Shaft steel wire retainer assembly mechanism

CN224826351UActive Publication Date: 2026-10-09BOSHENGJIE PRECISION CASTING CHONGQING CO LTD
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Patent Information

Application Number
CN202522144336.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-10-09
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种轴用钢丝挡圈装配机构,旨在解决现有技术中的手工操作效率低下,劳动强度大,难以满足现代化批量生产的需求;其次,操作力度和角度难以精确控制,极易导致挡圈过度变形甚至断裂,或者因装配不到位而影响产品质量,造成废品率升高;最后,装配过程中挡圈容易从工具上滑脱崩飞,存在划伤操作人员的安全隐患,同时也可能损坏工件表面的问题

Benefits of technology

[0026]1、本方案中,通过顺时针旋转把手驱动丝杆转动,同时丝杆的旋转运动被转换为螺母沿丝杆轴向的向下直线运动,从而带动其下端的装配座一同下移,且推动其内的钢丝挡圈进入锥形座的表面,根据锥形座的外锥面逐步扩张钢丝挡圈,使其内径逐渐变大,装配座持续下压,被扩张的钢丝挡圈在锥形座的引导下越过轴端最大直径处,当挡圈被推送至轴上的预定装配槽位时,其依靠自身弹性收缩卡入槽中,完成装配,替代了传统手工撬装,显著提高了装配效率,并大幅降低了操作者的劳动强度,有效避免了挡圈因受力不均而产生的永久性塑性变形或装配歪斜,保证了装配到位率和产品的一致性,确保轴件在装配过程中始终保持垂直和稳定,防止轴件晃动或偏移,进一步保证了装配精度,避免了挡圈崩飞伤人的风险,有效保护轴件和挡圈表面,防止划伤,提升了操作的安全性和对工件的保护性。

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Abstract

The utility model provides a kind of axle steel wire baffle ring assembly mechanism, belong to mechanical assembly technical field, the axle steel wire baffle ring assembly mechanism, including base;Mounting bracket is fixedly connected to the upper end of base, the upper end of base is fixedly connected with circular clamp, the outer surface of circular clamp is provided with fixed frame;Assembly frame, assembly frame is set to the inner surface of mounting bracket, replaced traditional manual pry dress, significantly improved assembly efficiency, and greatly reduced the labor intensity of operator, effectively avoided permanent plastic deformation or assembly skew of baffle ring due to uneven stress, ensured assembly in-place rate and product consistency, ensure that shaft piece always remains perpendicular and stable during assembly process, prevent shaft piece from shaking or shifting, further ensure assembly accuracy, avoid the risk of baffle ring collapse and injure people, effectively protect shaft piece and baffle ring surface, prevent scratching, improve the safety of operation and the protectivity to workpiece.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical assembly technology, and specifically relates to an assembly mechanism for a steel wire retaining ring for a shaft. Background Technology

[0002] A wire retaining ring for a shaft is a common fastener used to secure the axial position of components on a shaft. Traditional assembly methods often involve manual operation, using simple tools such as pliers to pry open the retaining ring and insert it into the groove on the shaft.

[0003] However, the aforementioned traditional manual assembly method has many drawbacks: First, manual operation is inefficient and labor-intensive, making it difficult to meet the needs of modern mass production; second, the operating force and angle are difficult to control precisely, which can easily lead to excessive deformation or even breakage of the retaining ring, or affect product quality due to improper assembly, resulting in an increased scrap rate; finally, the retaining ring is prone to slipping off the tool and flying off during the assembly process, posing a safety hazard of scratching the operator, and may also damage the surface of the workpiece.

[0004] Therefore, there is an urgent need in the existing technology for a special mechanism that can achieve fast, reliable and safe assembly of wire retaining rings for shafts in order to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this utility model is to provide a shaft wire retaining ring assembly mechanism, which aims to solve the problems of low efficiency, high labor intensity, and difficulty in meeting the needs of modern mass production in the existing technology of manual operation; secondly, it is difficult to accurately control the operating force and angle, which can easily lead to excessive deformation or even breakage of the retaining ring, or affect product quality due to improper assembly, resulting in an increased scrap rate; finally, the retaining ring is easy to slip off the tool and fly off during the assembly process, which poses a safety hazard of scratching the operator and may also damage the surface of the workpiece.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A shaft wire retaining ring assembly mechanism, comprising:

[0008] Base;

[0009] Mounting bracket, which is fixedly connected to the upper end of the base, and a circular clamp is fixedly connected to the upper end of the base, with a fixing frame provided on the outer surface of the circular clamp;

[0010] An assembly frame, wherein the assembly frame is disposed on the inner surface of a mounting frame, a support plate is fixedly connected to the upper end of the mounting frame, and a conical seat is fixedly connected to the lower end of the assembly frame; and

[0011] An assembly mechanism is provided within the mounting frame to assemble the wire retaining ring.

