A type of interlocking wear-resistant rotary shuttle

Abstract

This utility model discloses an interlocking wear-resistant rotary shuttle, comprising a rotary shuttle assembly, which includes several separate components. Each separate component includes a shuttle bed, a crescent ring disposed on the outer side of the shuttle bed, a shuttle frame disposed inside the shuttle bed, and several wear-prone areas. Each wear-prone area is provided with an interlocking slot, and a wear-resistant lubrication unit is injection-molded into the interlocking slot. This utility model provides an interlocking wear-resistant rotary shuttle that can automatically add lubricating material during rotation through the interlocking wear-resistant lubrication unit, thereby reducing frictional wear during use.

Description

Technical Field

[0001] This utility model relates to the field of sewing technology, and in particular to an interlocking wear-resistant rotary hook. Background Technology

[0002] For example, publication number "CN223088068U" discloses "a rotary shuttle with an adjustable pressing tip", which includes a rotary shuttle frame, a rotary shuttle bed, a rotary shuttle plate, and a guide plate. The rotary shuttle plate and the guide plate are respectively fixed to the side of the rotary shuttle bed by fastening screws. The rotary shuttle plate includes a pressing tip and a shuttle plate body in a separate state. The pressing tip includes a top plate, a side plate, and a tip. A U-shaped groove is opened in the side plate. The U-shaped groove includes an inclined section. The symmetry line of the inclined section points to the tip and forms an angle α with the horizontal line. The two ends of the inclined section are respectively placed at the outer end point and the tail end of the middle. A screw hole is provided on the side. The U-shaped groove is fixed to the screw hole by a positioning bolt. When the pressing tip and the shuttle plate body are assembled to form the shape of the rotary shuttle plate, the positioning bolt is placed at the outer end point. The part of the top surface of the side that contacts the top plate has a cut-down surface. The cut-down surface contacts the bottom surface of the top plate to form a clearance gap. When the positioning bolt is placed at the outer end point, the clearance gap makes the cut-down surface fit with the top plate. However, in practical applications, these rotary hooks will experience continuous contact wear during use, affecting their service life, especially at high speeds, and require regular lubrication. Summary of the Invention

[0003] In view of the problem mentioned in the background art that the existing technology requires the periodic addition of lubricating oil to reduce friction loss, this utility model provides an interlocking wear-resistant rotary hook, which can add lubricating material itself during the rotation process through the interlocking wear-resistant lubrication unit, thereby reducing friction loss during use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A wear-resistant rotary shuttle includes a rotary shuttle assembly, which includes several separate parts. Each separate part includes a shuttle bed, a crescent ring disposed on the outer side of the shuttle bed, a shuttle frame disposed inside the shuttle bed, and several wear-prone areas. Each wear-prone area is provided with a fitting groove, and a wear-resistant lubrication unit is injection molded into the fitting groove.

[0006] Current conventional rotary hooks are entirely made of metal, with a simple structure. They cannot operate at high speeds without oil, failing to meet the high-speed rotation requirements of over 10,000 revolutions per minute in existing equipment, severely impacting their lifespan and the quality and effect of sewn products. The rotary hook (oscillating hook) is a key component of sewing and embroidery machines, operating at a high-speed rotational friction state of 10,000 revolutions per minute. Currently, rotary hooks in sewing and embroidery machines are made of metal. While metal has good toughness and is easy to process, it also has several drawbacks: 1. Specific lubricating oil must be added to the rotary hook (oscillating hook) regularly during embroidery machine use; otherwise, the product's lifespan will be significantly reduced. Only with lubrication can the lifespan be guaranteed. 2. Under normal use, metal materials have relatively poor wear resistance, resulting in a short lifespan. 3. Metal rotary hooks generate heat during high-speed rotation, causing the hook itself to heat up. Intermittent high-speed rotation and stoppages during operation lead to fatigue failure and thermal fatigue of the metal; the dimensional stability of the metal is also poor when the temperature changes. 4. Metal materials have poor corrosion resistance, are easily oxidized at high temperatures, and have poor resistance to corrosion from acids, alkalis, and salts, which greatly affects their service life; 5. Metal materials have high thermal conductivity, and their temperature is prone to become too high when rotating at high speeds.

