Electronic drafting drive mechanism for spinning frame

Abstract

The present invention relates to an electronic drafting drive mechanism for a spinning frame, which comprises a mounting base plate (1), a front wall plate (2) and a rear wall plate (3) are arranged on the mounting base plate (1), a front roller driving gear box (4) and a middle roller driving gear box (5) are arranged on the front 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 wall plate (3). The electronic drafting drive mechanism for a spinning frame of the present invention has balanced force and compact structure, realizes electronic drafting of three rows of rollers on both sides of the whole machine through a single-input dual-output gear reduction box arrangement and combination mode, and can spin semi-worsted yarn.

Description

Technical Field

[0001] The invention relates to an electronic drafting drive mechanism of a spinning frame, belonging to the technical field of spinning machinery. Background Art

[0002] The wool spinning ring spinning frame is an important machine in the textile industry. It is an important process to realize the process from roving to fine yarn. In the spinning process, the drafting transmission system is an important link to realize the process from roving to fine yarn. It is realized by the different speeds of the front, middle and rear rollers and the corresponding rollers clamping the fibers. At present, the traditional wool spinning frame adopts mechanical drafting. The main motor drives the spindle through the roller on the main shaft, and the other end drives the front, middle and rear rollers on the left and right sides through a series of gear transmissions (including many drafting change gears suitable for various spinning processes, twist change gears, rear drafting change gears, etc.). When changing the spinning variety, it is necessary to stop and replace various change gears. The wool spinning mill formulates the spinning process according to the different requirements of its users, and then adjusts the corresponding parts on the equipment to achieve different spinning requirements. The drafting process is a process that the ring spinning frame often needs to adjust. Different raw materials and different yarn count requirements will correspond to different drafting processes. In wool spinning mills, on the one hand, the spinning varieties need to be frequently changed according to market demand, and on the other hand, the spinning process needs to be frequently adjusted to meet customer needs according to the different requirements of raw materials and users for yarn. In addition, the characteristics of wool spinning are that there are many spinning varieties and small batches, which makes the adjustment and replacement of various gear changes more frequent. Therefore, it is particularly urgent to use a servo motor to reduce the speed of the roller through a reducer to drive the electronic drafting. Defects of existing gear transmission:

[0003] 1. The workload of drafting process adjustment is large;

[0004] 2. The drafting transmission ratio is limited by the spatial position. Generally, the front roller is adjusted through 3-level transmission ratio, and the middle and rear rollers are adjusted through 7-9-level transmission ratio. The transmission ratio is between 10 and 50 times;

[0005] 3. With the improvement of the overall level of the textile industry, the requirements for adjustment accuracy are also increasing. Gear adjustment can only be an integer number of teeth adjustment, there is a large step difference, and only relatively close gears can be selected, which cannot fully meet the requirements of the drafting multiple required by the process;

[0006] 4. Cannot spin fancy yarns, such as bamboo yarn, segmented colored yarn and other special yarns.

[0007] In addition, for the fiber raw materials used in wool spinning mills with a length of 45 to 65 mm, which is semi-worsted, the center distance of the front middle roller is 75 mm, while the center distance of the front middle roller in normal ordinary wool spinning is 105 mm. This makes it difficult to adjust the roller center distance of most current wool spinning machines to produce semi-worsted yarn.

[0008] Patent CN102704059B "Transmission device of wool spinning frame" discloses a technical solution of electronic drafting transmission device which can solve some of the above problems, but there are still major problems: 1. Because the torque required for wool spinning drafting is very large (twice as large as that of cotton spinning frame with the same number of spindles), the whole machine of this solution uses up to 9 synchronous belts to participate in the transmission, especially the rear stage, which makes the service life of the synchronous belt worrying; 2. A standard commercial gear box is used for one-stage deceleration, and the structure is huge; 3. The rear roller still uses traditional gear transmission to change the drafting multiple of the rear zone, and the electronic drafting of the whole machine is not realized, and fancy yarns cannot be spun, such as bamboo yarn, segment color yarn and other special yarns. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide an electronic drafting drive mechanism for a spinning frame in response to the above-mentioned prior art. The mechanism has balanced force and compact structure, and can realize electronic drafting of three rows of rollers on both sides of the entire machine through a single-input and dual-output gear reducer arrangement and combination, and can spin semi-worsted yarn.

[0010] The technical solution adopted by the present invention to solve the above-mentioned problem is: an electronic drafting drive mechanism of a spinning frame, which includes a mounting base plate, a front wall panel and a rear wall panel are arranged on the mounting base plate, a front roller drive gear box and a middle roller drive gear box are arranged on the front wall panel, the front roller drive gear box is located below the middle roller drive gear box, and a rear roller drive gear box is arranged on the rear wall panel.

