CN215668338U - Electronic drafting three-stage driving gear box mechanism of spinning frame - Google Patents

Abstract

The utility model relates to an electronic drafting three-level driving gearbox mechanism of a spinning frame, which comprises a three-level reduction box body (51), wherein a three-level reduction input shaft (52) penetrates through the three-level reduction box body (51) along the front-back direction, a three-level reduction left output shaft (53) and a three-level reduction right output shaft (54) are respectively arranged on the left side and the right side of the three-level reduction input shaft (52), a three-level reduction intermediate shaft I (55) and a three-level reduction intermediate shaft II (56) are arranged between the three-level reduction input shaft (52) and the three-level reduction left output shaft (53), and a three-level reduction intermediate shaft III (57) and a three-level reduction intermediate shaft IV (58) are arranged between the three-level reduction input shaft (52) and the three-level reduction right output shaft (54). The utility model relates to an electronic drafting three-stage driving gear box mechanism of a spinning frame, which adopts a single shaft to input power, a double shaft to output power after speed reduction, all shafts are arranged in parallel, the structure is compact, and the stress is balanced.

Description

Electronic drafting three-stage driving gear box mechanism of spinning frame

Technical Field

The utility model relates to an electronic drafting three-stage driving gear box mechanism of a spinning machine, and belongs to the technical field of spinning machinery.

Background

A wool spinning ring spinning frame is an important machine in the textile industry, is an important process from rough yarn to spun yarn, and in the spinning process, a drafting transmission system is an important link from rough yarn to spun yarn and is realized by different rotating speeds of front, middle and rear rollers and corresponding leather rollers to clamp fibers. At present, the traditional wool spinning frame adopts mechanical drafting, a main motor drives a spindle through a rolling disc on a main shaft, and the other end drives front, middle and rear rollers at the left and right sides through a series of gear transmissions (including a plurality of drafting conversion gears, twist conversion gears, rear zone drafting conversion gears and the like which are suitable for various spinning processes). When the spinning variety is changed, the machine needs to stop and change various changing gears. The spinning process is formulated by the wool spinning factory according to different requirements of users, and then the corresponding parts are adjusted on the equipment to realize different spinning requirements. The drafting process is a process which is frequently required to be adjusted by a ring spinning frame, and different raw materials and different yarn count requirements can correspond to different drafting processes. In a wool spinning factory, on one hand, spinning varieties are required to be frequently changed according to market requirements, on the other hand, the spinning process is required to be frequently adjusted to meet the requirements of customers according to different requirements of raw materials and users on yarns, and wool spinning is characterized by multiple spinning varieties and small batch, so that the operation of adjusting and changing various change gears is more frequent. Therefore, the electronic drafting of the roller is driven by a servo motor through the speed reduction of the speed reducer. The existing gear transmission has the following defects:

1. the adjustment workload of the drafting process is large;

2. the drafting transmission ratio is limited by the space position, the front roller is generally adjusted by 3-level transmission ratio, the middle roller and the rear roller are adjusted by 7-9-level transmission ratio, and the transmission ratio is 10-50 times;

3. the transmission ratio is improved along with the improvement of the integral level of the textile industry, the requirement on the adjustment precision is also improved, gear adjustment can only be the adjustment of integral number of teeth, the step difference is large, only relatively close gears can be selected, and the requirement on the draft multiple required by the process cannot be completely met;

4. fancy yarns, such as slub yarns, segment-color yarns and other special yarns cannot be spun.

In addition, for the semi-worsted spinning with the fiber raw material length of 45-65 mm used in a wool spinning factory, the center distance of the front and middle rollers is 75mm, and the center distance of the front and middle rollers of normal common wool spinning is 105mm, so that the semi-worsted yarn is difficult to spin by adjusting the roller center distance of most of the existing wool spinning frames.

Patent CN102704059B "transmission device of wool spinning frame" discloses a technical scheme of electronic drafting transmission device, which can solve some of the above problems, but still has a big problem: 1. because the torque required by the wool spinning drafting is very large (one time larger than that of a cotton spinning frame with the same spindle number), the whole spinning frame of the scheme adopts up to 9 synchronous belts to participate in transmission, particularly the rear stage, so that the service life of the synchronous belts is great; 2. a standard commercial gearbox is adopted for primary speed reduction, so that the structure is large; 3. the rear roller still adopts the traditional gear drive to change the rear zone draft multiple, does not realize the electronic draft of the whole vehicle, can not spin fancy yarn, such as special yarn of slub yarn, segment color yarn, etc.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing the electronic drafting three-stage driving gear box mechanism of the spinning frame, which has balanced stress, compact structure and single input and double output aiming at the prior art.

