A bridge gear

Abstract

The utility model relates to a bridge gear, including the connecting bridge force arm of roller bracket, the bearing of setting on bridge force arm, drive gear and buckle cover, the bearing sets up between bridge force arm and drive gear, rotates and connects drive gear and bridge force arm, the buckle cover sets up two, two buckle cover sets up in the opposite side of drive gear, the inner ring of buckle cover one end contact bearing, the other end clearance fit of buckle cover drive gear, the utility model discloses through the clearance between drive gear and bridge force arm of buckle cover cover, reduces the card of fluff, avoids fluff wearing and tearing bearing and drive gear, prolongs the service life of bearing and drive gear. Simultaneously reduces the number of times of operator cleaning and maintaining bearing, drive gear, reduces the downtime of compact spinning, to improve the spinning efficiency of compact spinning.

Description

Technical Field

[0001] This utility model relates to the field of spinning equipment technology, and in particular to bridge gears. Background Technology

[0002] In compact spinning, the bridge gear is the transmission component between the rear roller and the condensing roller, ensuring that the rear roller and the condensing roller operate synchronously.

[0003] During the spinning process, the intermediate gear is located in an environment with a high concentration of lint. Fine, suspended lint can easily drift into or be trapped by the lubricating oil, becoming lodged in the gaps between the bearings and the intermediate gear. This trapped lint acts as abrasive, causing wear on the bearings and transmission gears. Severe accumulation of abrasive material can even seize the bearings, leading to malfunctions in the compact spinning equipment. This results in frequent cleaning and maintenance of the intermediate gear during daily use of the compact spinning machine, impacting its spinning efficiency.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a bridge gear to reduce foreign objects getting stuck in the bridge gear during operation.

[0006] The technical solution of this utility model is as follows: A bridge gear includes a bridge arm connecting a roller bracket, a bearing sleeved on the bridge arm, a transmission gear, and a retaining cover. The bearing is disposed between the bridge arm and the transmission gear, rotatably connecting the transmission gear and the bridge arm. Two retaining covers are provided, located on opposite sides of the transmission gear. One end of the retaining cover contacts the inner ring of the bearing, and the other end of the retaining cover is clearance-fitted with the transmission gear.

[0007] A further technical solution involves creating a weight-reducing groove on the transmission gear around its axis. One end of the cover extends into the weight-reducing groove.

[0008] A further technical solution is to provide ribs protruding in the weight reduction groove along the radial direction of the transmission gear.

[0009] A further technical solution is to create a clearance groove on the bridge arm along its radial direction.

[0010] A further technical solution involves providing a connecting shaft at the end of the bridge arm furthest from the transmission gear. A connecting section is provided at the end of the connecting shaft furthest from the bridge arm. Threads are provided on the connecting section.

[0011] A further technical solution involves changing the outer diameter between the bridge arm and the connecting shaft to form a bracket positioning surface facing the roller bracket.

[0012] A further technical solution involves placing a gear shaft at the end of the bridge arm closest to the transmission gear. The change in outer diameter between the bridge arm and the gear shaft forms a first positioning surface. A bearing is fitted onto the gear shaft. The first positioning surface contacts the cover.

[0013] A further technical solution involves installing a protective cover at the end of the gear shaft furthest from the bridge lever arm. The change in outer diameter between the protective cover and the gear shaft forms a second positioning surface. This second positioning surface contacts the snap-on cover.

[0014] A further technical solution involves a protective cover enclosing the transmission gears. The protective cover has a viewing hole.

[0015] A further technical solution involves creating a limiting groove within the shaft hole of the transmission gear, around its axis. The limiting groove connects to the side of the transmission gear. A bearing is then inserted into the limiting groove.

[0016] The beneficial technical effects of this utility model are as follows: (1) The bridge gear in this utility model is provided with a bridge arm and a transmission gear. The transmission gear is rotatably mounted on the roller bracket via the bridge arm to transmit the movement between the rear roller and the converging roller. A cover is also provided on the bridge arm. One end of the cover contacts the inner ring of the bearing, and the other end of the cover is fitted with the transmission gear to cover the gap between the transmission gear and the bridge arm, reducing the jamming of lint. This prevents lint from wearing down the bearing and the transmission gear, extending the service life of the bearing and the transmission gear. At the same time, it reduces the number of times operators need to clean and maintain the bearing and the transmission gear, reducing downtime in compact spinning, thereby improving the spinning efficiency of compact spinning.