[0007] Therefore, to address the aforementioned problems, this application does not employ an all-metal rotary hook structure. Instead, it incorporates interlocking slots on the rotary hook, within which wear-resistant lubrication units are installed. These wear-resistant lubrication units are not made of metal but are formed by mixing solid lubricants, binders, and curing agents in specific proportions. The interlocking slots are positioned on easily worn areas. In existing technologies, these easily worn areas on the rotary hook are prone to wear, resulting in the removal of some metal powder. This metal powder further exacerbates wear during rotation, significantly reducing the lifespan of the metal rotary hook. However, this application replaces the easily worn areas with wear-resistant lubrication units, which inherently possess lubrication properties and are more wear-resistant than metal. Therefore, frictional losses during operation are lower, and the rotation... The smoothness of the rotation is improved; and because the wear-resistant lubrication unit itself has a lubricating effect, even if wear occurs in this area after long-term rotation, the powder generated by the wear will contain solid lubricating powder, which can further lubricate the rotation of the rotary hook, thereby further reducing friction loss and achieving a virtuous cycle. This avoids the situation in the prior art where wear of all-metal rotary hooks will further aggravate wear. At the same time, because the wear-resistant lubrication unit is set on the wear-prone area in this application, the heat generated can be reduced compared to friction between metals, thereby ensuring the stability of the rotary hook during rotation. In addition, the wear-resistant lubrication unit in this application has good chemical properties, is not easy to oxidize, and is corrosion-resistant. At the same time, because the thermal conductivity of the wear-resistant lubrication unit in this application is lower than that of metal materials, the temperature transfer is reduced, avoiding the problem of rapid heating of the rotary hook during rotation. The rotary hook assembly is formed by combining multiple split parts, including the shuttle bed, the ring, and the shuttle frame. There are wear-prone areas on the shuttle bed, the ring, and the shuttle frame, so wear-resistant lubrication units are set on each of them to ensure the wear resistance and lubrication effect of each split part.

[0008] Preferably, the interlocking slot is a through-type slot structure, and the wear-resistant lubrication unit has several friction surfaces formed on the interlocking slot. By setting the interlocking slot as a through-type structure, the wear-resistant lubrication unit can have multiple friction surfaces, which can contact and rub with contact parts in different directions, thereby improving the utilization rate of the wear-resistant lubrication unit.

[0009] Preferably, the wear-resistant lubrication unit includes a middle injection molding unit that is injection molded and fitted onto the shuttle bed. The fitting slots provided on the shuttle bed include an integral slot on one side of the outer ring and a plurality of separate slots on one side of the inner ring. Each of the separate slots is connected to the integral slot. The middle injection molding unit includes an outer side plate connected to the integral slot. The middle injection molding unit also includes a plurality of separate blocks connected to each of the separate slots. Because the structures of the various components are different, and the locations of the wear-prone areas are also different, the shapes of the wear-resistant lubrication units located in different parts are also different. The wear-resistant lubrication unit set on the shuttle is a middle injection molding unit. The fitting slots on the shuttle include integral slots and split slots. The integral slot is located on the outer ring side of the shuttle, while the split slots are connected to the integral slot, but the opening direction is opposite to that of the integral slot, closer to the inner ring side of the shuttle. Therefore, the shape of the middle injection molding unit is adapted to the shape of the fitting slot. The wear-resistant lubrication unit includes an outer plate and split blocks. Each split block is connected to the outer plate, thereby ensuring the integrity of each middle injection molding unit and ensuring the stability of the connection with the fitting slot.

[0010] Preferably, the shuttle bed includes an inner ring stepped groove, and the split block has an end face flush with the stepped surface of the inner ring stepped groove at one end near the inner ring of the shuttle bed. The inner ring stepped groove is designed on one side of the inner ring of the shuttle bed. The inner ring stepped groove has a ring-shaped structure with steps. Because the split block is positioned near the inner ring stepped groove and the interlocking slot is through-hole, one end of the split block extends into the inner ring stepped groove, and the split block is flush with the stepped surface, thus ensuring that the split block does not interfere with the inner ring stepped groove.