The technical scheme adopted by the utility model for solving the problems is as follows: a three-level driving gear box mechanism for electronic drafting of a spinning frame comprises a three-level reduction box body, wherein a three-level reduction input shaft penetrates through the three-level reduction box body along the front-back direction, a three-level reduction left output shaft and a three-level reduction right output shaft are respectively arranged on the left side and the right side of the three-level reduction input shaft, a three-level reduction intermediate shaft I and a three-level reduction intermediate shaft II are arranged between the three-level reduction input shaft and the three-level reduction left output shaft, a three-level reduction intermediate shaft III and a three-level reduction intermediate shaft IV are arranged between the three-level reduction input shaft and the three-level reduction right output shaft, the three-level reduction input shaft is connected with the three-level reduction intermediate shaft I or the three-level reduction intermediate shaft III through a three-level reduction gear pair, the three-level reduction intermediate shaft II is connected with the three-level reduction left output shaft through a three-level reduction gear pair, the first third-stage reduction intermediate shaft is connected with the third-stage reduction intermediate shaft through a third reduction gear pair in a four-phase mode, the third-stage reduction intermediate shaft is connected with the fourth third-stage reduction intermediate shaft through a fifth third reduction gear pair, and the fourth third-stage reduction intermediate shaft is connected with the right output shaft of the third-stage reduction gear pair in a six-phase mode through a sixth reduction gear pair.

Optionally, the third-stage speed reduction input shaft is located above the first third-stage speed reduction intermediate shaft.

Optionally, the transmission ratio of the third reduction gear pair is 1: 1.

Optionally, the third reduction gear pair has the same transmission ratio as the third reduction gear pair, and the third reduction gear pair has the same transmission ratio as the sixth reduction gear pair.

Optionally, the front end of the third-stage speed reduction input shaft extends out of the third-stage speed reduction box body.

Optionally, the rear ends of the three-stage speed reduction left output shaft and the three-stage speed reduction right output shaft extend out of the three-stage speed reduction box body.

Optionally, the three-level speed reduction left output shaft, the three-level speed reduction right output shaft, the three-level speed reduction intermediate shaft I, the three-level speed reduction intermediate shaft II, the three-level speed reduction intermediate shaft III and the three-level speed reduction intermediate shaft IV are approximately located on the same horizontal plane.

Optionally, the three-stage speed reduction input shaft is located above or below the horizontal plane.

Compared with the prior art, the utility model has the advantages that:

1. the utility model inputs power by a single shaft, outputs power after the speed of the double shaft is reduced, and has compact structure and balanced stress because all the shafts are arranged in parallel;

2. the output shafts are symmetrically arranged at the left side and the right side of the corresponding front surface of the reduction box body, and the left output shaft and the right output shaft have opposite rotation directions. The benefits of such a layout are: the synchronous belt is convenient to replace, and the condition that lubricating oil of a transmission gear on the output side pollutes the synchronous belt can be avoided;

3. the utility model adopts three-stage speed reduction, the reduction ratio can reach 18-25 times, the requirement of the wool spinning electronic drafting reduction ratio can be met, and the mechanical transmission efficiency of the gear reduction box can reach 94-96%;

4. the utility model adopts the independent fully-sealed reduction box body, can protect the parts of the internal gear, enables the gear to run in a closed environment without being influenced by external impurities, and simultaneously reduces the external cleaning and maintenance work;

5. the utility model has the characteristics of compact structure, small occupied space, easy oil filling, oil changing and installation, convenient maintenance, high cost performance and no daily maintenance.

Drawings

Fig. 1 is a schematic perspective view of an electronic drafting driving mechanism of a spinning frame according to the present invention.

Fig. 2 is a schematic perspective view of another view angle of the electronic drafting driving mechanism of the spinning frame of the present invention.

Fig. 3 is a front view of an electronic drafting driving mechanism of a spinning frame.

Fig. 4 is a right side view of fig. 3.

Fig. 5 is a left side view of fig. 3.

Fig. 6 is a sectional view a-a of fig. 3.

Fig. 7 is a sectional view B-B of fig. 3.

Fig. 8 is a perspective view of the front roller driving gear box in fig. 1.