[0011] Optionally, a front roller drive motor and a middle roller drive motor are arranged on the top of the front row of wall panels, and a rear roller drive motor is arranged under the rear roller gear box. The front roller drive motor, the middle roller drive motor and the rear roller drive motor are respectively connected to the front roller drive gear box, the middle roller drive gear box and the rear roller drive gear box through a synchronous belt pulley mechanism.

[0012] Optionally, the front roller driving gearbox adopts a two-stage reduction gearbox, the two-stage reduction gearbox includes a two-stage reduction housing, the two-stage reduction housing is provided with a two-stage reduction input shaft along the front-to-back direction, a two-stage reduction left output shaft and a two-stage reduction right output shaft are respectively provided on the left and right sides of the two-stage reduction input shaft, a two-stage reduction intermediate shaft one and a two-stage reduction intermediate shaft two are provided between the two-stage reduction input shaft and the two-stage reduction left output shaft, the two-stage reduction intermediate shaft one and the two-stage reduction intermediate shaft two are arranged in parallel on the left and right sides, a two-stage reduction intermediate shaft three is provided between the two-stage reduction input shaft and the two-stage reduction right output shaft, the two-stage reduction input shaft is connected to the two-stage reduction intermediate shaft one through a two-stage reduction gear pair one, the two-stage reduction intermediate shaft one is connected to the two-stage reduction intermediate shaft two through a two-stage reduction gear pair two, the two-stage reduction intermediate shaft two is connected to the two-stage reduction left output shaft through a two-stage reduction gear pair three, the two-stage reduction input shaft is connected to the two-stage reduction intermediate shaft three through a two-stage reduction gear pair four, and the two-stage reduction intermediate shaft three is connected to the two-stage reduction right output shaft through a two-stage reduction gear pair five.

[0013] Optionally, the rear ends of the secondary reduction left output shaft and the secondary reduction right output shaft extend out of the secondary reduction case, and two left and right front rollers are arranged above the mounting base plate. The front ends of the left and right front rollers are respectively connected to the rear ends of the secondary reduction left output shaft and the secondary reduction right output shaft through roller couplings.

[0014] Optionally, the middle roller driving gearbox and the rear roller driving gearbox adopt a three-stage reduction gearbox, the three-stage reduction gearbox includes a three-stage reduction case body, a three-stage reduction input shaft is installed in the three-stage reduction case body along the front-to-back direction, a three-stage reduction left output shaft and a three-stage reduction right output shaft are respectively arranged on the left and right sides of the three-stage reduction input shaft, a three-stage reduction intermediate shaft one and a three-stage reduction intermediate shaft two are arranged between the three-stage reduction input shaft and the three-stage reduction left output shaft, a three-stage reduction intermediate shaft three and a three-stage reduction intermediate shaft four are arranged between the three-stage reduction input shaft and the three-stage reduction right output shaft, and the three-stage reduction input shaft is connected to the three-stage reduction input shaft. The reduction intermediate shaft one or the three-stage reduction intermediate shaft three is connected through the three-stage reduction gear pair one, the three-stage reduction intermediate shaft one is connected with the three-stage reduction intermediate shaft two through the three-stage reduction gear pair two, the three-stage reduction intermediate shaft two and the three-stage reduction left output shaft are connected through the three-stage reduction gear pair three, the three-stage reduction intermediate shaft one is connected with the three-stage reduction intermediate shaft three through the three-stage reduction gear pair four, the three-stage reduction intermediate shaft three and the three-stage reduction intermediate shaft four are connected through the three-stage reduction gear pair five, and the three-stage reduction intermediate shaft four is connected with the three-stage reduction right output shaft through the three-stage reduction gear pair six.

[0015] Optionally, the rear ends of the three-stage reduction left output shaft and the three-stage reduction right output shaft extend out of the three-stage reduction housing, and two left and right middle rollers and two left and right rear rollers are also arranged above the mounting base plate. The three-stage reduction left output shaft and the three-stage reduction right output shaft are respectively connected to the left and right middle rollers or the left and right rear rollers through a bridge gear transmission mechanism.

[0016] Optionally, the bridge gear transmission mechanism includes a bridge gear rocker arm support mechanism, a first shaft head gear and a second shaft head gear, the bridge gear rocker arm support mechanism includes a bridge gear rocker arm, the bridge gear rocker arm is fixedly mounted on the front wall panel or the rear wall panel, the bridge gear rocker arm is equipped with a bridge gear shaft, the bridge gear shaft is provided with a bridge gear, the first shaft head gear is arranged on the left output shaft of the three-stage reduction or the right output shaft of the three-stage reduction, the second shaft head gear is arranged on the middle roller or the rear roller, and the first shaft head gear and the second shaft head gear are both meshed with the bridge gear.

