Central lifting structure of saddle foundation ring

Abstract

The utility model discloses a central lifting structure of a saddle foundation ring. The central lifting structure comprises a base, the saddle foundation ring, a linkage pinion, a middle adjusting gear, a thrust ball bearing, a deep groove ball bearing, a lock washer, a round nut, a guide rod and a buffer assembly. The lower end of the gear shaft of the linkage pinion is provided with the round nut and the stop ring for locking, the linkage pinion can be positioned, the gear shaft of the coupling pinion is further provided with the thrust ball bearing and the deep groove ball bearing, so that the coupling pinion can still easily rotate after being positioned, and the positioning precision of the coupling pinion is improved. Zero clearance error during lifting of the saddle bottom ring is achieved, the guide rod can make sliding of the saddle bottom ring more stable, when the saddle bottom ring moves downwards, the saddle bottom ring can make contact with the buffering assembly, the upper buffering layer, the lower buffering layer and the protruding ring can buffer the saddle bottom ring, pressure of a supporting component is reduced, and the middle ring can improve the overall compression resistance. And the lifting structure has a better use effect.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to a central lifting structure for a saddle base ring. Background Technology

[0002] Circular knitting machines, also known as circular weft knitting machines, have seen rapid development due to their numerous loop-forming systems, high speed, high output, rapid pattern changes, good fabric quality, fewer processes, and strong product adaptability. During the knitting process, the height of the saddle base ring needs to be adjusted according to the fabric requirements; therefore, a lifting structure is required to achieve this adjustment function.

[0003] Currently, most saddle base ring height adjustments are achieved using a shim-type lifting structure. However, in actual use, during manual installation, the shim thickness needs to be controlled by feel, as the linkage pinion needs to rotate and cannot be directly and seamlessly locked. Therefore, the linkage pinion will have vertical errors when controlling the lifting of the saddle base ring, resulting in poor performance. Utility Model Content

[0004] The purpose of this invention is to provide a central lifting structure for the bottom ring of a saddle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a central lifting structure for a saddle base ring, comprising a base, a saddle base ring, a linkage pinion, a center adjustment gear, a thrust ball bearing, a deep groove ball bearing, a locking washer, a round nut, a guide rod, and a buffer assembly. The saddle base ring is located at the upper end of the base. A linkage pinion is located inside the base, and a center adjustment gear meshes with the linkage pinion on its side inside the base. A gear shaft passes through the middle of the linkage pinion, and a [missing information - likely a design feature] is located at the middle end of the gear shaft. The system includes a thrust ball bearing and a deep groove ball bearing at the lower end of the gear shaft of the linkage pinion. The linkage pinion rotates with the base via the thrust ball bearing and the deep groove ball bearing. A retaining washer is fitted on the outer side of the lower end of the gear shaft of the linkage pinion, and the lower end of the gear shaft of the linkage pinion is locked by a round nut. The upper end of the gear shaft of the linkage pinion is connected to the saddle base ring via a bushing. A guide rod is connected to the upper right side of the base, and the saddle base ring slides with the guide rod. A buffer assembly is connected to the upper left side of the base.

[0006] Preferably, the buffer assembly includes an intermediate ring, an upper buffer layer, a lower buffer layer, and a convex ring. The upper buffer layer is wrapped around the upper end of the intermediate ring, and the lower buffer layer is wrapped around the lower end of the intermediate ring. The upper buffer layer and the lower buffer layer are bonded to each other, and two sets of convex rings are connected to the upper end of the upper buffer layer.

[0007] Preferably, the thrust ball bearing and the deep groove ball bearing are aligned with the same vertical line.

[0008] Preferably, the buffer assembly is annular with a hollow center.

[0009] Preferably, the surface of the convex ring is arc-shaped, and the tops of the two sets of convex rings are flush.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By locking the pinion gear with a round nut and a retaining ring at the lower end of the pinion shaft, the pinion gear can be positioned. The pinion shaft is also equipped with thrust ball bearings and deep groove ball bearings, allowing it to rotate easily even after positioning. This ensures zero clearance error during saddle base ring lifting and lowering. The guide rod further stabilizes the sliding of the saddle base ring. When the saddle base ring moves downwards, it contacts the buffer assembly. The upper buffer layer, lower buffer layer, and convex ring buffer the saddle base ring, reducing pressure on the supporting components. The intermediate ring enhances the overall compressive strength, resulting in a better lifting structure performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a top view of the buffer assembly of this utility model;

[0014] Figure 3 This is a cross-sectional structural diagram of the buffer component of this utility model.

[0015] In the diagram: Base-1, Saddle base ring-2, Linkage pinion-3, Adjustment gear-4, Thrust ball bearing-5, Deep groove ball bearing-6, Stop washer-7, Round nut-8, Guide rod-9, Buffer assembly-10, Intermediate ring-101, Upper buffer layer-102, Lower buffer layer-103, Convex ring-104. Detailed Implementation

