Anti-accumulation carrier gear assembly for compact spinning

Abstract

The utility model relates to an anti-accumulation carrier gear assembly for compact spinning. The anti-accumulation carrier gear assembly comprises a carrier shaft, a carrier gear and a sealing mechanism, the bearing is installed on a bearing seat of the carrier gear and a second shaft section of the carrier shaft, the carrier gear is provided with a connecting part used for installing an inner protective cover on one side of the roller seat, and an outer baffle ring is arranged on one side of a baffle shoulder of the bearing seat; an inner protective cover of the sealing mechanism is arranged on a gap bridge shaft in a sleeving mode and installed on a connecting part of a gap bridge gear in a sealing mode, a first blocking piece is installed on a second shaft section and located on the inner side of a bearing, and the inner protective cover and the first blocking piece form an inner labyrinth seal. The end plate of the gear shield is installed at the shaft end of the gap bridge shaft through a fastener, the second blocking piece is arranged on the second shaft section of the gap bridge shaft and located on the outer side of the bearing, and the outer blocking ring of the gap bridge gear and the second blocking piece form an outer labyrinth seal. According to the utility model, the combination is reasonable, the path of flyings entering the bearing can be prolonged in a limited space, and the service life of the bearing can be prolonged.

Description

Technical Field

[0001] The utility model relates to an anti-flowering bridge gear assembly for compact spinning, belonging to the technical field of compact spinning of ring spinning machines. Background Art

[0002] In the traction device of the ring spinning machine, multiple groups of rollers are used. The fiber slivers are stretched and twisted by the rear roller, middle roller and front roller in the traction area, and then output from the front mouth of the front roller. They pass through the breathable mesh circle of the outer jacket of the special-shaped negative pressure tube. The slivers move on the mesh circle. Under the contraction and polymerization of the airflow, the slivers are gathered and rotated through the airflow guide groove of the special-shaped negative pressure tube, and gradually change from a flat strip to a cylinder. The ends of the fibers are twisted into the yarn, so the yarn is very compact, the yarn appearance is smooth and the hairiness is less.

[0003] The front roller on the ring spinning machine, as well as the compacting spinning device and the bridge gear assembly are all installed on the roller seat. The front roller is connected to the corresponding motor. The power is transmitted through the front roller gear of the front roller and through the bridge gear to the compacting lower roller gear of the compacting spinning device, so that the compacting lower roller rotates and drives the grid circle to rotate together.

[0004] The existing bridge gear assembly is located at the lower part of the concentrated spinning device, and is mainly composed of a bridge shaft, a bearing and a bridge gear. The bridge gear is installed on the bridge shaft through a bearing. Due to the poor environment of the cotton spinning mill, the air in the workshop contains more short fluff. The bearings of the bridge gear are usually ball bearings, and both sides of the bearings are directly exposed to the outside. The bearings and bridge gears are prone to attachment of flying flowers, and the bearings have no dustproof mechanism. Therefore, when the outer ring of the bearing rotates with the bridge gear, the flying flowers in the air can easily form flower accumulation at the bearing ball, and absorb the grease in the bearing, causing the bearing to get stuck or even damaged, and then causing excessive wear of the bridge gear, which affects the normal operation of the bridge gear. The abnormality of the bridge gear will cause the front roller and the lower roller of the gathering roller to jump, affecting the yarn quality. Therefore, it is necessary to replace the bearings frequently, which increases the production cost. In order to reduce the problem of bearing jamming caused by bearing flower accumulation, although bearings with dust rings on the sides can be used, in actual applications, the transmission position of the bridge gear assembly cannot be dustproof, and the dustproof distance inside the bearing is very short. Therefore, short fluff still passes through the dustproof ring and enters the bearing, and the sealing effect is poor. Therefore, the problem of bearing jamming and damage is still not well solved. Summary of the invention

[0005] The utility model aims to provide an anti-flowering bridge gear assembly for concentrated spinning which has reasonable combination, can extend the path for flying flowers to enter the bearing within a limited space, and can increase the service life of the bearing.

