CN201132877Y

CN201132877Y - Main transmission mechanism of jacquard

Info

Publication number: CN201132877Y
Application number: CNU2007200418535U
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: 2007-11-20
Filing date: 2007-11-20
Publication date: 2008-10-15
Anticipated expiration: 2017-11-20

Abstract

A main transmission mechanism of a jacquard comprises a frame, a first sliding block and a second sliding block which are arranged on the frame in a sliding mode and used for generating opening movement, a connecting rod capable of driving the first sliding block and the second sliding block to move, and a crankshaft which is arranged on the frame in a rotating mode, wherein the crankshaft is provided with a first crank throw and a second crank throw, the connecting rod comprises a first connecting rod hinged with the first crank throw and a second connecting rod hinged with the second crankshaft, the requirements on the manufacturing precision and the use condition of the crankshaft are low, the cost of the jacquard is reduced, and the requirements of a high-speed air jet loom can be met.

Description

The jacquard main drive gear

Technical field

The utility model relates to the main drive gear on a kind 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 be used to produce harness motion first slide block and second slide block, can drive the connecting rod of described first slide block and second slide block movement, the rotatable bent axle that is provided with on the described frame, have first crank throw and second crank throw on this bent axle, described connecting rod comprises first connecting rod that is hinged with first crank throw and the second connecting rod that is hinged with second bent axle.

The phase difference of described first crank throw and second crank throw is 180 °.

The center line of described first crank throw and second crank throw is 25 millimeters-40 millimeters to the distance of bent axle 2 center lines.

Described first crank throw and the second crank throw diameter are 25 millimeters-50 millimeters.

Described first crank throw and second crank throw are 24 millimeters-40 millimeters along the axial length of described bent axle.

Described bent axle is installed on the described frame by the clutch shaft bearing and second bearing.

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

Owing to adopted above technical scheme, so the utlity model has following advantage: the utility model jacquard main drive gear is made of crankshaft connecting rod system, has phase difference on the bent axle and is two crank throws of 180 °, this crank throw is hinged with the connecting rod that drives first slide block and second slide block generation harness motion, the accuracy of manufacture of bent axle and service condition require lower, reduce the cost of jacquard, and can satisfy the demand of high rotating speed air-jet loom.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model jacquard main drive gear;

Accompanying drawing 2 is the front view of bent axle in the utility model jacquard main drive gear.

Wherein: 1, frame; 2, bent axle; 3, first crank throw; 4, second crank throw; 5, clutch shaft bearing; 6, second bearing; 7, driving belt; 8, motor; 9, first connecting rod; 10, second connecting rod; 11, first rotating shaft; 12, second rotating shaft; 13, first crank; 14, second crank; 15, third connecting rod; 16, the 4th connecting rod; 17, first slide block; 18, second slide block; 19, the 3rd rotating shaft; 20, the 4th rotating shaft; 21, the 5th rotating shaft; 22, the 6th rotating shaft; 23, the 7th rotating shaft; 24, the 8th 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 be used to produce harness motion first slide block 17 and second slide block 18, can drive the connecting rod of first slide block 17 and the motion of second slide block 18, the rotatable bent axle 2 that is provided with on the frame 1, have first crank throw 3 and second crank throw 4 on this bent axle 2, connecting rod comprises first connecting rod 9 that is hinged with first crank throw 3 and the second connecting rod 10 that is hinged with second bent axle 4.

In order to obtain the bigger movement travel of leaning on, the phase difference of first crank throw 3 and second crank throw 4 is 180 ° in the present embodiment.As shown in Figure 2, wherein size A represents the distance of crank throw center line to bent axle 2 center lines, promptly in the eccentric throw present embodiment of crank throw first crank throw 3 and second crank throw 4 center line be 25 millimeters-40 millimeters to the distance between center line of bent axle 2.

The specification of current jacquard is generally selected 1408,2688 or 5120 pins, requirement has advantages of high bearing capacity, size B represents the diameter of crank throw among Fig. 2, and the diameter of first crank throw 3 and second crank throw 4 is 25 millimeters-50 millimeters in the present embodiment, makes jacquard have advantages of high bearing capacity.

Size C represents the axial length of crank throw along bent axle 2 among Fig. 2, and first crank throw 3 and second crank throw 4 are 24 millimeters-40 millimeters along the axial length of bent axle 2 in the present embodiment.

The two ends of bent axle 2 are installed on the frame 1 by the clutch shaft bearing 5 and second bearing 6 respectively, and an end is connected by the output shaft of driving belt 7 with motor 8.As shown in Figure 1, one end of the first connecting rod 9 and first crank 13 is hinged, first crank 13 can the 3rd rotating shaft 19 be that rotate at the center, and the other end of first crank 13 and third connecting rod 15 be hinged, and the third connecting rod 15 and first slide block 17 are hinged by the 7th rotating shaft 23; One end of the second connecting rod 10 and second crank 14 is hinged, second crank 14 can rotate for the center in the 4th rotating shaft 20, and the other end of second crank 14 and the 4th connecting rod 16 are hinged, the 4th connecting rod 16 and second slide block 18 are hinged by the 8th rotating shaft 24, and first slide block 17 and second slide block 18 can be used for producing harness motion.

When bent axle 2 rotates under the drive of motor 8, first crank throw 3 and second crank throw 4 can drive first connecting rod 9 and second connecting rod 10 motions, and first connecting rod 9 is relative with the direction of motion of second connecting rod 10 or on the contrary, can drive first slide blocks 17 and second slide block, 18 generation harness motions by third connecting rod 15 and the 4th connecting rod 16.Bent axle 2 is mechanical parts of comparative maturity, has reduced the cost of jacquard, and can satisfy the demand of high rotating speed air-jet loom.

Claims

1, a kind of jacquard main drive gear, comprise frame (1), slidably be arranged on first slide block (17) and second slide block (18) that described frame (1) went up and be used to produce harness motion, be used to drive the connecting rod that described first slide block (17) and second slide block (18) move, it is characterized in that: described frame (1) goes up the rotatable bent axle (2) that is provided with, have first crank throw (3) and second crank throw (4) on this bent axle (2), described connecting rod comprises first connecting rod (9) that is hinged with first crank throw (3) and the second connecting rod (10) that is hinged with second crank throw (4).

2, jacquard main drive gear according to claim 1 is characterized in that: the phase difference of described first crank throw (3) and second crank throw (4) is 180 °.

3, jacquard main drive gear according to claim 1 is characterized in that: the center line of described first crank throw (3) and second crank throw (4) is 25 millimeters-40 millimeters to the distance of bent axle (2) center line.

4, jacquard main drive gear according to claim 1 is characterized in that: described first crank throw (3) and second crank throw (4) diameter are 25 millimeters-50 millimeters.

5, jacquard main drive gear according to claim 1 is characterized in that: described first crank throw (3) and second crank throw (4) are 24 millimeters-40 millimeters along the axial length of described bent axle (2).

6, jacquard main drive gear according to claim 1 is characterized in that: described bent axle (2) is installed on the described frame (1) by clutch shaft bearing (5) and second bearing (6).

7, jacquard main drive gear according to claim 1 is characterized in that: an end of described bent axle (2) is connected by the output shaft of driving belt (7) with motor (8).