Wear-resistant and corrosion-resistant plum coupling
By introducing a buffer pad and protective cover into the plum blossom coupling, the problems of vibration, collision and corrosion caused by traditional plum blossom couplings are solved, achieving wear-resistant and corrosion-resistant effects, and improving the stability and lifespan of the equipment.
Patent Information
- Application Number
- CN202423284739.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When using traditional plum blossom couplings, the components may wear and corrode due to vibration, collision, and external impurities, affecting the stability and lifespan of the equipment.
The design incorporates a plum blossom pad and a buffer pad. The buffer pad reduces direct friction between components and provides cushioning, while the protective cover prevents dust and rainwater erosion, improving wear resistance and corrosion resistance.
It effectively reduces wear and corrosion of the plum blossom coupling, improves the stability and service life of the equipment, and reduces maintenance costs.
Smart Images

Figure CN223549662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plum blossom couplings, specifically a wear-resistant and corrosion-resistant plum blossom coupling. Background Technology
[0002] The plum blossom coupling plays a vital role in mechanical transmission systems. Through its unique structural design and performance characteristics, it has a significant impact on the operating efficiency, stability, and lifespan of equipment. The plum blossom coupling not only improves the smoothness of the transmission system but also extends the service life of the equipment. Furthermore, its compact design and lightweight materials make installation and maintenance more convenient, reducing maintenance costs and downtime.
[0003] In the existing technology, the traditional plum blossom coupling mainly consists of two half couplings, plum blossom pads and connecting bolts. The two half couplings are fixed on the driving shaft and the driven shaft respectively, with a plum blossom-shaped pad sandwiched in the middle. They are fastened by bolts. The plum blossom pads are usually made of polyurethane or nylon, which can absorb vibration and compensate for axial, radial and angular deviations to ensure smooth transmission.
[0004] However, in the use of traditional plum blossom couplings, some parts of the two sets of half couplings may collide with each other when vibration occurs, and some couplings may be corroded by external dust or rainwater and other impurities. These factors may cause wear and corrosion of the couplings. Therefore, this utility model proposes a wear-resistant and corrosion-resistant plum blossom coupling to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a wear-resistant and corrosion-resistant plum blossom coupling to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a wear-resistant and corrosion-resistant plum blossom coupling, the wear-resistant and corrosion-resistant plum blossom coupling comprising: a plum blossom pad, a front claw plate installed at one end of the plum blossom pad, a rear claw plate installed at the other end of the plum blossom pad, and a buffer pad sandwiched between the plum blossom pad and the front claw plate and the rear claw plate.
[0007] The protective cover is wrapped around the surface of the front and rear jaw discs.
[0008] Preferably, the front claw plate includes a front upper claw plate and a front lower claw plate. The outer wall surface of the front upper claw plate has a hole, and a fixing screw is installed in the hole. Several locking blocks are fixedly installed on the front upper claw plate near the end of the plum blossom pad.
[0009] Preferably, the outer wall surface of the lower front claw disk is provided with a threaded hole, and a fixing screw is screwed into the threaded hole. Several locking blocks are provided at one end of the lower front claw disk near the plum blossom pad. The upper surface of the lower front claw disk is in contact with the lower surface of the upper front claw disk, and the locking blocks at one end of the lower front claw disk are arranged in a circular array.
[0010] Preferably, the rear claw plate includes a rear upper claw plate and a rear lower claw plate, and a number of circumferentially arranged locking blocks are provided on the rear claw plate near the end of the plum blossom pad.
[0011] Preferably, the plum blossom pad includes a collar and a locking petal. Several locking petals are fixedly connected to the outer wall of the collar. The locking petals are arranged in a circular array. A locking block is inserted between each locking petal. The outer wall of the locking block is in contact with the side of the locking petal on both sides.