[0017] Optionally, a rocker guide ring is provided on the inner side of the bridge gear rocker arm, and the rocker guide ring is mounted on the left output shaft of the three-stage reduction or the right output shaft of the three-stage reduction. An upper positioning hole and a lower positioning hole are provided on the outer side of the bridge gear rocker arm, and bolt connection assemblies are provided in the upper and lower positioning holes. The bridge gear rocker arm is connected to the front wall panel or the rear wall panel through the upper and lower sets of bolt connection assemblies.

[0018] Optionally, a rocker handle is provided extending outwardly from the outer side of the upper positioning hole.

[0019] Optionally, two upper and lower arc-shaped guide grooves are formed on the front wall panels and the rear wall panels, and the bolt connection assembly is arranged in the arc-shaped guide grooves.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1. The electronic drafting transmission system of the present invention has balanced force and compact structure. The electronic drafting of the three-row rollers on both sides of the whole machine is realized by the arrangement and combination of the single-input and dual-output gear reducer. The center distance adjustment range of the front and middle rollers is large. It can not only spin long-fiber wool yarn, but also spin relatively short-fiber semi-worsted yarn;

[0022] 2. The present invention adopts three independent fully sealed reduction gearboxes, namely, the front roller driving gearbox, the middle roller driving gearbox and the rear roller driving gearbox. The gearbox group is arranged in two rows, front and back, which leaves enough operating space for the large space occupied mechanism of the servo motor driving the input shaft of the gearbox through the synchronous belt and the driving and supporting mechanisms for adjusting the center distance of the front and middle rollers. This not only makes the structure of the entire electronic drafting mechanism compact, but also makes it more flexible and convenient to adjust (the frequency of the center distance between the front and rear rollers of the rear rollers that needs to be adjusted when spinning different fiber varieties and counts is high, and its gearbox is placed in the rear row position close to the rear of the vehicle for easy operation and adjustment);

[0023] 3. The front roller drive reduction box of the present invention has 6 shafts inside, which are divided into two-stage gear reduction, with a reduction ratio of 6 to 8 times; the middle and rear roller drive gear boxes have 7 shafts inside, which are divided into three-stage gear reduction, with a reduction ratio of 18 to 25 times, and the internal structure is roughly the same. The input shafts of the three independent fully sealed reduction boxes are all output from the middle part of the gear reduction box cover, and the shaft heads can be installed with synchronous pulleys; the output shafts of the gear box are symmetrically arranged on the left and right sides of the front corresponding to the gear reduction box body and the box cover, and the left and right output shafts turn in opposite directions, which can meet the steering requirements of each row of rollers. The advantages of this layout are: it is convenient to replace the synchronous belt, and it can avoid the transmission gear lubricating oil on the output side from contaminating the synchronous belt;

[0024] 4. The three independent fully sealed reduction gearboxes of the present invention are equipped with three servo motors, so that each reduction gearbox is assigned to a servo motor, and each drives the input shaft of its reduction gearbox through a synchronous pulley to provide power to the reduction gearbox. The three servo motors and synchronous pulleys and synchronous belts can adopt the same configuration, which is convenient for interchangeability and has a relatively low cost;

[0025] 5. For the wool spinning frame of the present invention, the center distance and height of the left and right front rollers are generally fixed, so the left and right output shafts of the front roller driving gear box are connected to the left and right corresponding front rollers through a coupling to drive the front roller; the left and right output shafts of the middle and rear roller driving gear boxes are respectively equipped with gears, and the shaft head gears of the middle and rear rollers on the left and right sides are respectively connected through the bridge gears installed on their respective rocker arms to drive the middle and rear rollers; for the rear rollers, the advantage of adopting such a layout is that the wool spinning frame can be adjusted according to the raw materials and length of the spinning Due to the difference in the amount of roving, etc., it is often necessary to adjust the center distance of the front and rear rollers. The rear roller shaft head gear after the position is adjusted by meshing the bridge gear installed on the rocker arm can meet the requirements of transmitting driving force; and the reason for using the same structure as the rear roller for the middle roller is: it can increase the adjustment range of the center distance between the front roller and the middle roller, increase the spinning range of the wool spinning frame, and the length range of the spun fiber is bounded by the semi-worsted cashmere products between the cotton spinning frame and the wool spinning frame, thereby increasing the added value of the wool spinning frame. The rocker arm is connected to the bridge gear meshing output shaft head gear and the roller shaft head gear mechanism to transmit power, which can not only increase the adjustment range of the roller center distance, but also make the adjustment convenient and quick. If the peripheral parts are configured exactly the same, they can also be easily interchangeable, and the cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a three-dimensional structural schematic diagram of an electronic drafting drive mechanism of a spinning frame.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the electronic drafting drive mechanism of a spinning frame from another perspective of the present invention.

