in jacquard heald mechanism, steel-casting or aluminum alloy die casting can be adopted, it comprises big end 1, small end of connecting rod 2 and connecting rod shank 3, described connecting rod shank 3 is flat pattern, described big end 1 and described small end of connecting rod 2 all rounded, described big end 1 is made up of two the first swing arm installation steps 12, two described first swing arm installation steps 12 offer respectively a coaxial described swing arm installing hole 5, described small end of connecting rod 2 is made up of a second shedding plate installation step 22, described second shedding plate installation step 22 offers a described shedding plate installing hole 6, described connecting rod shank 3 is made up of the second web 34 and the second muscle 33, be connected by two second muscle 33 between described swing arm installing hole 5 with described shedding plate installing hole 6, the second web 34 is provided with between two described second muscle 33, separated by arranging the 3rd described second muscle 33 in the middle part of described second web 34.
The thickness of described connecting rod shank 3 is 28-36mm, and width is 90-110mm, and described swing arm installing hole 5 is 320-460mm with the centre-to-centre spacing of described shedding plate installing hole 6, and the width of described second muscle 33 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 12, and bearing pin is assemblied between two described swing arm installing holes 5 and swing arm circular groove, between bearing pin and two described swing arm installing holes 5, bearing is housed; Described second shedding plate installation step 22 is arranged on the centre of the two boards of shedding plate.
embodiment 4
See Figure 10, shown in Figure 11, a kind of tabular connecting rod being applied in jacquard heald mechanism, steel-casting or aluminum alloy die casting can be adopted, it comprises big end 1, small end of connecting rod 2 and connecting rod shank 3, described connecting rod shank 3 is flat pattern, described big end 1 and described small end of connecting rod 2 all rounded, described big end 1 is made up of two the first swing arm installation steps 12, two described first swing arm installation steps 12 offer respectively a coaxial described swing arm installing hole 5, described small end of connecting rod 2 is made up of two the second shedding plate installation steps 22, two described second shedding plate installation steps 22 offer respectively a coaxial described shedding plate installing hole 6, described connecting rod shank 3 is made up of the second web 34 and the second muscle 33, be connected by two second muscle 33 between described swing arm installing hole 5 with described shedding plate installing hole 6, the second web 34 is provided with between two described second muscle 33, separated by arranging the 3rd described second muscle 33 in the middle part of described second web 34.
The thickness of described connecting rod shank 3 is 28-36mm, and width is 90-110mm, and described swing arm installing hole 5 is 320-460mm with the centre-to-centre spacing of described shedding plate installing hole 6, and the width of described second muscle 33 is 8-12mm.
During installation, the swing arm of shedding mechanism is arranged on the centre of two described first swing arm installation steps 12, and bearing pin is assemblied between two described swing arm installing holes 5 and swing arm circular groove, between bearing pin and two described swing arm installing holes 5, bearing is housed; Two described second shedding plate installation steps 22 are arranged on the both sides of shedding plate respectively.
Above-described embodiment, just in order to technical conceive of the present invention and feature are described, its objective is and is one of ordinary skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.The change of every equivalence done by the essence of content of the present invention or modification, all should be encompassed in protection scope of the present invention.