CN201132876Y

CN201132876Y - Main transmission mechanism of jacquard

Info

Publication number: CN201132876Y
Application number: CNU2007200423957U
Authority: CN
Inventors: 周平; 祝章琛
Original assignee: Jiangsu Wangong Technology Group Co Ltd
Current assignee: Jiangsu Wangong Technology Group Co Ltd
Priority date: 2007-11-21
Filing date: 2007-11-21
Publication date: 2008-10-15
Anticipated expiration: 2017-11-21

Abstract

A main transmission mechanism of a jacquard machine comprises two sets of crank rocker mechanisms, and comprises a first rocker hinged on a rack, a second rocker hinged on the rack, a first connecting rod hinged with the first rocker, a second connecting rod hinged with the second rocker, a first crank hinged with the first connecting rod and used for driving the first connecting rod to move, and a second crank hinged with the second connecting rod and used for driving the second connecting rod to move, wherein the first crank and the second crank are coaxial, the phase difference is 180 degrees, the manufacturing precision and the use condition of the crank rocker mechanism are low in requirement, the cost is reduced, and the requirement of a high-speed air jet loom can be met.

Description

The jacquard main drive gear

Technical field

The utility model relates to a kind of main drive gear of jacquard.

Background technology

The main drive gear of current jacquard adopts conjugate cam more, by design to conjugate cam outline curve, girff can obtain the long dead time in the highest and extreme lower position, but the conjugate cam accuracy of manufacture is had relatively high expectations, in case the accuracy of manufacture does not reach requirement, then can cause the high end breakage rate of warp thread, improved cost, and when the jacquard rotating speed was 375-500 rev/min, the fault rate of conjugate cam main transmission was very high, can't be suitable for to be suitable for high-revolving air-jet loom.

Summary of the invention

The utility model provides a kind of jacquard main drive gear, and its cost is lower, and can be used for high-revolving air-jet loom.

In order to reach above purpose, the utility model has adopted following scheme:

A kind of jacquard main drive gear, comprise frame, slidably be arranged on the described frame and can be used for producing first slide block and second slide block of harness motion, be hinged on described frame and can drive first rocking bar of described first slide block movement, be hinged on described frame and can drive second rocking bar of described second slide block movement, the first connecting rod that described jacquard main drive gear also is hinged with described first rocking bar, the second connecting rod that is hinged with described second rocking bar, be hinged with described first connecting rod and be used to drive first crank of first connecting rod motion, be hinged with described second connecting rod and be used to drive second crank of second connecting rod motion, described first crank and second crank are that center of rotation and phase difference are 180 ° with the 5th rotating shaft all.

Described first crank and second crank are a bent axle, and first crank throw on described first connecting rod and this bent axle is hinged, and second crank throw on described second connecting rod and this bent axle is hinged, and the phase difference of described first crank throw and second crank throw is 180 °.

The two ends of described bent axle are installed on the described frame by the clutch shaft bearing and second bearing respectively.

One end of described bent axle is connected with the output shaft of motor by driving belt.

Owing to adopted above technical scheme, so have following advantage: the utility model jacquard main drive gear is made of two cover crank endplay devices, coaxial and the phase difference of the crank of two cover crank endplay devices is 180 °, because it is lower that the accuracy of manufacture of crank and rocker mechanism and service condition require, reduce cost, and can satisfy the demand of high rotating speed air-jet loom.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the utility model jacquard main drive gear;

Accompanying drawing 2 is the structural representation of the utility model jacquard main drive gear;

Accompanying drawing 3 is the front view of bent axle in the utility model jacquard main drive gear.

Wherein: 1, frame; 2, first rotating shaft; 3, first rocking bar; 4, second rotating shaft; 5, first connecting rod; 6, motor; 7, driving belt; 8, first crank throw; 9, bent axle; 10, second crank throw; 11, second connecting rod; 12, the 3rd rotating shaft; 13, second rocking bar; 14, the 4th rotating shaft; 15, clutch shaft bearing; 16, second bearing; 17, first crank; 18, second crank; 19, the 5th rotating shaft; 20, third connecting rod; 21, the 4th connecting rod; 22, first slide block; 23, second slide block; 24, the 6th rotating shaft; 25, the 7th rotating shaft; 26, the 8th rotating shaft; 27, the 9th rotating shaft.