[0028] Figure 3 The present invention is a front view of an electronic drafting drive mechanism of a spinning frame.

[0029] Figure 4 for Figure 3 Right view of .

[0030] Figure 5 for Figure 3 Left view of .

[0031] Figure 6 for Figure 3 AA section view.

[0032] Figure 7 for Figure 3 BB cross-sectional view.

[0033] Figure 8 for Figure 1 Schematic diagram of the three-dimensional structure of the middle front roller drive gearbox.

[0034] Fig. 9for Figure 1 Schematic diagram of the three-dimensional structure of the middle front roller drive gearbox from another perspective.

[0035] Fig.10 for Figure 1 Front view of the center front roller drive gearbox.

[0036] Fig.11 for Fig.10 CC cross-sectional view.

[0037] Fig.12 for Figure 1 Front view of the middle roller drive gearbox or the rear roller drive gearbox.

[0038] Fig.13 for Fig.12 DD cross-sectional view.

[0039] Fig.14 for Fig.12 EE cross-sectional view.

[0040] Fig.15 for Figure 1 Schematic diagram of the matching relationship between the middle bridge gear and the bridge gear rocker arm.

[0041] Fig.16 for Fig.15 Front view of .

[0042] Fig.17 for Fig.16 Side view of.

[0043] Fig.18 for Fig.16 Rear view of.

[0044] Fig.19 for Fig.16 FF cross-sectional view.

[0045] Fig. 20 for Fig.16 GG cross-sectional view.

[0046] Fig.21 for Fig.15 Schematic diagram of the structure of the middle bridge gear rocker arm.

[0047] Fig. 22 for Fig.15 Cross-sectional view of the intermediate gear.

[0048] in:

[0049] Install the base plate 1

[0050] Front wall panel 2

[0051] Rear wall panel 3

[0052] Front roller drive gearbox 4

[0053] Secondary reduction box 41

[0054] Secondary reduction input shaft 42

[0055] Secondary reduction left output shaft 43

[0056] Secondary reduction right output shaft 44

[0057] Secondary reduction intermediate shaft 45

[0058] Secondary reduction intermediate shaft 246

[0059] Secondary reduction intermediate shaft 347

[0060] Secondary reduction gear pair 48

[0061] Secondary reduction gear pair 2 49

[0062] Secondary reduction gear pair 3 410

[0063] Secondary reduction gear pair 411

[0064] Secondary reduction gear pair 5412

[0065] Middle roller drive gearbox 5

[0066] Three-stage reduction box 51

[0067] Three-stage reduction input shaft 52

[0068] Three-stage reduction left output shaft 53

[0069] Three-stage reduction right output shaft 54

[0070] Three-stage reduction intermediate shaft 55

[0071] Three-stage reduction intermediate shaft 256

[0072] Three-stage reduction intermediate shaft 357

[0073] Three-stage reduction intermediate shaft 458

[0074] Three-stage reduction gear pair 159

[0075] Three-stage reduction gear pair 2 510

[0076] Three-stage reduction gear pair 3 511

[0077] Three-stage reduction gear pair 4 512

[0078] Three-stage reduction gear pair 513

[0079] Three-stage reduction gear pair 6514

[0080] Rear roller drive gearbox 6

[0081] Front roller drive motor 7

[0082] Middle roller drive motor 8

[0083] Rear roller drive motor 9

[0084] Pulley mechanism 10

[0085] Shaft head synchronous pulley 10.1

[0086] Motor synchronous pulley 10.2

[0087] Synchronous belt 10.3

[0088] Front roller 11

[0089] Roller coupling 12

[0090] Middle roller 13

[0091] Rear roller 14

[0092] Bridge gear transmission mechanism 15

[0093] Bridge gear rocker arm support mechanism 151

[0094] First shaft head gear 152

[0095] Second shaft head gear 153

[0096] Bridge gear rocker arm 1511

[0097] Bridge gear shaft 1512

[0098] Bridge gear 1513

[0099] Gear body 1513.1

[0100] Bearing hole 1513.2

[0101] Gear Hub 1513.3

[0102] Inclined oil hole 1513.4

[0103] Spoke groove 1513.5

[0104] Rocker arm guide ring 1514

[0105] Upper positioning hole 1515

[0106] Lower positioning hole 1516

[0107] Bolt connection assembly 1517

[0108] First connecting bolt 1517.1

[0109] Gasket 1517.2

[0110] Washer 1517.3

[0111] Nut 1517.4

[0112] Bridge gear shaft hole 1518

[0113] Rocker handle 1519

[0114] Arc guide groove 16

[0115] Bridge gear bearing 17

[0116] Oil cup 18

[0117] Bearing seal 19

[0118] Second connecting bolt 20 . DETAILED DESCRIPTION

[0119] The present invention is further described in detail below with reference to the accompanying drawings.