[0006] The utility model is a technical solution to achieve the above purpose: a bridge gear assembly for anti-flowering in condensed spinning, characterized in that it includes a bridge shaft, a bridge gear and a sealing mechanism;

[0007] The bridge shaft is installed on the roller seat, one side of the bridge shaft is provided with a first shaft section connected to the roller seat, the other side is provided with a second shaft section connected to the bearing, and the bridge shaft is provided with a shaft shoulder on one side of the second shaft section for axially limiting the first baffle;

[0008] The bridge gear is used to transmit power to the gathering lower roller, and the bearing is installed on the bearing seat of the bridge gear and the second shaft section of the bridge shaft. The bridge gear is provided with a connecting portion for installing the inner shield on one side of the roller seat, and an outer retaining ring is provided on the shoulder side of the bearing seat;

[0009] The sealing mechanism includes a first baffle, a second baffle, an inner shield and a gear shield. The inner shield is mounted on the bridge shaft and sealed on the connecting part of the bridge gear. The first baffle is mounted on the second shaft section and is located on the inner side of the bearing. The first baffle is connected to the bearing and the shaft shoulder of the bridge shaft. The inner shield and the first baffle form an inner labyrinth seal. The end plate of the gear shield is mounted on the shaft end of the bridge shaft through fasteners. The second baffle is arranged on the second shaft section of the bridge shaft and is located on the outer side of the bearing. The gear shield passes through the outer baffle ring and is pressed against the inner ring of the bearing through the second baffle. The outer baffle ring of the bridge gear and the second baffle form an outer labyrinth seal.

[0010] The utility model improves the bridge gear and the bridge shaft. The bridge gear is provided with a connection part for installing the inner shield on one side of the roller seat. The inner shield can be mounted on the bridge shaft and sealed on the connection part of the bridge gear. The first baffle is arranged between the inner side of the bearing and the inner shield. The inner shield and the first baffle form an inner labyrinth seal, so the formed sealing channel is a multi-stage folding type. In a limited space, the path for flying flowers to pass through the bearing is increased. The utility model is provided with an outer baffle ring on the outer side of the bridge gear, so that a step hole is added to one side of the bridge gear, so that the orifice size at the outer baffle ring can be reduced. The second baffle is arranged on the outer side of the bearing. When the gear shield is installed on the bridge shaft, the outer baffle ring of the bridge gear and the second baffle form an outer labyrinth seal. The multi-stage folding sealing channel formed in the same way increases the path for flying flowers to pass through the bearing, and has a significant sealing effect. The utility model has a simple and reasonable structure, greatly increases the path from the flying flower to the bearing, can keep the grease in the bearing as much as possible, and compared with the existing bridge gear assembly, the bearing replacement time is extended by 3 to 4 times, thereby greatly improving the service life of the bearing and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The embodiments of the present utility model are further described in detail below in conjunction with the accompanying drawings.

[0012] Figure 1 The utility model is a structural schematic diagram of an anti-flowering bridge gear assembly for concentrated spinning.

[0013] Figure 2 The utility model is another structural schematic diagram of an anti-flowering bridge gear assembly for concentrated spinning.

[0014] Figure 3 It is a structural schematic diagram of the utility model in which the bridge gear assembly is installed on a roller seat.

[0015] Among them: 1—bridge shaft, 1-1—first shaft section, 1-2—shaft shoulder, 1-3—second shaft section, 2—inner shield, 3—first baffle, 3-1—inner ring, 3-2—outer ring, 4—bearing, 5—bridge gear, 5-1—outer baffle, 5-2—bearing seat, 5-3—inner stop, 5-4—limiting groove, 5-5—annular notch, 6—second baffle, 6-1—inner ring edge, 7—gear shield, 7-1—end plate, 8—gasket, 9—fastener, 10—front roller, 10-1—front roller gear, 11—roller seat, 12—gathering lower roller, 12-1—gathering lower roller gear. DETAILED DESCRIPTION

[0016] See Figure 1 , 2 As shown, the utility model is a kind of anti-flowering bridge gear assembly for condensed spinning, comprising a bridge shaft 1, a bridge gear 5 and a sealing mechanism.