[0011] Preferably, the wear-resistant lubrication unit includes an inner injection-molded unit molded and fitted onto the shuttle frame. The fitting slot on the shuttle frame includes a main through slot, which is connected to a transverse sub-slot. The inner injection-molded unit includes a vertical column, and a horizontal column is connected to the vertical column. The inner injection-molded unit is mounted on the shuttle frame, and the fitting slot on the shuttle frame includes a main through slot, with a transverse sub-slot on the main through slot. The axial direction of the main through slot is the same as the axial direction of the entire rotary shuttle, while the axial direction of the transverse sub-slot is perpendicular to the axial direction of the shuttle frame, thus forming a three-way structure. After injection molding, the inner injection-molded unit, which combines the vertical and horizontal columns, forms a mutually constrained structure, thereby ensuring the connection stability between the inner injection-molded unit and the fitting slot. Furthermore, the combination of the horizontal and vertical columns ensures lubrication and wear resistance in all directions.

[0012] Preferably, expansion discs are provided at both ends of the vertical column, and the cross-section of the vertical column is "I"-shaped. The expansion discs on the vertical column have a cross-sectional area that is larger than the overall size of the vertical column, thus forming an "I"-shaped structure on the cross-section of the vertical column. This structure can form a barb structure, ensuring the connection stability between the inner injection molding unit and the fitting slot.

[0013] Preferably, the shuttle frame includes an outer block, and the fitting slots on the shuttle frame are provided on the outer block. The end faces of the vertical and horizontal columns are exposed on various surfaces of the outer block. The outer block is provided on the shuttle frame and protrudes relative to the shuttle frame. The inner injection molding unit provided on the outer block can form wear-resistant and lubricated areas on the contact surfaces of the horizontal and vertical columns in various directions, improving the overall wear resistance and lubrication.

[0014] Preferably, the wear-resistant lubrication unit includes an outer injection-molded unit that is injection-molded and fitted onto the lunar ring. The fitting groove on the lunar ring includes an annular groove, which has several through grooves and split holes. The outer injection-molded unit includes an annular plate, which has connecting blocks connecting the through grooves and connecting posts connecting the split holes. The fitting groove on the lunar ring includes an annular groove, which has through grooves and split holes. The outer injection-molded unit includes an annular plate, which is fitted and connected to the annular groove. The annular plate has connecting blocks and connecting posts. The connecting blocks connect to the through grooves, and the connecting posts connect to the split holes, ensuring the stability of the connection and forming wear-resistant contact surfaces in multiple directions.

[0015] Preferably, the sidewalls of the through groove are inclined. This inclined sidewall design facilitates injection molding, increases the contact area, and improves the reliability of the connection between the through groove and the connecting block.

[0016] Preferably, the through groove and the split hole are staggered. This staggered arrangement improves the stability of the connection, ensures the reliability of the connection in each area, and enhances uniformity.

[0017] The beneficial effects of this utility model are as follows: (1) It can improve the wear resistance of the rotary hook, improve the smoothness of the working process, and further improve the lubrication effect when the wear-resistant lubrication unit is worn, reduce the dependence on lubricating fluid, and avoid further increasing wear during the working process. (2) It can improve the connection stability between the wear-resistant lubrication unit and the interlocking slot, prevent detachment, and ensure the structural strength and stability of the rotary hook assembly. Attached Figure Description

[0018] Figure 1 This is an exploded view of the present invention.

[0019] Figure 2 This is an exploded view of Example 2.

[0020] Figure 3 This is an exploded view of Example 3.

[0021] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0022] Figure 5 This is the first exploded view of Example 4.

[0023] Figure 6 This is the second exploded view of Example 4.