[0120] See also Figure 1 to Figure 22 The present invention relates to an electronic drafting drive mechanism of a spinning frame, which comprises a mounting base plate 1, on which a front wall plate 2 and a rear wall plate 3 are arranged, on which a front roller driving gear box 4 and a middle roller driving gear box 5 are arranged, the front roller driving gear box 4 is located below the middle roller driving gear box 5, and on which a rear roller driving gear box 6 is arranged on the rear wall plate 3;

[0121] A front roller drive motor 7 and a middle roller drive motor 8 are provided on the top of the front row wall panel 2, and a rear roller drive motor 9 is provided below the rear roller gear box 6. The front roller drive motor 7, the middle roller drive motor 8 and the rear roller drive motor 9 are connected to the front roller drive gear box 4, the middle roller drive gear box 5 and the rear roller drive gear box 6 respectively through a pulley mechanism 10;

[0122] The front roller driving gearbox 4 adopts a two-stage reduction gearbox, and the two-stage reduction gearbox includes a two-stage reduction housing 41, and the two-stage reduction housing 41 is provided with a two-stage reduction input shaft 42 along the front-to-back direction, and the left and right sides of the two-stage reduction input shaft 42 are respectively provided with a two-stage reduction left output shaft 43 and a two-stage reduction right output shaft 44, and a two-stage reduction intermediate shaft 1 45 and a two-stage reduction intermediate shaft 2 46 are provided between the two-stage reduction input shaft 42 and the two-stage reduction left output shaft 43, and the two-stage reduction intermediate shaft 1 45 and the two-stage reduction intermediate shaft 2 46 are arranged in parallel on the left and right sides, and a two-stage reduction input shaft 42 and a two-stage reduction right output shaft 44 are provided between the two-stage reduction input shaft 42 and the two-stage reduction left output shaft 43. The secondary reduction intermediate shaft three 47, the secondary reduction input shaft 42 is connected to the secondary reduction intermediate shaft one 45 via the secondary reduction gear pair one 48, the secondary reduction intermediate shaft one 45 is connected to the secondary reduction intermediate shaft two 46 via the secondary reduction gear pair two 49, the secondary reduction intermediate shaft two 46 is connected to the secondary reduction left output shaft 43 via the secondary reduction gear pair three 410, the secondary reduction input shaft 42 is connected to the secondary reduction intermediate shaft three 47 via the secondary reduction gear pair four 411, the secondary reduction intermediate shaft three 47 is connected to the secondary reduction right output shaft 44 via the secondary reduction gear pair five 412;

[0123] The transmission ratio of the secondary reduction gear pair 1 48 is 1:1, the transmission ratio of the secondary reduction gear pair 2 49 is the same as that of the secondary reduction gear pair 411, and the transmission ratio of the secondary reduction gear pair 3 410 is the same as that of the secondary reduction gear pair 5 412;

[0124] The front end of the secondary reduction input shaft 42 extends out of the secondary reduction housing 41, and a shaft head synchronous belt pulley 10.1 is arranged at the front end of the secondary reduction input shaft 42, and a motor synchronous belt pulley 10.2 is arranged at the output end of the front roller driving motor 7, and the shaft head synchronous belt pulley 10.1 and the motor synchronous belt pulley 10.2 are connected by a synchronous belt 10.3;

[0125] The rear ends of the secondary reduction left output shaft 43 and the secondary reduction right output shaft 44 extend out of the secondary reduction housing 41, and the left and right front rollers 11 are arranged above the mounting base plate 1, and the front ends of the left and right front rollers 11 are connected to the rear ends of the secondary reduction left output shaft 43 and the secondary reduction right output shaft 44 through roller couplings 12 respectively;

[0126] The secondary reduction input shaft 42, the secondary reduction left output shaft 43, the secondary reduction right output shaft 44, the secondary reduction intermediate shaft 1 45, the secondary reduction intermediate shaft 2 46 and the secondary reduction intermediate shaft 3 47 are substantially located on the same horizontal plane;