FIG. 9 is a schematic perspective view of the front roller drive gearbox of FIG. 1 from another perspective.

FIG. 10 is a front view of the front roller drive gearbox of FIG. 1.

Fig. 11 is a cross-sectional view C-C of fig. 10.

FIG. 12 is a front view of the middle or back roller drive gearbox of FIG. 1.

Fig. 13 is a cross-sectional view taken along line D-D of fig. 12.

Fig. 14 is a cross-sectional view E-E of fig. 12.

Fig. 15 is a schematic view of the matching relationship between the carrier gear and the carrier gear rocker arm in fig. 1.

Fig. 16 is a front view of fig. 15.

Fig. 17 is a side view of fig. 16.

Fig. 18 is a rear view of fig. 16.

Fig. 19 is a sectional view F-F of fig. 16.

Fig. 20 is a sectional view taken along line G-G of fig. 16.

Fig. 21 is a schematic structural view of the carrier rocker arm in fig. 15.

Fig. 22 is a cross-sectional view of the carrier gear of fig. 15.

Wherein:

mounting base plate 1

Front row wallboard 2

Rear wall plate 3

Front roller drive gearbox 4

Two-stage reduction box 41

Two-stage reduction input shaft 42

Two-stage speed reduction left output shaft 43

Two stage reduction right output shaft 44

Two-stage speed reduction intermediate shaft I45

Two-stage reduction intermediate shaft II 46

Two-stage speed reduction intermediate shaft III 47

Second reduction gear pair 48

Second reduction gear pair 49

Two-stage reduction gear pair III 410

Two-stage reduction gear pair four 411

Five secondary reduction gear pairs 412

Middle roller driving gear box 5

Three-stage reduction gearbox body 51

Three-stage reduction input shaft 52

Three-stage speed reduction left output shaft 53

Three-stage reduction right output shaft 54

Three-stage speed reduction intermediate shaft I55

Three-stage reduction intermediate shaft II 56

Three-stage reduction intermediate shaft III 57

Three-stage reduction intermediate shaft four 58

Third reduction gear pair one 59

Second three-stage reduction gear pair 510

Third 511 of three-stage reduction gear pair

Fourth 512 of three-stage reduction gear pair

Five-stage reduction gear pair 513

Six 514 three-stage reduction gear pair

Rear roller drive gear box 6

Front roller driving motor 7

Middle roller driving motor 8

Rear roller driving motor 9

Pulley mechanism 10

Synchronous pulley 10.1 of shaft head

Synchronous pulley 10.2 of motor

Synchronous belt 10.3

Front roller 11

Roller coupling 12

Middle roller 13

Rear roller 14

Gap bridge gear transmission mechanism 15

Carrier gear rocker arm support mechanism 151

First spindle gear 152

Second spindle gear 153

Carrier gear rocker 1511

Carrier gear shaft 1512

Carrier gear 1513

Gear body 1513.1

Bearing hole 1513.2

Gear hub 1513.3

Oblique oilhole 1513.4

Spoke groove 1513.5

Rocker arm guide ring 1514

Upper positioning hole 1515

Lower positioning hole 1516

Bolt connection assembly 1517

First connecting bolt 1517.1

Backing ring 1517.2

Gasket 1517.3

Nut 1517.4

Gap axle gear shaft hole 1518

Rocker arm handle 1519

Arc-shaped guide groove 16

Gap bridge gear bearing 17

Oil cup 18

Bearing seal ring 19

And a second attachment bolt 20.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Referring to fig. 1 to 22, the electronic drafting driving mechanism of the spinning frame according to the present invention includes an installation bottom plate 1, a front row wall plate 2 and a rear row wall plate 3 are arranged on the installation bottom plate 1, a front roller driving gear box 4 and a middle roller driving gear box 5 are arranged on the front row wall plate 2, the front roller driving gear box 4 is located below the middle roller driving gear box 5, and a rear roller driving gear box 6 is arranged on the rear row wall plate 3;

the top of the front row of wallboards 2 is provided with a front roller driving motor 7 and a middle roller driving motor 8, a back roller driving motor 9 is arranged below the back roller gear box 6, and the front roller driving motor 7, the middle roller driving motor 8 and the back roller driving motor 9 are respectively connected with the front roller driving gear box 4, the middle roller driving gear box 5 and the back roller driving gear box 6 through a belt wheel mechanism 10;