[0024] In the picture: 1. Rotary shuttle assembly, 11. Separate parts, 12. Easily worn areas, 13. Fitting slots; 2 shuttle bed, 21 integral grooving, 22 split grooving, 23 inner ring stepped groove; 31. Circular groove, 32. Through groove, 33. Split hole; 4 shuttle frame, 41 main through slot, 42 transverse slot, 43 external connecting block; 5 wear-resistant lubrication units; 51 Injection unit, 511 Outer sheet, 512 Separate block, 513 End face; 52 Internal injection molding unit, 521 vertical column, 522 horizontal column, 523 expansion plate; 53 External injection molding unit, 531 Ring plate, 532 Connecting block, 533 Connecting column. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1: like Figure 1 As shown, a wear-resistant rotary shuttle includes a rotary shuttle assembly 1, which includes several separate parts 11. Each separate part 11 includes a shuttle bed 2, a crescent ring 3 disposed on the outside of the shuttle bed 2, a shuttle frame 4 disposed inside the shuttle bed 2, and several wear-prone areas 12. Each wear-prone area 12 is provided with a fitting groove 13, and a wear-resistant lubrication unit 5 is injection molded and connected in the fitting groove.

[0027] Current conventional rotary hooks are entirely made of metal, with a simple structure. They cannot operate at high speeds without oil, failing to meet the high-speed rotation requirements of over 10,000 revolutions per minute in existing equipment, severely impacting their lifespan and the quality and effect of sewn products. The rotary hook (oscillating hook) is a key component of sewing and embroidery machines, operating at a high-speed rotational friction state of 10,000 revolutions per minute. Currently, rotary hooks in sewing and embroidery machines are made of metal. While metal has good toughness and is easy to process, it also has several drawbacks: 1. Specific lubricating oil must be added to the rotary hook (oscillating hook) regularly during embroidery machine use; otherwise, the product's lifespan will be significantly reduced. Only with lubrication can the lifespan be guaranteed. 2. Under normal use, metal materials have relatively poor wear resistance, resulting in a short lifespan. 3. Metal rotary hooks generate heat during high-speed rotation, causing the hook itself to heat up. Intermittent high-speed rotation and stoppages during operation lead to fatigue failure and thermal fatigue of the metal; the dimensional stability of the metal is also poor when the temperature changes. 4. Metal materials have poor corrosion resistance, are easily oxidized at high temperatures, and have poor resistance to corrosion from acids, alkalis, and salts, which greatly affects their service life; 5. Metal materials have high thermal conductivity, and their temperature is prone to become too high when rotating at high speeds.

[0028] Therefore, to address the aforementioned problems, this embodiment does not employ an all-metal rotary shuttle structure. Instead, it features an interlocking slot 13 on the rotary shuttle, and a wear-resistant lubrication unit 5 is provided on the interlocking slot 13. The wear-resistant lubrication unit 5 is not made of metal, but rather a structure formed by mixing solid lubricants, binders, and curing agents in a specific ratio. The interlocking slot 13 is positioned on the wear-prone area 12. In the prior art, the wear-prone area 12 on the rotary shuttle is prone to wear, resulting in the removal of some metal powder. This metal powder further exacerbates the wear of the rotary shuttle during rotation, significantly reducing its service life. However, in this application, the wear-prone area 12 is replaced with the wear-resistant lubrication unit 5. The wear-resistant lubrication unit 5 itself has a certain lubricating effect and is more wear-resistant than metal, thus reducing frictional losses during operation. Furthermore, the rotational smoothness is improved; and since the wear-resistant lubrication unit 5 itself has a lubricating effect, even if wear occurs at this point after long-term rotation, the powder generated by the wear will contain solid lubricating powder, which can further lubricate the rotation of the rotary hook, thereby further reducing frictional loss and achieving a virtuous cycle. This avoids the situation in the prior art where the wear of all-metal rotary hooks will further aggravate wear; at the same time, since the wear-resistant lubrication unit 5 is provided on the wear-prone area 12 in this application, the heat generated can be reduced compared to friction between metals, thereby ensuring the stability of the rotary hook during rotation; at the same time, the wear-resistant lubrication unit 5 in this application has good chemical properties, is not easy to oxidize, and is corrosion-resistant; and at the same time, since the thermal conductivity of the wear-resistant lubrication unit 5 in this application is lower than that of metal materials, the temperature transfer is reduced, avoiding the problem of rapid heating of the rotary hook during rotation. The rotary shuttle assembly 1 is formed by combining multiple separate parts 11, which include a shuttle bed 2, a crescent ring 3, and a shuttle frame 4. Each of the shuttle bed 2, crescent ring 3, and shuttle frame 4 has a wear-prone area 12, so wear-resistant lubrication units 5 are provided to ensure the wear resistance and lubrication effect of each separate part 11.