[0017] (2) Further, a weight-reducing groove is formed on the transmission gear around its axis. One end of the cover can be inserted into the weight-reducing groove to restrict the position of the cover and improve the stability of the cover fixing. At the same time, when forming the transmission gear, if the thickness of the transmission gear is too large, it is difficult for the melt to fill the cavity, resulting in an incomplete shape of the transmission gear. The cooling rate of the surface and the center of the melt will also be different during subsequent cooling, resulting in air formation inside or surface defects. The weight-reducing groove reduces the thickness of the transmission gear, which facilitates the production of the transmission gear and ensures the structural integrity of the transmission gear. The weight-reducing groove allows the tooth surface of the transmission gear to be larger while ensuring the structural integrity of the transmission gear, making the transmission of the transmission gear more stable and ensuring the stability of the synchronous operation of the rear roller and the agglomeration roller.

[0018] (3) Further, ribs are provided in the weight reduction groove along the radial direction of the bridge arm. When the transmission gear rotates, it drives the ribs to rotate. The ribs disturb the airflow and have a purging effect on the hair near the weight reduction groove, reducing the accumulation of hair in the weight reduction groove and further reducing the cleaning of the transmission gear. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of a bridge gear according to an embodiment of the present disclosure is shown.

[0020] Figure 2 A cross-sectional view of a bridge gear according to an embodiment of the present disclosure is shown.

[0021] Figure 3 A three-dimensional structural diagram of the bridge gear and roller bracket according to an embodiment of the present disclosure is shown.

[0022] Marked in the attached diagram: 1. Bridge arm; 11. Clearance groove; 2. Bracket positioning surface; 3. Connecting shaft; 31. Connecting section; 32. Nut; 33. Washer; 4. Gear shaft; 41. Bearing; 42. Cover; 43. First positioning surface; 44. Retaining ring groove; 45. Screw hole; 5. Transmission gear; 51. Shaft hole; 52. Limiting groove; 53. Weight reduction groove; 54. Rib; 6. Protective cover; 61. Second positioning surface; 62. Sight hole; 63. Fastener; 7. Roller bracket; 71. Rear roller; 72. Coagulating roller; 721. Tensioning arm; 722. Mesh ring. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0024] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Figure 1 A three-dimensional structural schematic diagram of a bridge gear according to an embodiment of the present disclosure is shown. Figure 2 A cross-sectional view of a bridge gear according to an embodiment of the present disclosure is shown. Figure 3 A perspective structural diagram of the bridge gear and roller bracket according to an embodiment of this disclosure is shown. Please refer to... Figure 1 , Figure 2 and Figure 3 A bridge gear includes a bridge arm 1 connecting a roller bracket 7, a bearing 41 sleeved on the bridge arm 1, a transmission gear 5, and a cover 42. The bearing 41 is disposed between the bridge arm 1 and the transmission gear 5, rotatably connecting the transmission gear 5 and the bridge arm 1. The transmission gear 5 rotatably connects to the bridge arm 1 to transmit movement between the rear roller 71 and the condensing roller 72. In some embodiments, the transmission gear 5 may be made of an antistatic material such as antistatic polyoxymethylene (POM) to prevent static electricity from attracting lint. Two covers 42 are provided, positioned on opposite sides of the transmission gear 5. One end of the cover 42 contacts the inner ring of the bearing 41, and the other end of the cover 42 is clearance-fitted with the transmission gear 5. This covers the gap between the transmission gear 5 and the bridge arm 1, reducing lint trapping and preventing lint from wearing down the bearing 41 and the transmission gear 5, thus extending their service life. At the same time, it reduces the number of times operators need to clean and maintain bearings 41 and transmission gears 5, thereby reducing downtime in compact spinning and improving spinning efficiency.