the front roller driving gear box 4 adopts a second-stage reduction gear box which comprises a second-stage reduction box body 41, a second-stage reduction input shaft 42 penetrates through the second-stage reduction box body 41 along the front-back direction, a second-stage reduction left output shaft 43 and a second-stage reduction right output shaft 44 are respectively arranged on the left side and the right side of the second-stage reduction input shaft 42, a first second-stage reduction intermediate shaft 45 and a second-stage reduction intermediate shaft 46 are arranged between the second-stage reduction input shaft 42 and the second-stage reduction left output shaft 43, the first second-stage reduction intermediate shaft 45 and the second-stage reduction intermediate shaft 46 are arranged in parallel on the left side and the right side, a third second-stage reduction intermediate shaft 47 is arranged between the second-stage reduction input shaft 42 and the second-stage reduction intermediate shaft 45, the first second-stage reduction input shaft 42 and the second-stage reduction intermediate shaft 45 are connected through a first second-stage reduction gear pair 48, and the first second-stage reduction intermediate shaft 45 and the second reduction gear pair 49 are connected through a second reduction gear pair, the second-stage reduction intermediate shaft 46 is connected with the second-stage reduction left output shaft 43 through a second-stage reduction gear pair III 410, the second-stage reduction input shaft 42 is connected with the second-stage reduction intermediate shaft III 47 through a second-stage reduction gear pair IV 411, and the second-stage reduction intermediate shaft III 47 is connected with the second-stage reduction right output shaft 44 through a second-stage reduction gear pair V412;

the transmission ratio of the first secondary reduction gear pair 48 is 1:1, the transmission ratio of the second secondary reduction gear pair 49 is the same as that of the fourth secondary reduction gear pair 411, and the transmission ratio of the third secondary reduction gear pair 410 is the same as that of the fifth secondary reduction gear pair 412;

the front end of the secondary speed reducing input shaft 42 extends out of the secondary speed reducing box body 41, a shaft head synchronous pulley 10.1 is arranged at the front end of the secondary speed reducing input shaft 42, a motor synchronous pulley 10.2 is arranged at the output end of the front roller driving motor 7, and the shaft head synchronous pulley 10.1 is connected with the motor synchronous pulley 10.2 through a synchronous belt 10.3;

the rear ends of the secondary speed reduction left output shaft 43 and the secondary speed reduction right output shaft 44 extend out of the secondary speed reduction box body 41, a left front roller 11 and a right front roller 11 are arranged above the mounting bottom plate 1, and the front ends of the left front roller 11 and the right front roller 11 are respectively connected with the rear ends of the secondary speed reduction left output shaft 43 and the secondary speed reduction right output shaft 44 through roller couplers 12;

the secondary speed reduction input shaft 42, the secondary speed reduction left output shaft 43, the secondary speed reduction right output shaft 44, the primary speed reduction intermediate shaft 45, the secondary speed reduction intermediate shaft II 46 and the secondary speed reduction intermediate shaft III 47 are approximately positioned on the same horizontal plane;

the middle roller driving gear box 5 and the rear roller driving gear box 6 adopt three-stage reduction gear boxes, each three-stage reduction gear box comprises a three-stage reduction box body 51, three-stage reduction input shafts 52 penetrate through the three-stage reduction box body 51 in the front-back direction, a three-stage reduction left output shaft 53 and a three-stage reduction right output shaft 54 are respectively arranged on the left side and the right side of each three-stage reduction input shaft 52, a three-stage reduction intermediate shaft I55 and a three-stage reduction intermediate shaft II 56 are arranged between the three-stage reduction input shafts 52 and the three-stage reduction left output shafts 53, a three-stage reduction intermediate shaft III 57 and a three-stage reduction intermediate shaft IV 58 are arranged between the three-stage reduction input shafts 52 and the three-stage reduction intermediate shaft I55 or the three-stage reduction intermediate shaft III 57, the three-stage reduction input shaft I52 and the three-stage reduction intermediate shaft II 56 are connected through a three-stage reduction gear pair II 510, and the three-stage reduction input shaft I55 and the three-stage reduction intermediate shaft II 56 are connected through a three-stage reduction gear pair II 510 The third-stage reduction intermediate shaft 56 is connected with the third-stage reduction left output shaft 53 through a third-stage reduction gear pair 511, the third-stage reduction intermediate shaft 55 is connected with the third-stage reduction intermediate shaft 57 through a third-stage reduction gear pair 512, the third-stage reduction intermediate shaft 57 is connected with the third-stage reduction intermediate shaft four 58 through a third-stage reduction gear pair five 513, and the third-stage reduction intermediate shaft four 58 is connected with the third-stage reduction right output shaft 54 through a third-stage reduction gear pair six 514;

