Compact spinning carrier gear assembly

Abstract

The invention discloses a carrier gear assembly for compact spinning, and relates to the technical field of spinning. The gear shaft sealing device specifically comprises a gear shaft, a connecting sleeve fixed to the outer walls of tooth pieces and the tooth pieces arranged on the two sides of the connecting sleeve, the sides, close to the connecting sleeve, of the two tooth pieces are provided with double-end sealing assemblies used for sealing, the other sides of the tooth pieces are provided with single-end sealing assemblies used for being sealed with the gear shaft, and connecting rings are fixed to the inner side end faces of the tooth pieces. The connecting ring is rotationally connected to the outer wall of the connecting sleeve in a clearance fit mode. The whole carrier gear is arranged to be a combination of the tooth pieces and the connecting sleeve, and the tensioning force in the rotating direction between the tooth pieces and the connecting sleeve is achieved through the buffer tensioning spring, so that when a tooth gap occurs due to abrasion, the two tooth pieces rotate relative to the connecting sleeve while being meshed, and therefore the tooth gap is formed. Therefore, the opposite sides of the teeth of the two tooth pieces are combined to form a tooth shape with the tooth width becoming larger for meshing, and the abrasion clearance is compensated.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and in particular to a composite spinning bridge gear assembly. Background Technology

[0002] Compact spinning is a novel spinning technology performed on an improved ring spinning frame. Its spinning mechanism primarily involves adding a fiber cohesion zone before the traction device of the ring spinning frame, essentially eliminating the spinning twisting triangle zone between the front roller and the twisting point. After the fiber sliver exits from the front roller, it first passes through a shaped suction tube and an outer mesh apron. As the sliver moves on the mesh apron, due to the contraction and aggregation of the airflow, it is drawn together and rotated through the suction grooves of the shaped tube, gradually transforming from a flat strip into a cylinder. The fiber ends are all twisted into the yarn, resulting in a very compact yarn with a smooth appearance and minimal hairiness.

[0003] The aggregate spinning bridge gear assembly is used to connect the front roller and the drive shaft of the shaped suction pipe. It transmits the rotational power of the front roller to the drive shaft of the shaped suction pipe, thereby achieving the improvement and addition of no power input required.

[0004] However, due to wear and tear on gears during long-term use, gaps in the yarn teeth between the gears meshing with the bridge gears are created. In the actual spinning process, the yarn tension will fluctuate, which will cause the gears to collide at high speeds, resulting in significant wear and tear.

[0005] Therefore, the present invention proposes a composite spinning bridge gear assembly. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a composite spinning bridge gear assembly.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A composite spinning bridge gear assembly includes a gear shaft, a connecting sleeve fixed to the outer wall of the gear teeth, and gear teeth disposed on both sides of the connecting sleeve.

[0009] The two toothed plates are provided with a double-end sealing assembly for sealing on one side near the connecting sleeve, and a single-end sealing assembly for sealing with the gear shaft is provided on the other side of the toothed plates.

[0010] A connecting ring is fixed to the inner end face of the toothed piece. The connecting ring is rotatably connected to the outer wall of the connecting sleeve with a gap fit. An arc-shaped clearance groove is opened on the inner wall of the toothed piece. A limiting post penetrating the toothed piece is fixed to the side wall of the connecting sleeve. A buffer tension spring is fixed to the outer wall of the limiting post. The other end of the buffer tension spring is fixed to the side wall of the toothed piece through a tension adjustment assembly.

[0011] The two gears are subjected to the tension of the buffer spring and rotate in opposite directions relative to the connecting sleeve.

[0012] Preferably, the two buffer tension springs are arranged symmetrically at 180 degrees along the direction of rotation, with the axis of symmetry being the rotation axis of the toothed plate and the connecting sleeve.

[0013] Furthermore, the tension adjustment assembly includes a drum and a pull rope. The drum is rotatably connected to the end face of the toothed plate, one end of the pull rope is wound around the outer wall of the drum, and the other end of the pull rope is fixed to the end of the buffer tension spring.