[0012] As a preferred embodiment of this utility model, the assembly mechanism includes:

[0013] A lead screw, the lower end of which is rotatably connected to the upper end of the assembly frame, and the upper end of which is movably passed through the upper end of the mounting frame and the support plate, and a nut is threaded onto the circumferential surface of the lead screw;

[0014] An assembly base is fixedly connected to the lower end of a nut, and the upper end of the assembly base movably passes through the upper end of an assembly frame. An assembly pad is fixedly connected to the inner surface of the assembly base.

[0015] A limiting component is disposed within the mounting bracket to limit the sliding nut.

[0016] As a preferred embodiment of this utility model, the limiting component includes:

[0017] Two limiting grooves are respectively opened on the inner walls of both sides of the assembly frame. Limiting blocks are slidably connected to the inner surfaces of the two limiting grooves. The adjacent ends of the two limiting blocks and the two ends of the nut are respectively fixedly connected.

[0018] In a preferred embodiment of this utility model, the upper end of the fixing frame is fixedly connected to two protective seats, and the upper end of the lead screw is fixedly connected to a handle.

[0019] As a preferred embodiment of this utility model, it further includes two sets of clamping mechanisms, each set of clamping mechanisms comprising:

[0020] A sliding shell is fixedly connected to the inner surface of the protective base. A pressing shell is slidably connected to the inner surface of the sliding shell. A sliding rod is fixedly connected to one end of the pressing shell, and a clamping base is fixedly connected to one end of the sliding rod.

[0021] An elastic component is disposed within the sliding shell to limit the sliding compression shell.

[0022] As a preferred embodiment of this utility model, the elastic component includes:

[0023] A support shell is fixedly connected to the inner surface of a sliding shell. A pressing rod is slidably connected to the inner surface of the support shell. One end of the pressing rod is fixedly connected to the inner surface of the pressing shell. A spring is sleeved on the outer surface of the support shell.

[0024] As a preferred embodiment of this utility model, the inner surfaces of both clamping seats are provided with clamping pads.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] 1. In this solution, rotating the handle clockwise drives the lead screw to rotate. Simultaneously, the lead screw's rotational motion is converted into a downward linear motion of the nut along the lead screw's axial direction. This causes the mounting base at its lower end to move downwards, pushing the wire retaining ring inside into the surface of the tapered seat. The wire retaining ring gradually expands according to the outer conical surface of the tapered seat, causing its inner diameter to gradually increase. As the mounting base continues to press down, the expanded wire retaining ring, guided by the tapered seat, passes past the maximum diameter of the shaft end. When the retaining ring is pushed to the predetermined mounting slot on the shaft, it elastically contracts and engages. The assembly process is completed in the slot, replacing the traditional manual prying assembly. This significantly improves assembly efficiency and greatly reduces the labor intensity of operators. It effectively avoids permanent plastic deformation or assembly misalignment of the retaining ring caused by uneven force, ensuring the assembly accuracy and product consistency. It ensures that the shaft remains vertical and stable during the assembly process, preventing the shaft from shaking or shifting, further guaranteeing assembly precision, avoiding the risk of the retaining ring flying off and injuring people, effectively protecting the surface of the shaft and retaining ring, preventing scratches, and improving the safety of operation and the protection of the workpiece.

[0027] 2. In this solution, a protective seat is fixed to the upper end of the fixed frame to accommodate and protect the internal components of the clamping mechanism. The handle is fixed to the upper end of the lead screw as a force-applying component for manual operation to drive the lead screw to rotate. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a perspective view of the present utility model;

[0030] Figure 2 This is a first perspective sectional view of the present invention;

[0031] Figure 3 This is a second perspective sectional view of the present invention;

[0032] Figure 4 This utility model Figure 3 A magnified view of section A in the image.