the three-level speed reduction left output shaft 53, the three-level speed reduction right output shaft 54, the three-level speed reduction intermediate shaft I55, the three-level speed reduction intermediate shaft II 56, the three-level speed reduction intermediate shaft III 57 and the three-level speed reduction intermediate shaft IV 58 are approximately positioned on the same horizontal plane;

the three-stage speed reduction input shaft 52 is positioned above or below the horizontal plane;

the transmission ratio of the fourth reduction gear pair 512 is 1:1, the transmission ratio of the second reduction gear pair 510 is the same as that of the fifth reduction gear pair 513, and the transmission ratio of the third reduction gear pair 511 is the same as that of the sixth reduction gear pair 514;

the front end of the three-stage speed reduction input shaft 52 extends out of the three-stage speed reduction box body 51, a shaft head synchronous pulley 10.1 is arranged at the front end of the three-stage speed reduction input shaft 52, a motor synchronous pulley 10.2 is arranged at the output end of the middle roller driving motor 8 or the rear roller driving motor 9, and a synchronous belt 10.3 is arranged between the shaft head synchronous pulley 10.1 and the motor synchronous pulley 10.2;

the rear ends of the three-level speed reduction left output shaft 53 and the three-level speed reduction right output shaft 54 extend out of the three-level speed reduction box body 51, a left middle roller 13, a right middle roller 13, a left rear roller 14 and a right rear roller 14 are further arranged above the mounting bottom plate 1, and the three-level speed reduction left output shaft 53 and the three-level speed reduction right output shaft 54 are respectively connected with the left middle roller 13, the right middle roller 13 or the left rear roller 14 and the right rear roller 14 through a gap bridge gear transmission mechanism 15;

the intermediate gear transmission mechanism 15 comprises an intermediate gear rocker arm supporting mechanism 151, a first shaft head gear 152 and a second shaft head gear 153, the intermediate gear rocker arm supporting mechanism 151 comprises an intermediate gear rocker arm 1511, the intermediate gear rocker arm 1511 is fixedly arranged on the front-row wall plate 2 or the rear-row wall plate 3, an intermediate gear shaft 1512 penetrates through the intermediate gear rocker arm 1511, an intermediate gear 1513 is arranged on the intermediate gear shaft 1512, the first shaft head gear 152 is arranged on the three-level speed reduction left output shaft 53 or the three-level speed reduction right output shaft 54, the second shaft head gear 153 is arranged on a shaft head of the middle roller 13 or the rear roller 14, and the first shaft head gear 152 and the second shaft head gear 153 are meshed with the intermediate gear 1513;

a rocker guide ring 1514 is arranged on the inner side of the intermediate gear rocker 1511, the rocker guide ring 1514 is sleeved on the three-stage speed reduction left output shaft 53 or the three-stage speed reduction right output shaft 54, an upper positioning hole 1515 and a lower positioning hole 1516 are arranged on the outer side of the intermediate gear rocker 1511, bolt connecting assemblies 1517 are arranged in the upper positioning hole 1515 and the lower positioning hole 1516, and the intermediate gear rocker 1511 is connected with the front wall panel 2 or the rear wall panel 3 through an upper bolt connecting assembly 1517 and a lower bolt connecting assembly 1517;

the rocker arm guide ring 1514, the upper positioning hole 1515 and the lower positioning hole 1516 are arranged in a triangle;

a gap bridge gear shaft hole 1518 is arranged between the rocker arm guide ring 1514 and the lower positioning hole 1516, and the gap bridge gear shaft 1512 is arranged in the gap bridge gear shaft hole 1518 in a penetrating manner;

the rocker arm guide ring 1514, the gap bridge gear shaft hole 1518 and the lower positioning hole 1516 are positioned on the same straight line;

a rocker handle 1519 is arranged outside the upper positioning hole 1515 and extends outwards;

the bolt connection assembly 1517 comprises a first connection bolt 1517.1, and a backing ring 1517.2, a washer 1517.3 and a nut 1517.4 are sequentially arranged on the first connection bolt 1517.1;

an upper arc-shaped guide groove and a lower arc-shaped guide groove 16 are formed in the front row wall plate 2 and the rear row wall plate 3, and the bolt connecting assembly 1517 is arranged in the arc-shaped guide grooves 16;