[0014] Based on the aforementioned scheme: the outer wall of the drum is provided with a toothed groove, the toothed groove of the drum is engaged with a locking block, the locking block is slidably connected to the end face of the toothed piece, and the locking block is connected to the end face of the toothed piece through a force spring.

[0015] A better option among the aforementioned solutions is that a knob is fixed to the side wall of the drum.

[0016] As a further aspect of the present invention: the inner wall of the connecting sleeve is provided with an oil storage cavity, and the two sides of the oil storage cavity are provided with through oil outlet holes; the inner wall of the toothed plate is provided with a lubricating oil passage located at the tooth root; and the inner wall of the connecting ring is provided with a connecting oil passage communicating with the lubricating oil passage.

[0017] Meanwhile, the double-ended sealing assembly includes two movable ladder platforms fixed to both sides of the stationary ring one by spring pieces and two movable rings one fixed to the end face of the connecting ring. The inner wall of the movable ring one is provided with a ladder groove one, which is movably contacted and fitted with the inner wall of the movable ladder platform.

[0018] As a preferred embodiment of the present invention: an anti-slip groove is provided on the inner wall of the side of the moving ladder that contacts the spring sheet, and a through hole is provided on the side wall of the moving ring along the axis.

[0019] Meanwhile, the single-end sealing assembly includes a second moving ring, a second fixed ring, and a second stationary ring. The second fixed ring is fixed to the outer wall of the gear shaft, the second stationary ring is movably disposed on the outer wall of the gear shaft, and the second stationary ring is connected to the second fixed ring by a spring. The other side of the second stationary ring is engaged with the inner wall of the second moving ring by a step-like contact, and the second moving ring is fixedly embedded in the inner side wall of the gear plate.

[0020] As a preferred embodiment of the present invention, an anti-slip groove is provided on the opposite side of the fixed ring and the stationary ring.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. This invention sets the entire bridge gear as a combination of toothed plates and a connecting sleeve, and uses a buffer tension spring to achieve a rotational tension between the toothed plates and the connecting sleeve. This ensures that, on the one hand, when tooth gaps occur due to wear (referring to the figure), the two toothed plates rotate relative to the connecting sleeve while meshing, allowing the opposite sides of the teeth of the two toothed plates to form a tooth profile with a wider tooth width for meshing, thus compensating for wear gaps. On the other hand, even if uneven wear occurs and slight impacts still occur, the elasticity of the buffer tension spring will absorb the impact, thereby reducing vibration, increasing service life, and reducing high-speed noise.

[0023] 2. In this invention, by setting a tension adjustment component, the deformation of the buffer tension spring can be adjusted by winding and unwinding the pull rope, thereby adjusting the elastic tension between the toothed plate and the connecting sleeve. This ensures that the tension provided by the buffer tension spring is greater than the tension of the yarn itself during normal transmission, thus ensuring the working stability of the entire toothed plate and connecting sleeve transmission system.

[0024] 3. This invention, while utilizing grease lubrication to ensure meshing lubrication function and further reduce noise and wear, utilizes the viscous resistance of grease combined with centrifugal force characteristics, so that the grease will not leak out in the non-rotating working state, but will leak out due to centrifugal force in the working state, thereby increasing the reliability of lubrication.

[0025] 4. In this invention, by setting a moving ladder and a moving ring, the trapezoidal surfaces of the moving ladder and the moving ring can be used to achieve axial sealing, thereby effectively preventing lubricating grease from leaking from the gap between the connecting ring and the connecting sleeve. In addition, by setting the moving ring, it can also introduce lubricating grease into the mating surface of the moving ladder and the moving ring, reducing the wear rate.

[0026] 5. In this invention, by setting a single-end sealing component, the elastic force provided by the spring can make the platform and the moving ring two tightly connected, thereby preventing the lubricating grease from leaking out due to gravity after the machine stops and is thrown out, while ensuring rotation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a polymer spinning bridge gear assembly proposed in this invention;

[0028] Figure 2 This is a schematic diagram of the limiting post, arc-shaped clearance groove, and buffer tension spring structure of a polymer spinning bridge gear assembly proposed in this invention.