[0127] The middle roller driving gearbox 5 and the rear roller driving gearbox 6 adopt a three-stage reduction gearbox, which includes a three-stage reduction housing 51, in which a three-stage reduction input shaft 52 is installed along the front-to-back direction, and a three-stage reduction left output shaft 53 and a three-stage reduction right output shaft 54 ​​are respectively arranged on the left and right sides of the three-stage reduction input shaft 52, a three-stage reduction intermediate shaft 1 55 and a three-stage reduction intermediate shaft 2 56 are arranged between the three-stage reduction input shaft 52 and the three-stage reduction left output shaft 53, a three-stage reduction intermediate shaft 3 57 and a three-stage reduction intermediate shaft 4 58 are arranged between the three-stage reduction input shaft 52 and the three-stage reduction right output shaft 54, and the three-stage reduction input shaft 52 and the three-stage reduction intermediate shaft 1 are arranged. The third-stage reduction intermediate shaft 55 or the third-stage reduction intermediate shaft 57 is connected through the third-stage reduction gear pair 1 59, the third-stage reduction intermediate shaft 1 55 and the third-stage reduction intermediate shaft 2 56 are connected through the third-stage reduction gear pair 2 510, the third-stage reduction intermediate shaft 2 56 and the third-stage reduction left output shaft 53 are connected through the third-stage reduction gear pair 3 511, the third-stage reduction intermediate shaft 1 55 and the third-stage reduction intermediate shaft 3 57 are connected through the third-stage reduction gear pair 4 512, the third-stage reduction intermediate shaft 3 57 and the third-stage reduction intermediate shaft 4 58 are connected through the third-stage reduction gear pair 513, and the third-stage reduction intermediate shaft 4 58 and the third-stage reduction right output shaft 54 ​​are connected through the third-stage reduction gear pair 6 514;

[0128] The three-stage reduction input shaft 52 is located above the three-stage reduction intermediate shaft 1 55;

[0129] The transmission ratio of the third-stage reduction gear pair 4 512 is 1:1, the transmission ratio of the third-stage reduction gear pair 2 510 is the same as that of the third-stage reduction gear pair 513, and the transmission ratio of the third-stage reduction gear pair 3 511 is the same as that of the third-stage reduction gear pair 6 514;

[0130] The front end of the three-stage reduction input shaft 52 extends out of the three-stage reduction housing 51, and the front end of the three-stage reduction input shaft 52 is provided with a shaft head synchronous belt pulley 10.1, and the output end of the middle roller driving motor 8 or the rear roller driving motor 9 is provided with a motor synchronous belt pulley 10.2, and a synchronous belt 10.3 is provided between the shaft head synchronous belt pulley 10.1 and the motor synchronous belt pulley 10.2;

[0131] The rear ends of the three-stage reduction left output shaft 53 and the three-stage reduction right output shaft 54 ​​extend out of the three-stage reduction housing 51. The upper portion of the mounting base plate 1 is also provided with left and right middle rollers 13 and left and right rear rollers 14. The three-stage reduction left output shaft 53 and the three-stage reduction right output shaft 54 ​​are respectively connected to the left and right middle rollers 13 or the left and right rear rollers 14 through a bridge gear transmission mechanism 15.

[0132] The bridge gear transmission mechanism 15 includes a bridge gear rocker arm support mechanism 151, a first shaft head gear 152 and a second shaft head gear 153. The bridge gear rocker arm support mechanism 151 includes a bridge gear rocker arm 1511. The bridge gear rocker arm 1511 is fixedly arranged on the front wall panel 2 or the rear wall panel 3. The bridge gear rocker arm 1511 is provided with a bridge gear shaft 1512. The bridge gear shaft 1512 is provided with a bridge gear 1513. The first shaft head gear 152 is arranged on the three-stage reduction left output shaft 53 or the three-stage reduction right output shaft 54. The second shaft head gear 153 is arranged on the shaft head of the middle roller 13 or the rear roller 14. The first shaft head gear 152 and the second shaft head gear 153 are both meshed with the bridge gear 1513.