[0016] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0017] Please see Figures 1-3This utility model provides a central lifting structure for a saddle base ring, including a base 1, a saddle base ring 2, a linkage pinion 3, a center adjustment gear 4, a thrust ball bearing 5, a deep groove ball bearing 6, a locking washer 7, a round nut 8, a guide rod 9, and a buffer assembly 10. The saddle base ring 2 is mounted on the upper end of the base 1. A linkage pinion 3 is installed inside the base 1. A center adjustment gear 4 meshes with the side of the linkage pinion 3 inside the base 1. The linkage pinion 3 drives the center adjustment gear 4 to rotate, thereby causing the center adjustment gear 4 to move the saddle base ring 2 vertically. A gear shaft passes through the middle of the linkage pinion 3. A thrust ball bearing 5 is installed at the middle end of the gear shaft of the linkage pinion 3, and a deep groove ball bearing 6 is installed at the lower end of the gear shaft of the linkage pinion 3. The thrust ball bearing 5 and the deep groove ball bearing 6 are on the same vertical line. The linkage pinion 3 is rotated with the base 1 through the thrust ball bearing 5 and the deep groove ball bearing 6, so that the linkage pinion 3 can still rotate easily after installation. The lower end of the gear shaft of the linkage pinion 3 is fitted with a retaining washer 7, and the lower end of the gear shaft of the linkage pinion 3 is locked by a round nut 8. The retaining washer 7 is located between the deep groove ball bearing 6 and the round nut 8. The upper end of the retaining washer 7 is in contact with the deep groove ball bearing 6. The upper end of the gear shaft of the linkage pinion 3 is connected to the saddle base ring 2 through a bushing. The upper right side of the base 1 is connected with a guide rod 9 to enhance the stability of the saddle base ring 2 when sliding. The saddle base ring 2 and the guide rod 9 are in sliding engagement. The upper left side of the base 1 is connected with a buffer assembly 10.

[0018] The buffer assembly 10 is ring-shaped with a hollow center for easy installation and connection. The buffer assembly 10 includes a middle ring 101, an upper buffer layer 102, a lower buffer layer 103, and a convex ring 104. The middle ring 101 is made of shape memory metal, which can enhance the overall compressive strength. The upper buffer layer 102 is wrapped around the upper end of the middle ring 101, and the lower buffer layer 103 is wrapped around the lower end of the middle ring 101. The upper buffer layer 102 and the lower buffer layer 103 are bonded to each other. Two sets of convex rings 104 are connected to the upper end of the upper buffer layer 102. The upper buffer layer 102, the lower buffer layer 103, and the convex rings 104 are all made of rubber, which can improve the overall buffer performance.

[0019] Among them, the surface of the convex ring 104 is arc-shaped, and the tops of the two sets of convex rings 104 are flush, which can ensure that the overall force is uniform.

[0020] Specifically, the upper end of the gear shaft of the linkage pinion 3 is first connected to the external rotating component, which then enables the rotation of the linkage pinion 3 inside the base 1. The linkage pinion 3 can drive the intermediate adjustment gear 4 to rotate, so that the intermediate adjustment gear 4 acts on the saddle base ring 2 to realize the vertical displacement adjustment of the saddle base ring 2. The lower end of the gear shaft of the linkage pinion 3 is locked with the stop ring 7 through the round nut 8, which can realize the positioning of the linkage pinion 3. Furthermore, the gear shaft of the linkage pinion 3 is also equipped with a thrust ball bearing 5 and a deep groove ball bearing 6, which allows the linkage pinion 3 to rotate easily after being positioned, achieving zero clearance error when the saddle base ring 2 is raised or lowered.

[0021] The guide rod 9 makes the sliding of the saddle base ring 2 more stable. When the saddle base ring 2 moves downward, it will contact the buffer assembly 10. The upper buffer layer 102, the lower buffer layer 103 and the convex ring 104 can buffer the saddle base ring 2 and reduce the pressure on the supporting components. The middle ring 101 can improve the overall compressive strength.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A central lifting structure for a saddle base ring, characterized in that: The system includes a base (1), a saddle base ring (2), a linkage pinion (3), a center adjustment gear (4), a thrust ball bearing (5), a deep groove ball bearing (6), a locking washer (7), a round nut (8), a guide rod (9), and a buffer assembly (10). The saddle base ring (2) is provided at the upper end of the base (1). The linkage pinion (3) is provided inside the base (1). The center adjustment gear (4) meshes with the linkage pinion (3) on the side inside the base (1). A gear shaft runs through the middle of the linkage pinion (3). A thrust ball bearing (5) is provided at the middle end of the gear shaft of the linkage pinion (3). The lower end of the gear shaft of the linkage pinion (3) is provided with a deep groove ball bearing (6). The linkage pinion (3) is rotatably engaged with the base (1) through the thrust ball bearing (5) and the deep groove ball bearing (6). A stop washer (7) is sleeved on the outer side of the lower end of the gear shaft of the linkage pinion (3). The lower end of the gear shaft of the linkage pinion (3) is locked by a round nut (8). The upper end of the gear shaft of the linkage pinion (3) is connected to the saddle base ring (2) through a bushing. A guide rod (9) is connected to the upper right side of the base (1). The saddle base ring (2) is slidably engaged with the guide rod (9). A buffer assembly (10) is connected to the upper left side of the base (1).

2. The central lifting structure of the saddle base ring according to claim 1, characterized in that: The buffer assembly (10) includes an intermediate ring (101), an upper buffer layer (102), a lower buffer layer (103), and a convex ring (104). The upper end of the intermediate ring (101) is wrapped with the upper buffer layer (102), and the lower end of the intermediate ring (101) is wrapped with the lower buffer layer (103). The upper buffer layer (102) and the lower buffer layer (103) are bonded to each other. The upper end of the upper buffer layer (102) is connected to two sets of convex rings (104).

3. The central lifting structure of the saddle base ring according to claim 1, characterized in that: The thrust ball bearing (5) and the deep groove ball bearing (6) are on the same vertical line.

4. The central lifting structure of the saddle base ring according to claim 1, characterized in that: The buffer component (10) is in the shape of a ring with a hollow center.

5. The central lifting structure of the saddle base ring according to claim 2, characterized in that: The surface of the convex ring (104) is arc-shaped, and the tops of the two sets of convex rings (104) are flush.

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