[0029] Figure 3 This is a schematic diagram of the misaligned structure of two teeth of a polymer spinning bridge gear assembly proposed in this invention;

[0030] Figure 4 This is a schematic diagram of the tension adjustment assembly structure of a polymer spinning bridge gear assembly proposed in this invention;

[0031] Figure 5 This is a cross-sectional view of the lubrication portion of a polymer spinning bridge gear assembly proposed in this invention.

[0032] Figure 6 This is a schematic diagram of the double-end sealing assembly structure of a polymer spinning bridge gear assembly proposed in this invention;

[0033] Figure 7 This is a schematic diagram of a single-end sealing assembly structure for a polymer spinning bridge gear assembly proposed in this invention;

[0034] Figure 8 This is a cross-sectional view of a single-end sealing assembly of a polymer spinning bridge gear assembly proposed in this invention.

[0035] In the diagram: 1. Gear shaft; 2. Gear plate; 3. Connecting sleeve; 4. Double-end sealing assembly; 5. Connecting ring; 6. Single-end sealing assembly; 7. Limiting post; 8. Arc-shaped clearance groove; 9. Buffer tension spring; 10. Tension adjustment assembly; 11. Force spring; 12. Locking block; 13. Knob; 14. Drum; 15. Pull rope; 16. Spring; 17. Stationary ring one; 18. Moving ladder platform; 19. Ladder groove one; 20. Moving ring one; 21. Anti-slip groove one; 22. Through hole; 23. Connecting oil passage; 24. Lubricating oil passage; 25. Oil outlet; 26. Oil storage chamber; 27. Moving ring two; 28. Ladder platform; 29. ​​Anti-slip groove two; 30. Fixed ring; 31. Spring; 32. Stationary ring two. Detailed Implementation

[0036] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] Example 1:

[0039] A type of aggregate spinning bridge gear assembly, such as Figures 1-8 As shown, it includes a gear shaft 1, a connecting sleeve 3 fixed to the outer wall of the gear piece 2, and gear pieces 2 disposed on both sides of the connecting sleeve 3. A double-end sealing assembly 4 for sealing is disposed on one side of the two gear pieces 2 near the connecting sleeve 3, and a single-end sealing assembly 6 for sealing with the gear shaft 1 is disposed on the other side of the gear piece 2.

[0040] A connecting ring 5 is fixed to the inner end face of the toothed plate 2. The connecting ring 5 is rotatably connected to the outer wall of the connecting sleeve 3 with a gap fit. An arc-shaped clearance groove 8 is opened on the inner wall of the toothed plate 2. A limiting post 7 that penetrates the toothed plate 2 is fixed to the side wall of the connecting sleeve 3. A buffer tension spring 9 is fixed to the outer wall of the limiting post 7. The other end of the buffer tension spring 9 is fixed to the side wall of the toothed plate 2 through the tension adjustment assembly 10.

[0041] The two toothed plates 2 are subjected to the tension of the buffer tension spring 9 and rotate in opposite directions relative to the connecting sleeve 3.

[0042] The two buffer tension springs 9 are arranged symmetrically at 180 degrees along the rotation direction. The axis of central symmetry is the rotation axis of the toothed plate 2 and the connecting sleeve 3. Their relative rotation direction is centrally symmetrical, which can effectively solve the dynamic balance problem, further reduce the second-order vibration tendency, and reduce noise.

[0043] When in use, this device employs two toothed plates 2 that mesh simultaneously. A buffer tension spring 9 is provided, which is equivalent to applying a force to rotate one toothed plate 2 clockwise and another toothed plate 2 counterclockwise. As a result, the two toothed plates rotate slightly relative to each other, and there is partial overlap in the projection. The slight change in thickness between the combined teeth can compensate for the previous wear.

[0044] This device, by configuring the entire bridge gear as a combination of toothed plate 2 and connecting sleeve 3, and by using a buffer tension spring 9 to achieve a rotational tension force between toothed plate 2 and connecting sleeve 3, thus, on the one hand, when tooth backlash occurs due to wear, reference... Figure 3 When the two toothed plates 2 are engaged, they will rotate relative to the connecting sleeve 3. This allows the teeth of the two toothed plates 2 to be combined on opposite sides to form a tooth shape with a wider tooth width for engagement, compensating for wear gaps. On the other hand, even if uneven wear occurs, slight impacts will still occur, and the elasticity of the buffer tension spring 9 will absorb the impact, thereby reducing vibration, increasing service life, and reducing high-speed noise.