[0133] A rocker guide ring 1514 is provided inside the bridge gear rocker arm 1511, and the rocker guide ring 1514 is sleeved on the three-stage reduction left output shaft 53 or the three-stage reduction right output shaft 54. An upper positioning hole 1515 and a lower positioning hole 1516 are provided outside the bridge gear rocker arm 1511, and bolt connection components 1517 are provided in the upper positioning hole 1515 and the lower positioning hole 1516. The bridge gear rocker arm 1511 is connected to the front wall panel 2 or the rear wall panel 3 through the upper and lower sets of bolt connection components 1517;

[0134] The rocker arm guide ring 1514, the upper positioning hole 1515 and the lower positioning hole 1516 are arranged in a triangle;

[0135] A bridge gear shaft hole 1518 is provided between the rocker arm guide ring 1514 and the lower positioning hole 1516, and the bridge gear shaft 1512 is installed in the bridge gear shaft hole 1518;

[0136] The rocker arm guide ring 1514, the bridge gear shaft hole 1518 and the lower positioning hole 1516 are located on the same straight line;

[0137] A rocker handle 1519 is provided extending outwardly from the outer side of the upper positioning hole 1515;

[0138] The bolt connection assembly 1517 comprises a first connection bolt 1517.1, on which a washer 1517.2, a washer 1517.3 and a nut 1517.4 are sequentially arranged;

[0139] The front wall panels 2 and the rear wall panels 3 are provided with two upper and lower arc-shaped guide grooves 16, and the bolt connection assembly 1517 is arranged in the arc-shaped guide grooves 16;

[0140] The bridge gear 1513 comprises a gear body 1513.1, a bearing hole 1513.2 is provided at the center of the gear body 1513.1, two front and rear bridge gear bearings 17 are arranged in the bearing hole 1513.2, a circle of gear hub 1513.3 is arranged at the rear side of the gear body 1513.1, an oblique oil hole 1513.4 is provided on the gear hub 1513.3, the oblique oil hole 1513.4 extends inwardly to the position of the bridge gear bearing 17, and an oil cup 18 is arranged in the oblique oil hole 1513.4;

[0141] The front side of the gear body 1513.1 is provided with a circle of spoke plate grooves 1513.5, and the end of a first connection bolt 1517.1 of a bolt connection assembly 1517 is aligned with the spoke plate groove 1513.5;

[0142] The outer sides of the front and rear two bridge gear bearings 17 are both provided with single-sided bearing seal rings 19;

[0143] A second connecting bolt 20 is passed through the center of the bridge gear shaft 1512 , and the bridge gear 1513 is connected to the bridge gear rocker arm 1511 through the second connecting bolt 20 .