[0017] See Figure 3 As shown, the bridge shaft 1 of the utility model is installed on the roller seat 11, and the central axis of the bridge shaft 1, the central axis of the front roller 10 and the axis of the lower roller of the gathering spinning device are arranged in parallel. The front roller 10 is driven by power to rotate, and the passing fiber whiskers are stretched and twisted. The front roller gear 10-1 drives the lower roller gear 12-1 to rotate through the bridge gear 5, and the whisker hairiness is gathered under the action of the airflow guide groove of the special-shaped negative pressure tube. Figure 1 , 2 As shown, one side of the bridge shaft 1 of the utility model is provided with a first shaft section 1-1 connected to the roller seat 11, and the other side is provided with a second shaft section 1-3 connected to the bearing 4, and the bridge shaft 1 is provided with a shoulder 1-2 on one side of the second shaft section 1-3 for axially limiting the first baffle 3, the shaft diameter of the first shaft section 1-1 and the shaft diameter of the second shaft section 1-3 are smaller than the shaft diameter of the bridge shaft 1, and the bridge shaft 1 is provided with a threaded section on the first shaft section 1-1, the first shaft section 1-1 of the bridge shaft 1 is passed through the mounting hole of the roller seat 11 and screwed onto the threaded section with a nut, and the bridge gear 5 assembly is installed on the roller seat 11.

[0018] See Figure 1 , 2As shown, the bridge gear 5 of the utility model is used to transmit power to the gathering lower roller 12, the bearing 4 is installed on the bearing seat 5-2 of the bridge gear 5 and the second shaft section 1-3 of the bridge shaft 1, the bridge gear 5 is provided with a connecting portion for installing the inner shield 2 on the roller seat 11 side, and an outer retaining ring 5-1 is provided on the shoulder side of the bearing seat 5-2. By improving the bridge teeth and adding a step hole on one side of the bridge gear, the aperture size of the step hole can be reduced, the inner shield 2 is installed on the inner side of the bridge gear 5 and rotates with the bridge gear 5, and plays a role of dust blocking and sealing. At the same time, the outer retaining ring 5-1 on the bridge gear 5 reduces the aperture size, and also plays a role of dust blocking and sealing.

[0019] See Figure 1 , 2 As shown, the sealing mechanism of the utility model includes a first baffle 3, a second baffle 6, an inner shield 2 and a gear shield 7. The inner shield 2 is mounted on the bridge shaft 1 and is sealed on the connecting part of the bridge gear 5, so that the inner shield 2 rotates with the bridge gear 5, and at the same time, most of the flying flowers are blocked by the inner shield 2. The first baffle 3 is installed on the second shaft section 1-3 and is located on the inner side of the bearing 4. The first baffle 3 is connected with the bearing 4 and the shaft shoulder 1-2 of the bridge shaft 1. The inner shield 2 and the first baffle 3 form an inner labyrinth seal, so that a curved sealing channel is formed on the inner side of the bearing 4. In a limited space, the path from the flying flowers to the inner side of the bearing 4 is increased, and the flying flowers entering the bearing 4 are greatly reduced. See Figure 1 , 2 As shown, the end plate 7-1 of the gear shield 7 of the utility model is installed on the shaft end of the bridge shaft 1 through the fastener 9, the second baffle 6 is installed on the second shaft section 1-3 of the bridge shaft 1 and is located on the outside of the bearing 4, the end plate 7-1 of the gear shield 7 passes through the opening of the outer baffle ring 5-1 and is pressed against the inner ring of the bearing 4 through the second baffle 6, the outer baffle ring 5-1 of the bridge gear 5 and the second baffle 6 form an outer labyrinth seal, so the gear shield 7 fixed on the bridge shaft 1 and the outer baffle ring 5-1 rotating with the bridge gear 5 form a bent sealing channel, which increases the path of flying flowers to the outside of the bearing 4 and greatly reduces the flying flowers entering the bearing 4.

[0020] See Figure 1 As shown, the connecting portion of the bridge gear 5 of the utility model includes an annular inner stop 5-3, and the inner stop 5-3 is provided with a limiting groove 5-4 or a limiting convex ring for clamping the inner shield 2, and the mounting ring surface of the inner shield 2 is installed at the inner stop 5-3, and the convex ring or the clamping groove on the inner shield 2 corresponds to the limiting groove 5-4 or the limiting convex ring of the inner stop 5-3 and is sealed and connected, and the inner shield 2 is limited by the inner stop 5-3 and the convex and concave fit, so that the inner shield 2 is quickly installed on the connecting portion of the bridge gear 5.