[0029] like Figure 1 As shown, the interlocking slot 13 is a through-type slot structure, and the wear-resistant lubrication unit 5 has several friction surfaces formed on the interlocking slot 13. By setting the interlocking slot 13 as a through-type structure, the wear-resistant lubrication unit 5 can have multiple friction surfaces, which can contact and rub with contact parts in different directions, thereby improving the utilization rate of the wear-resistant lubrication unit 5.

[0030] Example 2: like Figure 1As shown, a wear-resistant rotary shuttle includes a rotary shuttle assembly 1, which includes several separate parts 11. Each separate part 11 includes a shuttle bed 2, a crescent ring 3 disposed on the outside of the shuttle bed 2, a shuttle frame 4 disposed inside the shuttle bed 2, and several wear-prone areas 12. Each wear-prone area 12 is provided with a fitting groove 13, and a wear-resistant lubrication unit 5 is injection molded and connected in the fitting groove.

[0031] like Figure 1 As shown, the interlocking slot 13 is a through-type slot structure, and the wear-resistant lubrication unit 5 has several friction surfaces formed on the interlocking slot 13. By setting the interlocking slot 13 as a through-type structure, the wear-resistant lubrication unit 5 can have multiple friction surfaces, which can contact and rub with contact parts in different directions, thereby improving the utilization rate of the wear-resistant lubrication unit 5.

[0032] like Figure 2 As shown, the wear-resistant lubrication unit 5 includes a middle injection molding unit 51 injection molded and fitted onto the shuttle 2. The fitting slot 13 provided on the shuttle 2 includes an integral slot 21 provided on one side of the outer ring and a plurality of separate slots 22 provided on one side of the inner ring. Each separate slot 22 is connected to the integral slot 21. The middle injection molding unit 51 includes an outer side piece 511 connected to the integral slot 21. The middle injection molding unit 51 includes a plurality of separate blocks 512 connected to each separate slot 22. Since the structures of the various components 11 are not the same, and the positions of the various wear-prone areas 12 are also different, the shapes of the wear-resistant lubrication units 5 set in different locations are not the same. The wear-resistant lubrication unit 5 set on the shuttle 2 is a middle injection molding unit 51. The fitting slot 13 on the shuttle 2 includes an integral slot 21 and a split slot 22. The integral slot 21 is set on the outer ring side of the shuttle 2, while the split slot 22 is connected to the integral slot 21, but the opening direction is opposite to that of the integral slot 21, and it is closer to the inner ring side of the shuttle 2. Therefore, the shape of the middle injection molding unit 51 is adapted to the shape of the fitting slot 13. The wear-resistant lubrication unit 5 includes an outer plate 511 and a split block 512. Each split block 512 is connected to the outer plate 511, thereby ensuring the integrity of each middle injection molding unit 51 and ensuring the connection stability with the fitting slot 13.

[0033] like Figure 2As shown, the shuttle bed 2 includes an inner ring stepped groove 23. The split block 512 has an end face 513 that is flush with the stepped surface of the inner ring stepped groove 23 at one end near the inner ring of the shuttle bed 2. The inner ring stepped groove 23 is designed on one side of the inner ring of the shuttle bed 2. The inner ring stepped groove 23 has a ring structure with a stepped structure. Since the split block 512 is located near the inner ring stepped groove 23 and the fitting slot 13 is through-hole, one end of the split block 512 will extend into the inner ring stepped groove 23 and be flush with the stepped surface, thereby ensuring that the split block 512 will not cause interference.

[0034] Example 3: like Figure 1 As shown, a wear-resistant rotary shuttle includes a rotary shuttle assembly 1, which includes several separate parts 11. Each separate part 11 includes a shuttle bed 2, a crescent ring 3 disposed on the outside of the shuttle bed 2, a shuttle frame 4 disposed inside the shuttle bed 2, and several wear-prone areas 12. Each wear-prone area 12 is provided with a fitting groove 13, and a wear-resistant lubrication unit 5 is injection molded and connected in the fitting groove.