[0144] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. An electronic drafting drive mechanism for a spinning frame, characterized in that: It comprises a mounting base plate (1), a front row wall plate (2) and a rear row wall plate (3) being arranged on the mounting base plate (1), a front roller driving gear box (4) and a middle roller driving gear box (5) being arranged on the front row wall plate (2), the front roller driving gear box (4) being located below the middle roller driving gear box (5), and a rear roller driving gear box (6) being arranged on the rear row wall plate (3); A front roller drive motor (7) and a middle roller drive motor (8) are arranged on the top of the front wall panel (2); a rear roller drive motor (9) is arranged below the rear roller drive gear box (6); the front roller drive motor (7), the middle roller drive motor (8) and the rear roller drive motor (9) are respectively connected to the front roller drive gear box (4), the middle roller drive gear box (5) and the rear roller drive gear box (6) via a pulley mechanism (10); The middle roller driving gearbox (5) and the rear roller driving gearbox (6) adopt a three-stage reduction gearbox, the three-stage reduction gearbox comprising a three-stage reduction housing (51), a three-stage reduction input shaft (52) being installed in the three-stage reduction housing (51) along the front-rear direction, a three-stage reduction left output shaft (53) and a three-stage reduction right output shaft (54) being arranged on the left and right sides of the three-stage reduction input shaft (52), a three-stage reduction intermediate shaft one (55) and a three-stage reduction intermediate shaft two (56) being arranged between the three-stage reduction input shaft (52) and the three-stage reduction left output shaft (53), a three-stage reduction intermediate shaft three (57) and a three-stage reduction intermediate shaft four (58) being arranged between the three-stage reduction input shaft (52) and the three-stage reduction right output shaft (54), and the three-stage reduction input shaft (52) and the three-stage reduction input shaft (52) are connected to each other. The first and second speed intermediate shafts (55) are connected via a three-stage reduction gear pair 1 (59); the first and second speed intermediate shafts (55) are connected to the second speed intermediate shaft (56) via a three-stage reduction gear pair 2 (510); the second and second speed intermediate shafts (56) are connected to the left speed reduction output shaft (53) via a three-stage reduction gear pair 3 (511); the first and second speed intermediate shafts (55) are connected to the third speed reduction intermediate shaft (57) via a three-stage reduction gear pair 4 (512); the third speed reduction intermediate shaft (57) and the third speed reduction intermediate shaft (58) are connected via a three-stage reduction gear pair 5 (513); and the third speed reduction intermediate shaft (58) is connected to the right speed reduction output shaft (54) via a three-stage reduction gear pair 6 (514); The rear ends of the three-stage reduction left output shaft (53) and the three-stage reduction right output shaft (54) extend out of the three-stage reduction housing (51); two left and right middle rollers (13) and two left and right rear rollers (14) are also arranged above the mounting base plate (1); the three-stage reduction left output shaft (53) and the three-stage reduction right output shaft (54) are respectively connected to the two left and right middle rollers (13) via a bridge gear transmission mechanism (15); and the three-stage reduction left output shaft (53) and the three-stage reduction right output shaft (54) are respectively connected to the two left and right rear rollers (14) via a bridge gear transmission mechanism (15); Each bridge gear transmission mechanism (15) comprises a bridge gear rocker arm support mechanism (151), a first shaft head gear (152) and a second shaft head gear (153); the bridge gear rocker arm support mechanism (151) comprises a bridge gear rocker arm (1511); the bridge gear rocker arm (1511) is fixedly arranged on the front wallboard (2) and the rear wallboard (3); a bridge gear shaft (1512) is mounted on the bridge gear rocker arm (1511); a bridge gear (1513) is arranged on the bridge gear shaft (1512); the first shaft head gear (152) is arranged on a three-stage reduction left output shaft (53) and a three-stage reduction right output shaft (54); the second shaft head gear (153) is arranged on the middle roller (13) and the rear roller (14); the first shaft head gear (152) and the second shaft head gear (153) are both meshed with the bridge gear (1513); A rocker arm guide ring (1514) is provided on the inner side of the bridge gear rocker arm (1511), and the rocker arm guide ring (1514) is sleeved on the three-stage reduction left output shaft (53) and the three-stage reduction right output shaft (54). An upper positioning hole (1515) and a lower positioning hole (1516) are provided on the outer side of the bridge gear rocker arm (1511), and bolt connection assemblies (1517) are provided in the upper positioning hole (1515) and the lower positioning hole (1516). The bridge gear rocker arm (1511) is connected to the front wall panel (2) and the rear wall panel (3) via two sets of upper and lower bolt connection assemblies (1517); A rocker handle (1519) is provided extending outwardly from the outer side of the upper positioning hole (1515); The front row wall panels (2) and the rear row wall panels (3) are provided with two upper and lower arc-shaped guide grooves (16), and the bolt connection components (1517) are arranged in the arc-shaped guide grooves (16).

2. The electronic drafting drive mechanism of a spinning frame according to claim 1, characterized in that: The front roller driving gearbox (4) adopts a two-stage reduction gearbox, the two-stage reduction gearbox comprising a two-stage reduction housing (41), the two-stage reduction housing (41) being provided with a two-stage reduction input shaft (42) along the front-back direction, the two-stage reduction input shaft (42) being provided with a two-stage reduction left output shaft (43) and a two-stage reduction right output shaft (44) on the left and right sides respectively, a two-stage reduction intermediate shaft (45) and a two-stage reduction intermediate shaft (46) being provided between the two-stage reduction input shaft (42) and the two-stage reduction left output shaft (43), the two-stage reduction intermediate shaft (45) and the two-stage reduction intermediate shaft (46) being arranged in parallel on the left and right sides, and a two-stage reduction intermediate shaft (45) and a two-stage reduction intermediate shaft (46) being provided between the two-stage reduction input shaft (42) and the two-stage reduction right output shaft (44). The secondary reduction intermediate shaft (47) is connected to the secondary reduction input shaft (42) and the secondary reduction intermediate shaft (45) through the secondary reduction gear pair (48), the secondary reduction intermediate shaft (45) and the secondary reduction intermediate shaft (46) are connected through the secondary reduction gear pair (49), the secondary reduction intermediate shaft (46) and the secondary reduction left output shaft (43) are connected through the secondary reduction gear pair (410), the secondary reduction input shaft (42) and the secondary reduction intermediate shaft (47) are connected through the secondary reduction gear pair (411), and the secondary reduction intermediate shaft (47) and the secondary reduction right output shaft (44) are connected through the secondary reduction gear pair (412).

3. The electronic drafting drive mechanism of a spinning frame according to claim 2, characterized in that: The rear ends of the secondary reduction left output shaft (43) and the secondary reduction right output shaft (44) extend out of the secondary reduction housing (41); two left and right front rollers (11) are arranged above the mounting base plate (1); the front ends of the left and right front rollers (11) are connected to the rear ends of the secondary reduction left output shaft (43) and the secondary reduction right output shaft (44) respectively through roller couplings (12).

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