[0021] See Figure 2As shown, the connecting portion of the bridge gear 5 of the utility model includes an annular notch 5-5, and a limiting groove 5-4 or a limiting convex ring for clamping the inner shield 2 is provided in the annular notch 5-5. A limiting groove 5-4 or a limiting convex ring can be provided on the outside or inside of the annular notch 5-5, and the mounting annular surface of the inner shield 2 is arranged in the annular notch 5-5. The convex ring or the clamping groove on the inner shield 2 corresponds to the limiting groove 5-4 or the limiting convex ring in the annular notch 5-5 and is sealed and connected, so that a gap communicating with the outside is provided between the orifice of the inner shield 2 and the bridge shaft 1.

[0022] See Figure 1 , 2 As shown, the inner ring of the first baffle 3 of the utility model is provided with an inner ring 3-1 extending in the axial direction, the first baffle 3 is connected to the shoulder 1-2 of the bridge shaft 1, and the inner ring 3-1 is pressed against the inner ring of the inner side of the bearing 4, so that the first baffle 3 is reliably installed on the second shaft section 1-3 and can prevent the axial movement of the bearing 4, and a multi-stage folded inner sealing channel is formed between the opening of the inner shield 2 and the bridge shaft 1, and between the first baffle 3, the inner shield 2 and the bridge gear 5. Figure 1 , 2 As shown, the first baffle 3 of the utility model is provided with an outer ring 3-2 extending axially on the outer ring, and the outer ring 3-2 is arranged in the inner shield 2 and the bridge gear 5, so that the path for the flying flowers to enter the bearing 4 can be further extended.

[0023] See Figure 1 , 2 As shown, the inner ring of the second baffle 6 of the utility model has an axially extending inner ring edge 6-1, and the inner ring edge 6-1 is pressed against the inner ring outside the bearing 4 to prevent the axial movement of the bearing 4. A multi-section folded outer sealing channel is formed between the opening of the outer baffle ring 5-1 of the bridge gear 5 and the gear shield 7, and between the second baffle 6, the outer baffle ring 5-1 and the bridge gear 5, thereby increasing the path for flying flowers to enter the bearing 4 and forming a better seal.

[0024] See Figure 1 , 2 As shown, the gear shield 7 of the utility model has an annular seat integrated with the end plate 7-1 and a sector-shaped shield extending to the outside of the bridge gear 5 on one side. A gap is provided between the annular seat and the opening of the outer retaining ring 5-1. The bridge gear 5 is protected by the gear shield 7. The end plate 7-1 is provided with a mounting hole through which the fastener 9 passes. The fastener 9 passes through the end plate 7-1 and is connected to the screw hole of the bridge shaft 1, so that the gear shield 7 can be easily installed on the bridge shaft 1. Figure 1 , 2 As shown, the gear shield 7 of the utility model is further provided with a gasket 8 on the outer side of the end plate 7 - 1 , and the fastener 9 passes through the gasket 8 and the end plate 7 - 1 to be connected with the bridge shaft 1 .

