A kind of electronic drafting bridge gear transmission mechanism for spinning frame

Abstract

The present invention relates to an electronic drafting bridge gear transmission mechanism of a spinning frame, which comprises a wallboard, a roller and a roller driving gear box, wherein the roller driving gear box is fixedly arranged on the wallboard, the roller driving gear box comprises an input shaft and an output shaft, the output shaft is provided with a first shaft head gear, the roller is provided with a second shaft head gear, a bridge gear rocker arm supporting mechanism is provided between the first shaft head gear and the second shaft head gear, the bridge gear rocker arm supporting mechanism comprises a bridge gear rocker arm, a bridge gear shaft is provided on the bridge gear rocker arm, a bridge gear shaft is provided on the bridge gear shaft, and the first shaft head gear and the second shaft head gear are both meshed with the bridge gear. The roller shaft head gear after the position is adjusted by meshing the bridge gear installed on the rocker arm can meet the requirement of transmitting driving force, so that the center distance adjustment range between the rollers is increased or decreased, and the spinning range of the wool spinning frame can be increased.

Description

Technical Field

[0001] The invention relates to an electronic drafting bridge gear transmission mechanism for 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 bridge gear transmission mechanism for a spinning frame in response to the above-mentioned prior art. The roller shaft head gear after the meshing adjustment position of the bridge gear installed on the rocker arm can meet the requirement of transmitting driving force, so that the center distance adjustment range between the rollers can be increased or decreased, which can increase the spinning range of the wool spinning frame.

[0010] The technical solution adopted by the present invention to solve the above-mentioned problem is: a spinning machine electronic drafting bridge gear transmission mechanism, which includes a wall panel, a roller and a roller driving gear box, the roller driving gear box is fixedly arranged on the wall panel, the roller driving gear box includes an input shaft and an output shaft, the output shaft is provided with a first shaft head gear, the roller is provided with a second shaft head gear, a bridge gear rocker arm support mechanism is provided between the first shaft head gear and the second shaft head gear, the bridge gear rocker arm support mechanism is fixedly arranged on the wall panel, the bridge gear rocker arm support mechanism includes a bridge gear rocker arm, the bridge gear rocker arm is provided with a bridge gear shaft, the bridge gear shaft is provided with a bridge gear, the first shaft head gear and the second shaft head gear are both meshed with the bridge gear.

[0011] Optionally, a rocker guide ring is provided on the inner side of the bridge gear rocker arm, and the rocker guide ring is sleeved on the output shaft. 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 wall panel through two sets of upper and lower bolt connection assemblies.

[0012] Optionally, the rocker arm guide ring, the upper positioning hole and the lower positioning hole are arranged in a triangle.

[0013] Optionally, a bridge gear shaft hole is provided between the rocker arm guide ring and the lower positioning hole, and the bridge gear shaft is installed in the bridge gear shaft hole.

[0014] Optionally, the rocker arm guide ring, the bridge gear shaft hole and the lower positioning hole are located on the same straight line.

[0015] Optionally, a rocker handle is provided extending outwardly from the outer side of the upper positioning hole.

[0016] Optionally, the bolt connection assembly includes a first connection bolt, on which a gasket, a washer and a nut are sequentially arranged.

[0017] Optionally, two upper and lower arc-shaped guide grooves are formed on the wall panel, and the bolt connection assembly is arranged in the arc-shaped guide grooves.

[0018] Optionally, the bridge gear includes a gear body, a bearing hole is opened at the center of the gear body, two front and rear bridge gear bearings are arranged in the bearing hole, a circle of gear hub is arranged on the rear side of the gear body, an inclined oil hole is opened on the gear hub, the inclined oil hole extends inwardly to the position of the bridge gear bearing, and an oil cup is arranged in the inclined oil hole.

[0019] Optionally, a circle of spoke plate grooves is provided on the front side of the gear body, and an end of a first connecting bolt of one of the bolt connecting assemblies is aligned with the spoke plate groove.

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

[0021] 1. In the present invention, gears are respectively arranged on the left and right output shafts of the middle and rear roller driving gear boxes, 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 the 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 often needs to adjust the center distance of the front and rear rollers according to the different raw materials and lengths spun, the different quantities of coarse yarns, etc., and the shaft head gear of the rear roller after the position is adjusted by meshing the bridge gear installed on the rocker arm can meet the requirement of transmitting driving force; and the reason for adopting the same structure as the back roller for the middle roller is that the adjustment range of the center distance between the front roller and the middle roller can be enlarged, the suitable spinning range of the wool spinning frame can be increased, the length range of the spun fibers can reach the semi-worsted cashmere products between the cotton spinning frame and the wool spinning frame, and the product added value of the wool spinning frame can be improved. The rocker arm is used to connect the bridge gear to mesh the output shaft head gear and the roller shaft head gear mechanism to transmit power, which can not only expand the adjustment range of the roller center distance, but also make the adjustment convenient and quick. If the peripheral parts use the same configuration, they can also be easily interchangeable, and the cost is relatively low.