The specific embodiment

As shown in Figure 1, a kind of jacquard main drive gear, comprise frame 1, slidably be arranged on the frame 1 and can be used for producing first slide block 22 and second slide block 23 of harness motion, can drive the rocking bar of

first slide block

22 and 23 motions of second slide block, the utility model jacquard main drive gear is made of two cover crank endplay devices, comprise first rocking bar 3 that is hinged on the frame 1, be hinged on second rocking bar 13 on the frame 1, the first connecting rod 5 that is hinged with first rocking bar 3, the second connecting rod 11 that is hinged with second rocking bar 13, be hinged with first connecting rod 5 and be used to drive first crank 17 of first connecting rod 5 motions, second crank, 18, the first cranks 17 and second crank 18 that are hinged with second connecting rod 11 and are used to drive second connecting rod 11 motions are that center of rotation and phase difference are 180 ° with the 5th rotating shaft 19 all.

Shown in accompanying drawing 2, accompanying drawing 3, in order to make this jacquard harness motion main drive gear can better adapt to high-speed weaving machine, first crank 17 in the present embodiment and second crank 18 are a bent axle 9, first crank throw 8 on first connecting rod 5 and this bent axle 9 is hinged, second crank throw 10 on second connecting rod 11 and this bent axle 9 is hinged, the phase difference of first crank throw 8 and second crank throw 10 is 180 °, during bent axle 9 rotations, first crank throw 8 and second crank throw 10 can be equivalent to first crank 17 and second crank 18 in rotation around the center rotation of bent axle 9.As shown in Figure 1, first rocking bar 5 also is hinged with an end of third connecting rod 20, and the other end of third connecting rod 20 and first slide block 22 are hinged by the 8th rotating shaft 26; Second rocking bar 13 also is hinged with an end of the 4th connecting rod 22, and the other end of the 4th connecting rod 21 and second slide block 23 are hinged by the 9th rotating shaft 27, and first slide block 22 and second slide block 23 can be used for producing harness motion.

The two ends of bent axle 9 are installed on the frame 1 by the clutch shaft bearing 15 and second bearing 16 respectively, and an end of bent axle 9 is connected by the output shaft of driving belt 7 with motor 6.

When bent axle 9 rotates under the drive of motor 6, first crank throw 8 and second crank throw 10 can drive first connecting rod 5 and second connecting rod 11 motions, and then to make first rocking bar 3 be that rotate at the center, second rocking bar 13 be the center rotation with the 3rd rotating shaft 12 with first rotating shaft 2, and first rocking bar 3 is relative with the direction of motion of second rocking bar 13 or on the contrary, can drive first slide block 22 and second slide block, 23 generation harness motions by third connecting rod 20 and the 4th connecting rod 21.The accuracy of manufacture of bent axle 9 and service condition require lower, have reduced cost, and can satisfy the demand of high-revolving air-jet loom.

Claims

1, a kind of jacquard main drive gear, comprise frame (1), slidably be arranged on first slide block (22) and second slide block (23) that described frame (1) went up and can be used for producing harness motion, be hinged on described frame (1) and can drive first rocking bar (3) that described first slide block (22) moves, be hinged on described frame (1) and can drive second rocking bar (13) that described second slide block (23) moves, it is characterized in that: described jacquard main drive gear also comprises the first connecting rod (5) that is hinged with described first rocking bar (3), the second connecting rod (11) that is hinged with described second rocking bar (13), be hinged with described first connecting rod (5) and be used to drive first crank (17) of first connecting rod (5) motion, be hinged with described second connecting rod (11) and be used to drive second crank (18) of second connecting rod (11) motion, described first crank (17) and second crank (1 8) are that center of rotation and phase difference are 1 80 ° with the 5th rotating shaft (19) all.

2, jacquard main drive gear according to claim 1, it is characterized in that: described first crank (17) and second crank (18) are a bent axle (9), first crank throw (8) on described first connecting rod (5) and this bent axle (9) is hinged, second crank throw (10) on described second connecting rod (11) and this bent axle (9) is hinged, and the phase difference of described first crank throw (8) and second crank throw (10) is 180 °.

3, jacquard main drive gear according to claim 2 is characterized in that: the two ends of described bent axle (9) are installed on the described frame (1) by clutch shaft bearing (15) and second bearing (16) respectively.

4, jacquard main drive gear according to claim 2 is characterized in that: an end of described bent axle (9) is connected by the output shaft of driving belt (7) with motor (6).