[0026] Please refer to Figure 2 and Figure 3 A weight-reducing groove 53 is formed on the transmission gear 5 around its axis. One end of the cover 42 extends into the weight-reducing groove 53, restricting the position of the cover 42 and improving its stability. Simultaneously, when forming the transmission gear 5, if its thickness is too large, it is difficult for the melt to fill the cavity, resulting in an incomplete shape. The cooling rate between the surface and the center of the melt also differs during subsequent cooling, leading to air formation or surface defects. The weight-reducing groove 53 reduces the thickness of the transmission gear 5, facilitating its production and ensuring its structural integrity. The weight-reducing groove 53 allows for a larger tooth surface on the transmission gear 5 while maintaining its structural integrity, resulting in more stable transmission and ensuring the stability of the synchronous operation of the rear roller 71 and the condensing roller 72. Preferably, a rib 54 is raised within the weight-reducing groove 53 along the radial direction of the transmission gear 5. When the transmission gear 5 rotates, it drives the rib 54 to rotate as well. The rib 54 disturbs the airflow, which has a blowing effect on the hair near the weight-reducing groove 53, reducing the accumulation of hair in the weight-reducing groove 53 and further reducing the need for cleaning the transmission gear 5.

[0027] More preferably, a limiting groove 52 is formed in the shaft hole 51 of the transmission gear 5 around the axis of the transmission gear 5. The limiting groove 52 communicates with the side surface of the transmission gear 5. The bearing 41 is engaged in the limiting groove 52. The limiting groove 52 restricts the bearing 41 from sliding to one side along the axis of the transmission gear 5. In some embodiments, a retaining ring groove 44 may also be formed in the shaft hole 51, and a retaining ring (not shown in the figure) is provided in the retaining ring groove 44. The retaining ring is located at the opening of the limiting groove 52, and the retaining ring cooperates with the limiting groove 52 to clamp the bearing 41 and fix the relative position of the bearing 41 and the transmission gear 5.

[0028] Please refer to Figure 2 and Figure 3 A clearance groove 11 is formed on the bridge arm 1 along its radial direction. When installing the bridge arm 1, the clearance groove 11 is positioned facing the tension arm 721 on the roller bracket 7. The tension arm 721 and the mesh ring 722 fitted on the tension arm 721 extend into the clearance groove 11. The clearance groove 11 prevents the bridge arm 1 from interfering with the tension arm 721 and the mesh ring 722.

[0029] Preferably, a connecting shaft 3 is provided at the end of the bridge arm 1 away from the transmission gear 5. A connecting section 31 is provided at the end of the connecting shaft 3 away from the bridge arm 1. A thread is provided on the connecting section 31. Specifically, the connecting shaft 3 passes through the roller bracket 7 along a hole in the roller bracket 7. The connecting section 31 extends out of the roller bracket 7. A washer 33 is provided on the connecting section 31 and a nut 32 is threadedly connected to it to limit the position between the bridge arm 1 and the roller bracket 7.

[0030] More preferably, the change in outer diameter between the bridge arm 1 and the connecting shaft 3 forms a bracket positioning surface 2 facing the roller bracket 7. The bracket positioning surface 2 cooperates with the nut 32 and the washer 33 to fix the bridge arm 1 on the roller bracket 7. The length of the connecting shaft 3 can be longer than the width of the roller bracket 7, allowing the fixed-size transmission gear 5 to adapt to roller brackets 7 of different widths, enhancing the versatility of the bridge gear. When the length of the connecting shaft 3 is longer than the width of the roller bracket 7, a clamping piece can be provided on the connecting shaft 3 to ensure that the nut 32, the washer 33, and the bracket positioning surface 2 clamp the roller bracket 7.

[0031] Please refer to Figure 2 and Figure 3 A gear shaft 4 is located at one end of the bridge arm 1 near the transmission gear 5. The change in outer diameter between the bridge arm 1 and the gear shaft 4 forms a first positioning surface 43. A bearing 41 is fitted onto the gear shaft 4. The first positioning surface 43 contacts the cover 42, limiting the relative position of the bearing 41 and the bridge arm 1. At the same time, the bearing 41 and the first positioning surface 43 clamp and fix a cover 42.