[0035] like Figure 1 As shown, the interlocking slot 13 is a through-type slot structure, and the wear-resistant lubrication unit 5 has several friction surfaces formed on the interlocking slot 13. By setting the interlocking slot 13 as a through-type structure, the wear-resistant lubrication unit 5 can have multiple friction surfaces, which can contact and rub with contact parts in different directions, thereby improving the utilization rate of the wear-resistant lubrication unit 5.

[0036] like Figure 3 , 4 As shown, the wear-resistant lubrication unit 5 includes an inner injection molding unit 52 that is injection molded and fitted onto the shuttle frame 4. The fitting slot 13 set on the shuttle frame 4 includes a main through slot 41, and a transverse sub-slot 42 is connected to the main through slot 41. The inner injection molding unit 52 includes a vertical column 521, and a horizontal column 522 is connected to the vertical column 521. The inner injection molding unit 52 is set on the shuttle frame 4. The fitting slot 13 set on the shuttle frame 4 includes a main through slot 41 and a transverse slot 42 set on the main through slot 41. The axial direction of the main through slot 41 is the same as the axial direction of the entire rotary shuttle, while the axial direction of the transverse slot 42 is perpendicular to the axial direction of the shuttle frame 4, thus forming a three-way structure. After injection molding, the inner injection molding unit 52, which combines the vertical column 521 and the horizontal column 522, is formed, creating a mutually constrained structure. This ensures the connection stability between the inner injection molding unit 52 and the fitting slot 13, and the horizontal column 522 can combine with the vertical column 521 to ensure a lubricating and wear-resistant effect in all directions.

[0037] like Figure 4As shown, expansion discs 523 are provided at both ends of the vertical column 521, and the cross-section of the vertical column 521 is "I" shaped. The expansion discs 523 are provided on the vertical column 521, and the cross-sectional area of ​​the expansion discs 523 is larger than the overall size of the vertical column 521. Therefore, an "I" shaped structure is formed on the cross-section of the vertical column 521, which can form a barb structure and ensure the connection stability between the inner injection molding unit 52 and the fitting slot 13.

[0038] like Figure 3 , 4 As shown, the shuttle frame 4 includes an outer block 43. A fitting slot 13 on the shuttle frame 4 is provided on the outer block 43. The end faces 513 of the vertical column 521 and the horizontal column 522 are exposed on various surfaces of the outer block 43. The outer block 43 is provided on the shuttle frame 4 and protrudes relative to the shuttle frame 4. The inner injection molding unit 52 provided on the outer block 43 can form wear-resistant and lubricated areas on the contact surfaces of the horizontal column 522 and the vertical column 521 in various directions, improving the overall wear resistance and lubrication.

[0039] Example 4: like Figure 1 As shown, a wear-resistant rotary shuttle includes a rotary shuttle assembly 1, which includes several separate parts 11. Each separate part 11 includes a shuttle bed 2, a crescent ring 3 disposed on the outside of the shuttle bed 2, a shuttle frame 4 disposed inside the shuttle bed 2, and several wear-prone areas 12. Each wear-prone area 12 is provided with a fitting groove 13, and a wear-resistant lubrication unit 5 is injection molded and connected in the fitting groove.

[0040] like Figure 1 As shown, the interlocking slot 13 is a through-type slot structure, and the wear-resistant lubrication unit 5 has several friction surfaces formed on the interlocking slot 13. By setting the interlocking slot 13 as a through-type structure, the wear-resistant lubrication unit 5 can have multiple friction surfaces, which can contact and rub with contact parts in different directions, thereby improving the utilization rate of the wear-resistant lubrication unit 5.