[0045] To solve the regulation problem; such as Figure 1 As shown, the tension adjustment assembly 10 includes a drum 14 and a pull rope 15. The drum 14 is rotatably connected to the end face of the toothed plate 2. One end of the pull rope 15 is wrapped around the outer wall of the drum 14, and the other end of the pull rope 15 is fixed to the end of the buffer tension spring 9.

[0046] A knob 13 is fixed to the side wall of the drum 14.

[0047] The outer wall of the drum 14 is provided with a toothed groove, and a locking block 12 is engaged with the toothed groove of the drum 14. The locking block 12 is slidably connected to the end face of the toothed piece 2, and the locking block 12 is connected to the end face of the toothed piece 2 through a force spring 11.

[0048] When the locking block 12 is pulled out from the tooth groove of the drum 14, the knob 13 can be rotated to make the drum 14 wind up or unwind the pull rope 15, thereby changing the deformation of the buffer tension spring 9 and adjusting the elastic tension between the toothed plate 2 and the connecting sleeve 3.

[0049] In actual use, the yarn tension varies for different spinning processes, resulting in different torque transmission between the toothed plate 2 and the connecting sleeve 3. If the tension of the buffer tension spring 9 is less than the yarn tension, the toothed plate 2 and the connecting sleeve 3 will experience relative rotational reciprocating vibration during normal transmission, exacerbating noise and wear. Therefore, this device is equipped with a tension adjustment component 10, which can adjust the deformation of the buffer tension spring 9 by winding and unwinding the pull rope 15, thereby adjusting the elastic tension between the toothed plate 2 and the connecting sleeve 3. This ensures that the tension provided by the buffer tension spring 9 is greater than the yarn tension itself during normal transmission, thus ensuring the working stability of the entire toothed plate 2 and connecting sleeve 3 transmission system.

[0050] To solve the lubrication problem; such as Figure 5 As shown, the inner wall of the connecting sleeve 3 is provided with an oil storage cavity 26, and the two sides of the oil storage cavity 26 are provided with through oil outlet holes 25. The inner wall of the toothed plate 2 is provided with a lubricating oil passage 24 located at the tooth root, and the inner wall of the connecting ring 5 is provided with a connecting oil passage 23 that communicates with the lubricating oil passage 24.

[0051] Before assembly, lubricating grease can be placed in the oil reservoir 26. Since there is a gap between the end faces of the toothed plate 2 and the connecting sleeve 3, but the gap is small, under normal static conditions, the viscous resistance of the lubricating oil itself will prevent the grease from leaking out through the gap. During the rotation process, the grease will be subjected to centrifugal force, thereby overcoming its viscous resistance and filling the gap between the end faces of the toothed plate 2 and the connecting sleeve 3. Then, it flows to the root of the toothed plate 2 through the connecting oil passage 23 and the lubricating oil passage 24 to achieve lubrication.

[0052] This device, while utilizing grease lubrication to ensure meshing lubrication and further reduce noise and wear, also leverages the viscous resistance of grease combined with centrifugal force characteristics. This ensures that the grease does not leak out during non-rotational operation, but only leaks out under centrifugal force during operation, thus increasing the reliability of lubrication.