[0032] Preferably, a protective cover 6 is provided at the end of the gear shaft 4 away from the bridge arm 1. The change in outer diameter between the protective cover 6 and the gear shaft 4 forms a second positioning surface 61. The second positioning surface 61 contacts the snap cover 42. The second positioning surface 61 and the first positioning surface 43 cooperate to completely fix the bearing 41 on the gear shaft 4, and at the same time fix the position of all snap covers 42. The protective cover 6 and the gear shaft 4 are connected by a fastener 63. The fastener 63 can be a bolt, and a screw hole 45 is provided on the gear shaft 4. The fastener 63 is screwed into the screw hole 45 to fix the protective cover 6 on the gear shaft 4.

[0033] More preferably, the protective cover 6 covers the transmission gear 5 to separate the hair from the transmission gear 5, reducing the likelihood of hair getting stuck in the transmission gear 5. The protective cover 6 is provided with a viewing hole 62, which can be a hole of various shapes, allowing the operator to observe the transmission gear 5 in real time through the viewing hole 62.

[0034] The specific installation process of this utility model is as follows: A cover 42 is fitted onto the gear shaft 4, and a bearing 41 and a transmission gear 5 are also fitted onto the gear shaft 4. One end of the cover 42 abuts against the inner ring of the bearing 41, and the other end of the cover 42 extends into the weight-reducing groove 53, where the bearing 41 is engaged in the limiting groove 52. Another cover 42 is fitted onto the gear shaft 4, with one end abutting against the inner ring of the bearing 41 and the other end extending into the weight-reducing groove 53. The two covers 42 are positioned on opposite sides of the bearing 41. A fastener 63 secures a protective cover 6 at the end of the gear shaft 4 away from the bridge arm 1, with the protective cover 6 abutting against one of the covers 42. The installer moves the bridge arm 1, and the connecting shaft 3 passes through the roller bracket 7, fixing the nut 32 and washer 33 onto the connecting section 31. The nut 32, washer 33, and bracket positioning surface 2 clamp the roller bracket 7, fixing the bridge gear onto the roller bracket 7. The transmission gear 5 simultaneously meshes with the rear roller 71 and the coagulating roller 72 to complete the installation of the bridge gear.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bridge gear, characterized in that, The bridge gear includes a bridge arm connecting the roller bracket, a bearing sleeved on the bridge arm, a transmission gear, and a cover; the bearing is located between the bridge arm and the transmission gear, rotatably connecting the transmission gear and the bridge arm; two covers are provided, and the two covers are located on opposite sides of the transmission gear; one end of the cover contacts the inner ring of the bearing, and the other end of the cover is clearance-fitted to the transmission gear.

2. The bridge gear as described in claim 1, characterized in that: A weight-reducing groove is formed on the transmission gear around its axis; one end of the cover extends into the weight-reducing groove.

3. The bridge gear as described in claim 2, characterized in that: Along the radial direction of the transmission gear, the weight-reducing groove has raised ribs.

4. The bridge gear as described in claim 1, characterized in that: Along the radial direction of the bridge arm, a clearance groove is formed on the bridge arm.

5. The bridge gear as described in claim 1, characterized in that: A connecting shaft is provided at the end of the bridge lever arm away from the transmission gear; a connecting section is provided at the end of the connecting shaft away from the bridge lever arm; and a thread is provided on the connecting section.

6. The bridge gear as described in claim 5, characterized in that: The change in outer diameter between the bridge arm and the connecting shaft forms a bracket positioning surface facing the roller bracket.

7. The bridge gear as described in claim 1, characterized in that: A gear shaft is provided at one end of the bridge arm near the transmission gear; the change in outer diameter between the bridge arm and the gear shaft forms a first positioning surface; the bearing is sleeved on the gear shaft; the first positioning surface contacts the cover.

8. The bridge gear as described in claim 7, characterized in that: A protective cover is provided at the end of the gear shaft away from the bridge lever arm; the change in outer diameter between the protective cover and the gear shaft forms a second positioning surface; the second positioning surface contacts the buckle cover.

9. The bridge gear as described in claim 8, characterized in that: The protective cover covers the transmission gear; the protective cover has a viewing hole.

10. The bridge gear as described in claim 1, characterized in that: A limiting groove is formed in the shaft hole of the transmission gear around its axis; the limiting groove communicates with the side of the transmission gear; and the bearing is engaged in the limiting groove.

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