[0012] Preferably, the protective cover includes an upper cover and a lower cover, the lower surface of the upper cover and the upper surface of the lower cover are attached to each other, and several holes are opened on both sides of the upper cover. The holes are arranged linearly and equidistantly. Several holes are opened on both sides of the lower cover, and fastening screws are installed in the holes. A fastening nut is screwed to one end of the fastening screw.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The wear-resistant and corrosion-resistant plum blossom coupling proposed in this utility model has buffer pads inserted between the plum blossom pad and the front and rear jaw plates during use. The buffer pads can reduce the direct friction between the plum blossom pad and the components, and at the same time play a certain buffering role, avoiding wear caused by direct interaction between the front and rear jaw plates. Meanwhile, the outermost protective cover can protect the coupling from dust, pollutants and rainwater, thus playing a role in corrosion prevention. This avoids the problem of plum blossom couplings being easily worn and corroded. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the coupling of this utility model;
[0017] Figure 3 This is an exploded view of the structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the installation of the plum blossom pad structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the plum blossom pad structure of this utility model.
[0020] In the diagram: 1. Plum blossom pad; 2. Front jaw plate; 3. Rear jaw plate; 4. Buffer pad; 5. Protective cover; 6. Front upper jaw plate; 7. Front lower jaw plate; 8. Fixing screw; 9. Clamping block; 10. Threaded hole; 11. Rear upper jaw plate; 12. Rear lower jaw plate; 13. Collar; 14. Clamping flap; 15. Upper cover; 16. Lower cover; 17. Fastening screw; 18. Fastening nut. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Example 1: Please refer to Figures 1-5 This utility model provides a technical solution: a wear-resistant and corrosion-resistant plum blossom coupling, the wear-resistant and corrosion-resistant plum blossom coupling includes: plum blossom pad 1, a front claw plate 2 is installed at one end of the plum blossom pad 1, a rear claw plate 3 is installed at the other end of the plum blossom pad 1, and a buffer pad 4 is inserted between the plum blossom pad 1 and the front claw plate 2 and the rear claw plate 3.
[0023] Protective cover 5, which covers the surfaces of the front claw plate 2 and the rear claw plate 3;
[0024] During use, buffer pads 4 are inserted between the plum blossom pad 1 and the front jaw plate 2 and the rear jaw plate 3. The buffer pads 4 can reduce the direct friction between the plum blossom pad 1 and the parts, and at the same time play a certain buffering role, avoiding wear caused by direct contact between the front jaw plate 2 and the rear jaw plate 3. Meanwhile, the outermost protective cover 5 can protect the coupling from dust, pollutants and rainwater, thus playing a role in corrosion prevention. This avoids the problem of the plum blossom coupling being easily worn and corroded.
[0025] Example 2: Based on Example 1, a plum blossom pad 1 is provided to improve the wear resistance of the coupling. The plum blossom pad 1 includes a collar 13 and retaining plates 14. Several retaining plates 14 are fixedly connected to the outer wall of the collar 13. The retaining plates 14 are arranged in a circumferential array. A retaining block 9 is inserted between each retaining plate 14. The outer wall of the retaining block 9 is in contact with the sides of the retaining plates 14 on both sides. Several buffer pads 4 are provided at both ends of the plum blossom pad 1. The buffer pads 4 can prevent the front claw plate 2 and the rear claw plate 3 from directly interacting and colliding and causing wear when the coupling vibrates. At the same time, it also reduces the direct contact between the plum blossom pad 1 and the front claw plate 2 and the rear claw plate 3, thereby reducing the wear of the coupling and improving the overall wear resistance.
[0026] The front jaw disk 2 includes an upper front jaw disk 6 and a lower front jaw disk 7. The upper front jaw disk 6 has a hole on its outer wall surface, into which a fixing screw 8 is installed. Several locking blocks 9 are fixedly installed at the end of the upper front jaw disk 6 near the perforated pad 1. The lower front jaw disk 7 has a threaded hole 10 on its outer wall surface, into which a fixing screw 8 is threaded. Several locking blocks 9 are located at the end of the lower front jaw disk 7 near the perforated pad 1. The upper surface of the lower front jaw disk 7 is in contact with the lower surface of the upper front jaw disk 6. The locking blocks 9 at one end of the front jaw disk 2 are arranged in a circular array. The rear jaw disk 3 includes... The rear upper jaw plate 11 and the rear lower jaw plate 12 are provided with several circumferentially arranged locking blocks 9 near the end of the rear jaw plate 3 near the plum blossom pad 1. The front jaw plate 2 is divided into the front upper jaw plate 6 and the front lower jaw plate 7. The front upper jaw plate 6 and the front lower jaw plate 7 are fixed to the shaft by the cooperation of the fixing screw 8 and the threaded hole 10. The rear jaw plate 3 is also installed in the same way. This method not only facilitates disassembly, but also avoids the front jaw plate 2 and the rear jaw plate 3 from shaking during operation, which would cause wear, thereby improving the overall wear resistance.