[0022] 2. The bridge gear rocker arm of the present invention is fixed with two locating holes, and the force arms of the two locating holes around the center of the guide ring are greater than the force arm connecting the bridge gear shaft. The head of the connecting bolt of one of the bolt connecting assemblies is embedded in the spoke plate groove of the bridge gear. In this way, the length of the bridge gear shaft can be as short as possible, the structure can be compact, and the control force of the bridge gear rocker arm on the bridge gear is increased; there is an angle (50°) between the center of the two locating holes and the center line of the rocker arm guide ring, which increases the size of the bridge gear rocker arm and the torque of the fixed point; after adjusting the roller center distance, the bridge gear needs to rotate around the center of the guide ring (the output shaft head gear of the gear box) to re-engage the roller head gear. The torque required for the bridge gear to transmit the middle and rear roller drafting is relatively large. If one positioning hole is used to fix the bridge gear rocker arm, long-term safety cannot be guaranteed, and the bridge gear and its bearings are easily damaged. The bridge gear rocker arm is strengthened by using two positioning holes to fix it, which can solve this problem. The force arm of the two fixed points is large, which can make the bridge gear rocker arm more securely fixed; the bolts, nuts, washers, etc. used in the two positioning holes use the same structure to enhance interchangeability;

[0023] 3. The bridge gear of the present invention is equipped with two bearings with sealing rings on one side (two bearings increase strength), the sealing rings are installed outward, and there is an oblique oil hole on the bridge gear hub leading to the bearing. The orifice of the oblique oil hole is connected to an oil cup, so that oil can be regularly added to the bridge gear bearing through the oil cup, thereby extending the service life of the bearing and reducing the shutdown of the whole machine due to maintenance;

[0024] 4. The bridge gear shaft of the present invention is connected to two bearings and fixed to the bridge gear rocker arm through washers and bolts at both ends. This mechanism is very simple and compact, occupies a small space, runs smoothly, has a high load-bearing capacity, low noise and a long service life;

[0025] 5. The rocker handle of the present invention is far away from the gear teeth of the bridge gear which is stained with lubricating oil, so that the operation is convenient and the operator's hands are not contaminated with oil. 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. 9 for 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 GG cross-sectional view.

[0045] Fig. 20 for Fig.16 FF 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 249

[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] Sealing ring 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 is connected to the three-stage reduction input shaft 52. The three-stage reduction intermediate shaft 1 55 is connected through a three-stage reduction gear pair 1 59, the three-stage reduction intermediate shaft 1 55 is connected with the three-stage reduction intermediate shaft 2 56 through a three-stage reduction gear pair 2 510, the three-stage reduction intermediate shaft 2 56 is connected with the three-stage reduction left output shaft 53 through a three-stage reduction gear pair 3 511, the three-stage reduction intermediate shaft 1 55 is connected with the three-stage reduction intermediate shaft 3 57 through a three-stage reduction gear pair 4 512, the three-stage reduction intermediate shaft 3 57 is connected with the three-stage reduction intermediate shaft 4 58 through a three-stage reduction gear pair 513, and the three-stage reduction intermediate shaft 4 58 is connected with the three-stage reduction right output shaft 54 ​​through a three-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 sealing 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 bridge gear transmission mechanism for a spinning frame, characterized in that: It comprises a wallboard, a roller and a roller driving gear box, wherein the roller driving gear box is fixedly arranged on the wallboard, the roller driving gear box comprises an input shaft and an output shaft, the output shaft is provided with a first shaft head gear (152), the roller is provided with a second shaft head gear (153), a bridge gear rocker arm supporting mechanism (151) is provided between the first shaft head gear (152) and the second shaft head gear (153), the bridge gear rocker arm supporting mechanism (151) is fixedly arranged on the wallboard, the bridge gear rocker arm supporting mechanism (151) comprises a bridge gear rocker arm (1511), a bridge gear shaft (1512) is installed on the bridge gear rocker arm (1511), a bridge gear (1513) is provided on the bridge gear shaft (1512), and the first shaft head gear (152) and the second shaft head gear (153) are both meshed with the bridge gear (1513); A rocker guide ring (1514) is provided on the inner side of the bridge gear rocker arm (1511), and the rocker guide ring (1514) is sleeved on the output shaft. 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 wall panel via two sets of upper and lower bolt connection assemblies (1517); The rocker arm guide ring (1514), the upper positioning hole (1515) and the lower positioning hole (1516) are arranged in a triangle; 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 inserted into the bridge gear shaft hole (1518); 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; A rocker handle (1519) is provided extending outwardly from the outer side of the upper positioning hole (1515); The bolt connection assembly (1517) comprises a first connection bolt (1517.1), on which a gasket (1517.2), a washer (1517.3) and a nut (1517.4) are sequentially arranged.

2. The electronic drafting bridge gear transmission mechanism of a spinning frame according to claim 1, characterized in that: The wall panel is 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).

3. The electronic drafting bridge gear transmission mechanism of a spinning frame according to claim 1, characterized in that: 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 hubs (1513.3) is provided on the rear side of the gear body (1513.1), an inclined oil hole (1513.4) is provided on the gear hub (1513.3), the inclined oil hole (1513.4) extends inwardly to the position of the bridge gear bearing (17), and an oil cup (18) is arranged in the inclined oil hole (1513.4).

4. The electronic drafting bridge gear transmission mechanism of a spinning frame according to claim 3, characterized in that: A circle of spoke plate grooves (1513.5) is provided on the front side of the gear body (1513.1), wherein the end of a first connecting bolt (1517.1) of a bolt connection assembly (1517) is aligned with the spoke plate groove (1513.5).

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