[0053] In this embodiment, two toothed plates 2 engage simultaneously, and a buffer tension spring 9 provides rotational tension between the toothed plates 2 and the connecting sleeve 3. When wear causes tooth gaps, the two toothed plates 2 rotate relative to the connecting sleeve 3 while engaging, effectively applying a clockwise rotational force to one toothed plate 2 and a counterclockwise rotational force to the other. This slight relative rotation results in partial overlap in the projection, which compensates for previous wear and reduces wear gaps through slight changes in the thickness between the combined teeth. Furthermore, in actual use, different spinning processes result in varying yarn tension, leading to different torque transmission magnitudes between the toothed plates 2 and the connecting sleeve 3. If the tension of the buffer tension spring 9 is less than the yarn tension, reciprocating vibrations between the toothed plates 2 and the connecting sleeve 3 will occur during normal transmission, exacerbating noise and... To address wear, this device incorporates a tension adjustment component 10. This component adjusts the deformation of the buffer tension spring 9 by winding and unwinding the pull rope 15, thereby regulating the elastic tension between the toothed plate 2 and the connecting sleeve 3. This ensures that the tension provided by the buffer tension spring 9 is greater than the tension of the yarn itself during normal transmission, thus guaranteeing the operational stability of the entire toothed plate 2 and connecting sleeve 3 transmission system. Simultaneously, lubricating grease can be placed in the oil storage chamber 26 before assembly. Since there is a small gap between the end faces of the toothed plate 2 and the connecting sleeve 3, the viscous resistance of the lubricating grease prevents it from leaking out through the gap during normal static operation. During rotation, the grease is subjected to centrifugal force, which overcomes its viscous resistance and fills the gap between the end faces of the toothed plate 2 and the connecting sleeve 3. Then, it flows to the root of the toothed plate 2 through the connecting oil passage 23 and the lubricating oil passage 24, achieving lubrication.

[0054] Example 2:

[0055] A type of aggregate spinning bridge gear assembly, such as Figures 1-8 As shown, in order to solve the leakage problem, this embodiment makes the following improvements based on embodiment 1: The double-end sealing assembly 4 includes two movable ladder platforms 18 fixed to both sides of the stationary ring 17 by spring pieces 16 and two movable rings 20 fixed to the end face of the connecting ring 5. The inner wall of the movable ring 20 is provided with a ladder groove 19, which is in contact with the inner wall of the movable ladder platform 18.

[0056] Furthermore, an anti-slip groove 21 is provided on the inner wall of the side of the movable ladder platform 18 that contacts the spring piece 16. The anti-slip groove 21 is used to increase the contact surface between the movable ladder platform 18 and the spring piece 16.

[0057] The side wall of the moving ring 20 is provided with a through hole 22 along the axis.

[0058] By setting the moving platform 18 and the moving ring 20, the axial seal can be achieved by using the trapezoidal surface of the moving platform 18 and the moving ring 20, which can effectively prevent the lubricating grease from leaking from the gap between the connecting ring 5 and the connecting sleeve 3. In addition, by setting the moving ring 20, the lubricating grease can also be introduced into the mating surface of the moving platform 18 and the moving ring 20, reducing the wear rate.

[0059] The single-end sealing assembly 6 includes a moving ring 27, a fixed ring 30, and a stationary ring 32. The fixed ring 30 is fixed to the outer wall of the gear shaft 1, and the stationary ring 32 is movably disposed on the outer wall of the gear shaft 1. The stationary ring 32 is connected to the fixed ring 30 by a spring 31. The other side of the stationary ring 32 is in contact with the inner wall of the moving ring 27 through a step 28. The moving ring 27 is fixedly embedded in the inner side wall of the gear piece 2.

[0060] The fixed ring 30 and the stationary ring 32 are provided with anti-slip grooves 29 on their opposite sides.

[0061] By setting a single-end sealing component 6, the elastic force provided by the spring 31 can make the platform 28 and the rotating ring 27 tightly connected, thereby preventing the lubricating grease from leaking along the gap between the gear plate 2 and the gear shaft 1 after being thrown out and then subjected to gravity force after the machine stops, while ensuring rotation.