[0041] like Figure 5 , 6As shown, the wear-resistant lubrication unit 5 includes an outer injection-molded unit 53 that is injection-molded and fitted onto the lunar ring 3. The fitting slot 13 on the lunar ring 3 includes an annular groove 31, on which several through grooves 32 and split holes 33 are provided. The outer injection-molded unit 53 includes an annular plate 531, on which connecting blocks 532 connecting the through grooves 32 and connecting posts 533 connecting the split holes 33 are provided. The fitting slot 13 on the lunar ring 3 includes an annular groove 31, in which through grooves 32 and split holes 33 are provided. The outer injection-molded unit 53 includes an annular plate 531, in which the annular plate 531 is fitted and connected to the annular groove 31. The annular plate 531 is provided with connecting blocks 532 and connecting posts 533. The connecting blocks 532 are connected to the through grooves 32, and the connecting posts 533 are connected to the split holes 33, ensuring the stability of the connection and forming wear-resistant contact surfaces in multiple directions.

[0042] like Figure 5 , 6 As shown, the sidewalls of the through groove 32 are inclined. The inclined structure of the sidewalls of the through groove 32 facilitates injection molding, while also increasing the contact area and improving the connection reliability between the through groove 32 and the connecting block 532.

[0043] like Figure 5 , 6 As shown, the through groove 32 and the split hole 33 are staggered. This staggered arrangement of the through groove 32 and the split hole 33 improves the stability of the connection, ensures the reliability of the connection in each area, and enhances uniformity.

Claims

1. A type of interlocking wear-resistant rotary shuttle, characterized in that, The device includes a rotary shuttle assembly, which comprises several separate components. Each separate component includes a shuttle bed, a crescent ring disposed on the outer side of the shuttle bed, a shuttle frame disposed inside the shuttle bed, and several wear-prone areas. Each wear-prone area is provided with an interlocking slot, and a wear-resistant lubrication unit is injection molded into the interlocking slot.

2. The interlocking wear-resistant rotary hook according to claim 1, characterized in that, The interlocking slot is a through-type slot structure, and the wear-resistant lubrication unit has several friction surfaces formed on the interlocking slot.

3. The interlocking wear-resistant rotary hook according to claim 1, characterized in that, The wear-resistant lubrication unit includes a middle injection molding unit that is injection molded and fitted onto the shuttle bed. The fitting slots on the shuttle bed include an integral slot on one side of the outer ring and several separate slots on one side of the inner ring. Each of the separate slots is connected to the integral slot. The middle injection molding unit includes an outer side plate connected to the integral slot. The middle injection molding unit also includes several separate blocks connected to each of the separate slots.

4. The interlocking wear-resistant rotary hook according to claim 3, characterized in that, The shuttle bed includes an inner ring stepped groove, and the split block has an end face that is flush with the stepped surface of the inner ring stepped groove at one end near the inner ring of the shuttle bed.

5. A fitted wear-resistant rotary hook according to any one of claims 1-4, characterized in that, The wear-resistant lubrication unit includes an inner injection molding unit that is injection molded and fitted onto the shuttle frame. The fitting slot on the shuttle frame includes a main through slot, and a transverse sub-slot is connected to the main through slot. The inner injection molding unit includes a vertical column, and a horizontal column is connected to the vertical column.

6. The interlocking wear-resistant rotary hook according to claim 5, characterized in that, The vertical column is provided with expansion plates at both ends, and the cross-section of the vertical column is "I" shaped.

7. The interlocking wear-resistant rotary hook according to claim 5, characterized in that, The shuttle frame includes an outer block, and the fitting slots on the shuttle frame are provided on the outer block. The end faces of the vertical column and the horizontal column are respectively exposed on the respective surfaces of the outer block.

8. A fitted wear-resistant rotary hook according to any one of claims 1-4, characterized in that, The wear-resistant lubrication unit includes an outer injection molding unit that is injection molded and fitted onto the lunar ring. The fitting slot on the lunar ring includes an annular groove. The annular groove is provided with a plurality of through grooves and split holes. The outer injection molding unit includes an annular plate. The annular plate is provided with connecting blocks that connect to the through grooves and connecting posts that connect to the split holes.

9. A fitted wear-resistant rotary hook according to claim 8, characterized in that, The sidewalls of the through groove are inclined.

10. A fitted wear-resistant rotary hook according to claim 8, characterized in that, The through groove and the split hole are misaligned.

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