[0027] Example 3: Based on Example 2, a protective cover 5 is provided to achieve corrosion protection for the coupling. The protective cover 5 includes an upper cover 15 and a lower cover 16. The lower surface of the upper cover 15 is attached to the upper surface of the lower cover 16. Several holes are opened on both sides of the upper cover 15, and the holes are arranged linearly and equidistantly. Several holes are opened on both sides of the lower cover 16, and fastening screws 17 are installed in the holes. A fastening nut 18 is screwed to one end of the fastening screw 17. The protective cover 5 covers the outer wall surfaces of the front jaw plate 2 and the rear jaw plate 3, and is fixed to the outer wall of the front jaw plate 2 and the rear jaw plate 3 by the action of the fastening screws 17 and the fastening nuts 18, thereby effectively resisting the corrosion of the coupling by external dust or rainwater and other impurities.
[0028] In actual use, buffer pads 4 are inserted between the plum blossom pad 1 and the front jaw plate 2 and the rear jaw plate 3. The buffer pads 4 can reduce the direct friction between the plum blossom pad 1 and the parts, and at the same time play a certain buffering role, avoiding wear caused by direct interaction between the front jaw plate 2 and the rear jaw plate 3. Meanwhile, the outermost protective cover 5 can protect the coupling from dust, pollutants and rainwater, thus playing a role in corrosion prevention. This avoids the problem of the plum blossom coupling being easily worn and corroded.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wear-resistant and corrosion-resistant perforated coupling, characterized in that: The wear-resistant and corrosion-resistant plum blossom coupling includes: a plum blossom pad (1), a front jaw plate (2) installed at one end of the plum blossom pad (1), a rear jaw plate (3) installed at the other end of the plum blossom pad (1), and a buffer pad (4) sandwiched between the plum blossom pad (1), the front jaw plate (2), and the rear jaw plate (3). The protective cover (5) is wrapped around the surface of the front claw plate (2) and the rear claw plate (3).
2. The wear-resistant and corrosion-resistant plum blossom coupling according to claim 1, characterized in that: The front claw plate (2) includes a front upper claw plate (6) and a front lower claw plate (7). The outer wall surface of the front upper claw plate (6) has a hole, and a fixing screw (8) is installed in the hole. Several locking blocks (9) are fixedly installed on the front upper claw plate (6) near the plum blossom pad (1).
3. The wear-resistant and corrosion-resistant plum blossom coupling according to claim 2, characterized in that: The outer wall surface of the lower front claw disk (7) is provided with a threaded hole (10), and a fixing screw (8) is screwed into the threaded hole (10). Several locking blocks (9) are provided at one end of the lower front claw disk (7) near the plum blossom pad (1). The upper surface of the lower front claw disk (7) is in contact with the lower surface of the upper front claw disk (6). The locking blocks (9) at one end of the front claw disk (2) are arranged in a circular array.
4. The wear-resistant and corrosion-resistant plum blossom coupling according to claim 1, characterized in that: The rear claw plate (3) includes a rear upper claw plate (11) and a rear lower claw plate (12). The rear claw plate (3) has a number of circumferentially arranged card blocks (9) at one end near the plum blossom pad (1).
5. The wear-resistant and corrosion-resistant plum blossom coupling according to claim 1, characterized in that: The plum blossom pad (1) includes a collar (13) and a locking petal (14). Several locking petals (14) are fixedly connected to the outer wall of the collar (13). The locking petals (14) are arranged in a circular array. A locking block (9) is inserted between each locking petal (14). The outer wall of the locking block (9) is in contact with the sides of the locking petals (14) on both sides.
6. The wear-resistant and corrosion-resistant plum blossom coupling according to claim 1, characterized in that: The protective cover (5) includes an upper cover (15) and a lower cover (16). The lower surface of the upper cover (15) is attached to the upper surface of the lower cover (16). Several holes are opened on both sides of the upper cover (15), and the holes are arranged linearly and equidistantly. Several holes are opened on both sides of the lower cover (16), and fastening screws (17) are installed in the holes. A fastening nut (18) is screwed to one end of the fastening screw (17).