Claims

1. An anti-flowering bridge gear assembly for condensed spinning, characterized in that: It comprises a bridge shaft (1), a bridge gear (5) and a sealing mechanism; The bridge shaft (1) is mounted on a roller seat (11); one side of the bridge shaft (1) is provided with a first shaft section (1-1) connected to the roller seat (11); the other side of the bridge shaft (1) is provided with a second shaft section (1-3) connected to the bearing (4); and the bridge shaft (1) is provided with a shaft shoulder (1-2) on one side of the second shaft section (1-3) for axially limiting the first baffle (3); The bridge gear (5) is used to transmit power to the gathering lower roller (12); the bearing (4) is mounted on the bearing seat (5-2) of the bridge gear (5) and the second shaft section (1-3) of the bridge shaft (1); the bridge gear (5) is provided with a connecting portion for mounting the inner shield (2) on one side of the roller seat (11); and an outer retaining ring (5-1) is provided on the shoulder side of the bearing seat (5-2); The sealing mechanism comprises a first baffle (3), a second baffle (6), an inner shield (2) and a gear shield (7); the inner shield (2) is sleeved on the bridge shaft (1) and sealingly mounted on the connecting portion of the bridge gear (5); the first baffle (3) is mounted on the second shaft section (1-3) and is located on the inner side of the bearing (4); the first baffle (3) is connected to the bearing (4) and the shaft shoulder (1-2) of the bridge shaft (1); the inner shield (2) and the first baffle (3) form an inner labyrinth seal The end plate (7-1) of the gear shield (7) is mounted on the shaft end of the bridge shaft (1) via a fastener (9); the second baffle (6) is mounted on the second shaft section (1-3) of the bridge shaft (1) and is located outside the bearing (4); the end plate (7-1) of the gear shield (7) passes through the opening of the outer baffle ring (5-1) and is pressed against the inner ring of the bearing (4) via the second baffle (6); the outer baffle ring (5-1) of the bridge gear (5) and the second baffle (6) form an outer labyrinth seal.

2. The anti-flowering bridge gear assembly for condensed spinning according to claim 1, characterized in that: The connecting portion of the bridge gear (5) comprises an annular inner stop (5-3), the inner stop (5-3) being provided with a limiting groove (5-4) or a limiting convex ring for clamping the inner shield (2), the mounting annular surface of the inner shield (2) being mounted at the inner stop (5-3), the convex ring or the clamping groove on the inner shield (2) corresponding to the limiting groove (5-4) or the limiting convex ring on the inner stop (5-3) and being sealed and connected.

3. The anti-flowering bridge gear assembly for condensed spinning according to claim 1, characterized in that: The connecting portion of the bridge gear (5) comprises an annular notch (5-5), a limiting groove (5-4) or a limiting convex ring for clamping the inner shield (2) is provided in the annular notch (5-5), the mounting annular surface of the inner shield (2) is arranged in the annular notch (5-5), and the convex ring or the clamping groove on the inner shield (2) corresponds to and is sealed with the limiting groove (5-4) or the limiting convex ring in the annular notch (5-5).

4. The anti-flowering bridge gear assembly for condensed spinning according to claim 1, characterized in that: The inner ring of the first baffle (3) is provided with an inner ring (3-1) extending in the axial direction. The first baffle (3) is connected to the shaft shoulder (1-2) of the bridge shaft (1). The inner ring (3-1) is pressed against the inner ring on the inner side of the bearing (4). A multi-stage folded inner sealing channel is formed between the opening of the inner shield (2) and the bridge shaft (1) and between the first baffle (3), the inner shield (2) and the bridge gear (5).

5. The anti-flowering bridge gear assembly for condensed spinning according to claim 4, characterized in that: The first baffle (3) is provided with an outer ring (3-2) extending axially on the outer ring, and the outer ring (3-2) is arranged inside the inner shield (2) and the bridge gear (5).

6. The anti-flowering bridge gear assembly for condensed spinning according to claim 1, characterized in that: The inner ring of the second baffle (6) has an axially extending inner ring edge (6-1), the inner ring edge (6-1) being pressed against the inner ring outside the bearing (4), and a multi-section folded outer sealing channel is formed between the opening of the outer baffle ring (5-1) of the bridge gear (5) and the gear shield (7), and between the second baffle (6), the outer baffle ring (5-1) and the bridge gear (5).

7. The anti-flowering bridge gear assembly for condensed spinning according to claim 1, characterized in that: The gear shield (7) comprises an annular seat integral with the end plate (7-1) and a sector-shaped shield with one side extending outwardly to the outside of the bridge gear (5); the end plate (7-1) is provided with a mounting hole through which a fastener (9) passes; the fastener (9) passes through the end plate (7-1) and is connected to a screw hole on the bridge shaft (1).

8. The anti-flowering bridge gear assembly for condensed spinning according to claim 1 or 7, characterized in that: The gear shield (7) is further provided with a gasket (8) on the outside of the end plate (7-1), and a fastener (9) passes through the gasket (8) and the end plate (7-1) to be connected to the bridge shaft (1).

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