the intermediate gear 1513 comprises a gear body 1513.1, a bearing hole 1513.2 is formed in the center of the gear body 1513.1, a front intermediate gear bearing 17 and a rear intermediate gear bearing 17 are arranged in the bearing hole 1513.2, a ring of gear hub 1513.3 is arranged on the rear side of the gear body 1513.1, an inclined oil hole 1513.4 is formed in the gear hub 1513.3, the inclined oil hole 1513.4 extends inwards to the position of the intermediate gear bearing 17, and an oil cup 18 is arranged in the inclined oil hole 1513.4;

the front side of the gear body 1513.1 is provided with a ring of spoke grooves 1513.5, wherein the end of the first connecting bolt 1517.1 of one bolt connecting assembly 1517 is aligned with the spoke groove 1513.5;

single-sided bearing seal rings 19 are arranged on the outer sides of the front and rear gap bridge gear bearings 17;

a second connecting bolt 20 penetrates through the center of the intermediate gear shaft 1512, and the intermediate gear 1513 is connected with the intermediate gear rocker 1511 through the second connecting bolt 20.

In addition, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides a tertiary drive gear box mechanism of spinning frame electronic draft which characterized in that: the three-stage speed reduction gearbox comprises a three-stage speed reduction gearbox body (51), wherein a three-stage speed reduction input shaft (52) penetrates through the three-stage speed reduction gearbox body (51) along the front-rear direction, a three-stage speed reduction left output shaft (53) and a three-stage speed reduction right output shaft (54) are respectively arranged on the left side and the right side of the three-stage speed reduction input shaft (52), a three-stage speed reduction intermediate shaft I (55) and a three-stage speed reduction intermediate shaft II (56) are arranged between the three-stage speed reduction input shaft (52) and the three-stage speed reduction left output shaft (53), a three-stage speed reduction intermediate shaft III (57) and a three-stage speed reduction intermediate shaft IV (58) are arranged between the three-stage speed reduction input shaft (52) and the three-stage speed reduction intermediate shaft I (55) or the three-stage speed reduction intermediate shaft III (57) and are connected through a three-stage speed reduction gear pair I (59), and a three-stage speed reduction gear pair II (510) is arranged between the three-stage speed reduction intermediate shaft I (55) and the three-stage speed reduction intermediate shaft II (56) ) The three-stage reduction gearbox is characterized in that the three-stage reduction intermediate shaft II (56) is connected with the three-stage reduction left output shaft (53) through a three-stage reduction gear pair III (511), the three-stage reduction intermediate shaft I (55) is connected with the three-stage reduction intermediate shaft III (57) through a three-stage reduction gear pair IV (512), the three-stage reduction intermediate shaft III (57) is connected with the three-stage reduction intermediate shaft IV (58) through a three-stage reduction gear pair V (513), and the three-stage reduction intermediate shaft IV (58) is connected with the three-stage reduction right output shaft (54) through a three-stage reduction gear pair VI (514).

2. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 1, wherein: the three-stage speed reduction input shaft (52) is positioned above the first three-stage speed reduction intermediate shaft (55).

3. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 1, wherein: the transmission ratio of the third-stage reduction gear pair four (512) is 1: 1.

4. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 1, wherein: the transmission ratio of the second third-stage reduction gear pair (510) is the same as that of the fifth third-stage reduction gear pair (513), and the transmission ratio of the third-stage reduction gear pair (511) is the same as that of the sixth third-stage reduction gear pair (514).

5. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 1, wherein: the front end of the three-stage speed reduction input shaft (52) extends out of the three-stage speed reduction box body (51).

6. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 1, wherein: the rear ends of the three-stage speed reduction left output shaft (53) and the three-stage speed reduction right output shaft (54) extend out of the three-stage speed reduction box body (51).

7. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 1, wherein: the three-stage speed reduction left output shaft (53), the three-stage speed reduction right output shaft (54), the three-stage speed reduction intermediate shaft I (55), the three-stage speed reduction intermediate shaft II (56), the three-stage speed reduction intermediate shaft III (57) and the three-stage speed reduction intermediate shaft IV (58) are approximately positioned on the same horizontal plane.

8. The electronic drafting three-stage driving gear box mechanism of the spinning frame as claimed in claim 7, wherein: the three-stage speed reduction input shaft (52) is positioned above or below the horizontal plane.

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