[0033] In the diagram: 1. Base; 2. Mounting bracket; 3. Support plate; 4. Handle; 5. Fixing bracket; 6. Circular clamp; 7. Assembly bracket; 8. Lead screw; 9. Nut; 10. Limiting block; 11. Protective seat; 12. Limiting groove; 13. Assembly seat; 14. Conical seat; 15. Sliding shell; 16. Support shell; 17. Extrusion rod; 18. Spring; 19. Extrusion shell; 20. Sliding rod; 21. Clamping seat; 22. Clamping pad; 23. Assembly pad. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] Please see Figure 1-4 The present invention provides the following technical solution:

[0037] A shaft wire retaining ring assembly mechanism, comprising:

[0038] Base 1;

[0039] Mounting bracket 2 is fixedly connected to the upper end of base 1. A circular clamp 6 is fixedly connected to the upper end of base 1. A fixing bracket 5 is provided on the outer surface of the circular clamp 6.

[0040] Assembly frame 7 is disposed on the inner surface of mounting frame 2. A support plate 3 is fixedly connected to the upper end of mounting frame 2, and a conical seat 14 is fixedly connected to the lower end of assembly frame 7; and

[0041] An assembly mechanism is installed within the mounting frame 2 to assemble the wire retaining ring.

[0042] In a specific embodiment of this utility model, the base 1 serves as the foundation of the entire assembly mechanism, providing a stable mounting base to ensure the mechanism remains stable during operation. The mounting frame 2 is fixed to the upper end of the base 1, forming the main support frame of the mechanism, used to determine and support the relative positions of other core components. The circular clamp 6 is fixed to the upper end of the base 1, used to position and clamp the shaft parts to be assembled, ensuring the shaft's position is fixed during assembly. The fixing frame 5 is set on the outer surface of the circular clamp 6, used to connect and fix subsequent clamping mechanism components. The assembly frame 7 is set on the inner surface of the mounting frame 2, serving as a guide and mounting base for the moving parts in the assembly mechanism. The support plate 3 is fixed to the upper end of the mounting frame 2, providing space for the lead screw 8 to pass through and move, and playing an auxiliary support role. The tapered seat 14 is fixed to the lower end of the assembly frame 7, its surface being tapered to guide and expand the wire retaining ring during assembly, allowing it to pass over the shaft end. The lead screw 8 converts the rotational motion into the linear motion of the nut 9. The assembly frame 7 provides the necessary propulsion force for assembly. The nut 9 is threaded with the lead screw 8, converting the rotational motion of the lead screw 8 into its own linear motion. The assembly seat 13 is fixed to the lower end of the nut 9 and moves linearly with the nut 9. The assembly pad 23 is fixed to the inner surface of the assembly seat 13 to protect the retaining ring when it is pushed and to evenly transmit pressure. The limiting groove 12 is opened on both sides of the inner wall of the assembly frame 7 to provide a precise sliding track for the limiting block 10, preventing the nut 9 from rotating. This replaces the traditional manual prying assembly, significantly improves assembly efficiency, and greatly reduces the labor intensity of the operator. It effectively avoids permanent plastic deformation or assembly misalignment of the retaining ring due to uneven force, ensures the assembly accuracy and product consistency, ensures that the shaft remains vertical and stable during the assembly process, prevents the shaft from shaking or shifting, further ensures the assembly accuracy, avoids the risk of the retaining ring flying off and injuring people, effectively protects the surface of the shaft and retaining ring, prevents scratches, and improves the safety of operation and the protection of the workpiece.

[0043] Please refer to the details. Figure 3 The assembly mechanism includes:

[0044] The lower end of the lead screw 8 is rotatably connected to the upper end of the assembly frame 7, and the upper end of the lead screw 8 moves through the upper end of the mounting frame 2 and the support plate 3. The circumferential surface of the lead screw 8 is threaded with a nut 9.

[0045] Assembly base 13 is fixedly connected to the lower end of nut 9, and the upper end of assembly base 13 movably passes through the upper end of assembly frame 7. Assembly pad 23 is fixedly connected to the inner surface of assembly base 13.

[0046] A limiting component is provided inside the mounting bracket 2 to limit the sliding nut 9.