[0062] In this embodiment, by setting the moving ladder 18 and the moving ring 20, the trapezoidal surfaces of the moving ladder 18 and the moving ring 20 can be used to achieve axial sealing, thereby effectively preventing lubricating grease from leaking from the gap between the connecting ring 5 and the connecting sleeve 3. In addition, by setting the moving ring 20, lubricating grease can also be introduced into the mating surface of the moving ladder 18 and the moving ring 20, reducing the wear rate. By setting the single-end sealing component 6, the elastic force provided by the spring 31 can make the ladder 28 and the moving ring 27 tightly connected, thereby preventing the lubricating grease from leaking along the gap between the gear plate 2 and the gear shaft 1 after being thrown out and then subjected to gravity force after the machine stops, while ensuring rotation.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A composite spinning bridge gear assembly, comprising a gear shaft (1), a connecting sleeve (3) fixed to the outer wall of a gear plate (2), and gear plates (2) disposed on both sides of the connecting sleeve (3), characterized in that, The two toothed pieces (2) are provided with a double-end sealing assembly (4) for sealing on one side near the connecting sleeve (3), and a single-end sealing assembly (6) for sealing with the gear shaft (1) is provided on the other side of the toothed pieces (2). A connecting ring (5) is fixed to the inner end face of the toothed plate (2). The connecting ring (5) is rotatably connected to the outer wall of the connecting sleeve (3) with a gap fit. An arc-shaped clearance groove (8) is opened on the inner wall of the toothed plate (2). A limiting post (7) that penetrates the toothed plate (2) is fixed to the side wall of the connecting sleeve (3). A buffer tension spring (9) is fixed to the outer wall of the limiting post (7). The other end of the buffer tension spring (9) is fixed to the side wall of the toothed plate (2) through the tension adjustment assembly (10). The two gears (2) are subjected to the tension of the buffer tension spring (9) and rotate in opposite directions relative to the connecting sleeve (3).

2. The aggregate spinning bridge gear assembly according to claim 1, characterized in that, The two buffer tension springs (9) are arranged symmetrically at 180 degrees along the direction of rotation, with the axis of symmetry being the rotation axis of the toothed plate (2) and the connecting sleeve (3).

3. The aggregate spinning bridge gear assembly according to claim 1, characterized in that, The tension adjustment assembly (10) includes a drum (14) and a pull rope (15). The drum (14) is rotatably connected to the end face of the toothed plate (2). One end of the pull rope (15) is wrapped around the outer wall of the drum (14), and the other end of the pull rope (15) is fixed to the end of the buffer tension spring (9).

4. The aggregate spinning bridge gear assembly according to claim 3, characterized in that, The outer wall of the drum (14) is provided with a toothed groove, and the toothed groove of the drum (14) is engaged with a locking block (12). The locking block (12) is slidably connected to the end face of the toothed piece (2), and the locking block (12) is connected to the end face of the toothed piece (2) through a force spring (11).

5. A polymer spinning bridge gear assembly according to claim 3, characterized in that, A knob (13) is fixed to the side wall of the drum (14).

6. The aggregate spinning bridge gear assembly according to claim 1, characterized in that, The inner wall of the connecting sleeve (3) is provided with an oil storage cavity (26), and the two sides of the oil storage cavity (26) are provided with through oil outlet holes (25). The inner wall of the toothed plate (2) is provided with a lubricating oil channel (24) located at the tooth root, and the inner wall of the connecting ring (5) is provided with a connecting oil channel (23) communicating with the lubricating oil channel (24).

7. The aggregate spinning bridge gear assembly according to claim 1, characterized in that, The double-ended sealing assembly (4) includes two movable ladder platforms (18) fixed to both sides of the stationary ring (17) by spring pieces (16) and two movable rings (20) fixed to the end face of the connecting ring (5). The inner wall of the movable ring (20) is provided with a ladder groove (19), which is in contact with the inner wall of the movable ladder platform (18).

8. A polymer spinning bridge gear assembly according to claim 7, characterized in that, The inner wall of the movable platform (18) that contacts the spring piece (16) is provided with an anti-slip groove (21), and the side wall of the movable ring (20) is provided with a through hole (22) along the axis.

9. A composite spinning bridge gear assembly according to claim 1, characterized in that, The single-end sealing assembly (6) includes a moving ring (27), a fixed ring (30), and a stationary ring (32). The fixed ring (30) is fixed to the outer wall of the gear shaft (1), and the stationary ring (32) is movably disposed on the outer wall of the gear shaft (1). The stationary ring (32) is connected to the fixed ring (30) by a spring (31). The other side of the stationary ring (32) is in contact with the inner wall of the moving ring (27) through a ladder (28). The moving ring (27) is fixedly embedded in the inner wall of the gear piece (2).

10. A composite spinning bridge gear assembly according to claim 9, characterized in that, The fixed ring (30) and the stationary ring (32) are provided with anti-slip grooves (29) on the opposite side.

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