[0047] In this embodiment: the rotary motion is converted into the linear motion of the nut 9 by the lead screw 8, providing the propulsion force required for assembly. The nut 9 is threadedly engaged with the lead screw 8, converting the rotary motion of the lead screw 8 into its own linear motion. The assembly seat 13 is fixed to the lower end of the nut 9 and moves linearly together with the nut 9. The assembly pad 23 is fixed to the inner surface of the assembly seat 13 to protect the retaining ring when it is pushed and to evenly transmit pressure. The limiting groove 12 is opened on both sides of the inner wall of the assembly frame 7 to provide a precise sliding track for the limiting block 10 and prevent the nut 9 from rotating.

[0048] Please refer to the details. Figure 3 The limiting components include:

[0049] Two limiting grooves 12 are respectively opened on the inner walls of both sides of the assembly frame 7. The inner surfaces of the two limiting grooves 12 are slidably connected to limiting blocks 10. The adjacent ends of the two limiting blocks 10 are fixedly connected to the two ends of the nut 9.

[0050] In this embodiment, two limiting grooves 12 are provided on the inner walls of both sides of the assembly frame 7 to provide a precise sliding track for the limiting blocks 10. At the same time, one end of the two limiting blocks 10 is fixed to the nut 9, and the other end slides in the limiting groove 12, thereby preventing the nut 9 from rotating.

[0051] Please refer to the details. Figure 2 The upper end of the fixed frame 5 is fixedly connected to two protective seats 11, and the upper end of the lead screw 8 is fixedly connected to a handle 4.

[0052] In this embodiment: the protective seat 11 is fixed to the upper end of the fixed frame 5 to accommodate and protect the internal components of the clamping mechanism. The handle 4 is fixed to the upper end of the lead screw 8 as a force-applying component for manual operation to drive the lead screw 8 to rotate.

[0053] Please refer to the details. Figure 4 It also includes two sets of clamping mechanisms, each set of clamping mechanisms including:

[0054] A sliding shell 15 is fixedly connected to the inner surface of the protective base 11. A pressing shell 19 is slidably connected to the inner surface of the sliding shell 15. A sliding rod 20 is fixedly connected to one end of the pressing shell 19. A clamping base 21 is fixedly connected to one end of the sliding rod 20.

[0055] An elastic component is disposed within the sliding shell 15 to limit the sliding compression shell 19.

[0056] In this embodiment: the sliding shell 15 is fixed to the inner surface of the protective seat 11, serving as the sliding guide and outer shell of the extrusion shell 19. The extrusion shell 19 slides on the inner surface of the sliding shell 15, transmitting the radial force from the clamping seat 21 to the elastic component. The sliding rod 20 connects the extrusion shell 19 and the clamping seat 21, converting the radial movement of the clamping seat 21 into the axial movement of the extrusion shell 19. The clamping seat 21 directly contacts the shaft and is used to clamp the shaft. The support shell 16 is fixed to the inner surface of the sliding shell 15, providing sliding support and guidance for the extrusion rod 17, and serving as the mounting seat for the spring 18. One end of the extrusion rod 17 is fixedly connected to the extrusion shell 19, and the other end slides inside the support shell 16, transmitting force and compressing the spring 18. The spring 18 is sleeved on the outer surface of the support shell 16, providing an elastic force that clamps the clamping seat 21 inward.

[0057] Please refer to the details. Figure 4 The resilient components include:

[0058] A support shell 16 is fixedly connected to the inner surface of the sliding shell 15. A pressing rod 17 is slidably connected to the inner surface of the support shell 16. One end of the pressing rod 17 is fixedly connected to the inner surface of the pressing shell 19. A spring 18 is sleeved on the outer surface of the support shell 16.

[0059] In this embodiment: the support shell 16 is fixed to the inner surface of the sliding shell 15 to provide sliding support and guidance for the extrusion rod 17, and serves as the mounting seat for the spring 18. The extrusion rod 17 is fixed to the extrusion shell 19, and the other end slides inside the support shell 16 to transmit force and compress the spring 18. The spring 18 is sleeved on the outer surface of the support shell 16 to provide elastic force that clamps the clamping seat 21 inward.

[0060] Please refer to the details. Figure 2 Both clamping seats 21 have clamping pads 22 on their inner surfaces.

[0061] In this embodiment, two clamping pads 22 are disposed on the inner surfaces of the two clamping seats 21 to increase friction and prevent damage to the surface of the shaft, thus avoiding damage to the surface of the shaft.

[0062] The working principle and usage process of this utility model are as follows: First, the shaft to be assembled is placed vertically in the circular clamp 6. Then, the wire retaining ring is placed inside the assembly base 13 and supported by the assembly pad 23 on its inner surface. Next, the handle 4 is rotated clockwise to drive the lead screw 8 to rotate. At the same time, the rotational motion of the lead screw 8 is converted into the downward linear motion of the nut 9 along the axial direction of the lead screw 8, thereby driving the assembly base 13 at its lower end to move down together and pushing the wire retaining ring inside into the surface of the conical seat 14. The wire retaining ring is gradually expanded according to the outer conical surface of the conical seat 14, so that its inner diameter gradually increases. The assembly base 13 continues to press down, and the expanded wire retaining ring, guided by the conical seat 14, passes over the maximum diameter of the shaft end. When the retaining ring is pushed to the predetermined assembly slot on the shaft, it relies on its own elastic contraction to quickly lock into the slot, making a crisp "click" sound, and the assembly is completed.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A shaft wire retaining ring assembly mechanism, characterized in that, include: Base (1); Mounting bracket (2), which is fixedly connected to the upper end of the base (1), and a circular clamp (6) is fixedly connected to the upper end of the base (1), and a fixing bracket (5) is provided on the outer surface of the circular clamp (6); An assembly frame (7) is disposed on the inner surface of the mounting frame (2). A support plate (3) is fixedly connected to the upper end of the mounting frame (2), and a conical seat (14) is fixedly connected to the lower end of the assembly frame (7). An assembly mechanism is provided inside the mounting frame (2) to assemble the wire retaining ring.

2. The shaft wire retaining ring assembly mechanism according to claim 1, characterized in that: The assembly mechanism includes: The lower end of the lead screw (8) is rotatably connected to the upper end of the assembly frame (7), and the upper end of the lead screw (8) moves through the upper end of the mounting frame (2) and the support plate (3). The circumferential surface of the lead screw (8) is threaded with a nut (9). Assembly base (13), the assembly base (13) is fixedly connected to the lower end of the nut (9), the upper end of the assembly base (13) movably passes through the upper end of the assembly frame (7), and an assembly pad (23) is fixedly connected to the inner surface of the assembly base (13). A limiting component is provided inside the mounting bracket (2) to limit the sliding nut (9).

3. The shaft wire retaining ring assembly mechanism according to claim 2, characterized in that: The limiting component includes: Two limiting grooves (12) are respectively opened on the inner walls of the two sides of the assembly frame (7). The inner surfaces of the two limiting grooves (12) are slidably connected to limiting blocks (10). The close ends of the two limiting blocks (10) are fixedly connected to the two sides of the nut (9).

4. The shaft wire retaining ring assembly mechanism according to claim 3, characterized in that: The upper end of the fixed frame (5) is fixedly connected to two protective seats (11), and the upper end of the lead screw (8) is fixedly connected to a handle (4).

5. The shaft wire retaining ring assembly mechanism according to claim 4, characterized in that: It also includes two sets of clamping mechanisms, each set of which includes: A sliding shell (15) is fixedly connected to the inner surface of the protective seat (11). A pressing shell (19) is slidably connected to the inner surface of the sliding shell (15). A sliding rod (20) is fixedly connected to one end of the pressing shell (19). A clamping seat (21) is fixedly connected to one end of the sliding rod (20). An elastic component is disposed within the sliding shell (15) to limit the sliding extrusion shell (19).

6. The shaft wire retaining ring assembly mechanism according to claim 5, characterized in that: The elastic component includes: A support shell (16) is fixedly connected to the inner surface of a sliding shell (15). A pressing rod (17) is slidably connected to the inner surface of the support shell (16). One end of the pressing rod (17) is fixedly connected to the inner surface of the pressing shell (19). A spring (18) is sleeved on the outer surface of the support shell (16).

7. The shaft wire retaining ring assembly mechanism according to claim 6, characterized in that: The inner surfaces of both clamping seats (21) are provided with clamping pads (22).