A kind of coupling with buffer pad

Abstract

The utility model relates to the technical field of shaft coupling, concretely to a take buffer pad formula shaft coupling, including first half coupling and second half coupling, is provided with the buffer pad between first half coupling and second half coupling, and the buffer pad is plum blossom shape, and the buffer pad includes buffer petal, and the buffer petal is provided with a plurality of, and the annular plum blossom shape buffer pad is combined to the plurality of buffer petals, and the inside of each buffer petal is provided with the connecting end, and the side of connecting end is provided with the connecting groove, and the other side is provided with the connecting strip, and the adjacent connecting groove is limited and clamped between the connecting strip, and the outside of each buffer petal is provided with the buffer end, and the both sides of buffer end are provided with the buffer piece, and the buffer piece is detachable and clamped in the both sides of buffer end, the utility model discloses through many petal formula design and is convenient for individually replacing the damaged buffer petal, need not integral replacement, reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically to a coupling with a buffer pad. Background Technology

[0002] In the field of mechanical transmission, couplings, as key components connecting two shafts and transmitting motion and torque, directly affect the working efficiency and service life of the entire equipment due to their operational stability and damping performance. Among them, couplings with buffer pads are widely used in various power transmission scenarios because they can absorb vibration and compensate for shaft misalignment through the buffer pads. The plum blossom-shaped buffer pad has become a commonly used buffer component for this type of coupling due to its strong structural adaptability.

[0003] However, traditional plum blossom-shaped buffer pads are mostly integral structures. During long-term operation, the buffer pads are prone to damage due to wear and impact in certain areas (such as the stress-bearing parts that come into contact with the coupling teeth). In this case, the entire buffer pad needs to be replaced, resulting in a large consumption of spare parts and high maintenance costs.

[0004] In addition, a buffer coupling is disclosed in Chinese patent with publication number CN221974128U. It enhances the buffering effect by setting a spring buffer structure at the buffer valve. However, the manufacturing process of this design is complicated, and the spring is prone to reciprocating rebound after being compressed, which interferes with the stable operation of the coupling and cannot be adapted to working conditions with large load fluctuations such as starting and braking. Utility Model Content

[0005] The purpose of this invention is to provide a coupling with a buffer pad to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coupling with a buffer pad, comprising a first half-coupling and a second half-coupling, wherein a buffer pad is provided between the first half-coupling and the second half-coupling, the buffer pad being quincunx-shaped, the buffer pad comprising buffer petals, wherein multiple buffer petals are provided, and the multiple buffer petals are combined to form an annular quincunx-shaped buffer pad, wherein a connecting end is provided on the inner side of each buffer petal, wherein a connecting groove is provided on one side of the connecting end, and a connecting strip is provided on the other side, wherein the connecting strip is limited and engaged with the adjacent connecting groove, and a buffer end is provided on the outer side of each buffer petal, wherein buffer plates are provided on both sides of the buffer end, and the buffer plates are detachably engaged on both sides of the buffer end.

[0007] The present invention is further configured such that the buffer end is provided with a multi-chamber structure, wherein the multi-chamber structure can be a honeycomb structure or other porous chamber structure, and the impact of different amplitudes is absorbed in stages by the deformation of the chambers, thereby improving the adaptability of buffering and vibration reduction, and can simultaneously cope with high-frequency small amplitude and low-frequency large amplitude vibrations.

[0008] The present invention is further configured such that a locking strip is provided on one side of the buffer sheet connected to the buffer end, and a locking groove is provided on both sides of the buffer end. The locking strip and the locking groove are locked together. During installation, the locking strip is squeezed into the locking groove. Through the locking between the locking strip and the locking groove, the buffer sheet can be detachably and stably installed at the buffer end of the buffer petal. In this way, when the buffer sheet is damaged, the buffer sheet can be replaced separately without replacing the entire buffer petal.

[0009] The present invention is further configured such that the outer surface of the buffer sheet is provided with a raised ridge, which can be wavy or sawtooth protrusion. The difference in the amount of deformation of the protrusion is used to achieve stiffness gradation, avoid "rigid impact", and achieve "soft start" buffering in scenarios with large load fluctuations such as starting and braking, thereby reducing impact damage to the shaft system.

[0010] The present invention is further provided that the surface of the buffer sheet and the raised rib is provided with a protective coating, which can be PTFE (polytetrafluoroethylene) or ceramic coating, to improve the wear resistance and corrosion resistance of the buffer sheet surface.

[0011] The present invention is further configured such that a limiting protrusion is provided on the side of the connecting strip, and a limiting groove is provided on the inner wall of the connecting groove. The limiting protrusion and the limiting groove are engaged in a limiting engagement. When two adjacent buffer petals are connected to the connecting groove through the connecting strip, the limiting protrusion is engaged in the corresponding limiting groove. The engagement of the limiting protrusion and the limiting groove can further improve the installation stability of the connecting strip in the connecting groove. In conjunction with the engaging structure of the connecting strip and the connecting groove, a stable connection between two adjacent sets of buffer petals can be achieved.

[0012] The present invention is further configured such that a toothed groove is formed between two adjacent buffer petals, a first tooth is provided on the first half coupling, and a second tooth is provided on the second half coupling. The first tooth and the second tooth are intermittently inserted into the corresponding toothed groove. Through the toothed groove cooperation, the buffer petals are used to separate the first tooth and the second tooth, thereby improving the buffering effect during the operation of the coupling.

[0013] The present invention is further configured such that mounting blocks are provided on two buffer petals spaced apart from each other, and the mounting blocks are located on the front and rear sides of the corresponding buffer petals. The first half-coupling and the second half-coupling are both provided with mounting grooves. The mounting blocks are used to engage with the mounting grooves on the first half-coupling and the second half-coupling to improve the overall installation stability.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Reduced maintenance costs: The plum blossom-shaped buffer pad of this coupling adopts a multi-petal combination design. Adjacent buffer petals are limited and engaged with the connecting groove by connecting strips, and reinforced by limiting protrusions and limiting grooves. When a partial buffer petal is damaged, there is no need to replace the entire buffer pad; the damaged part can be disassembled and replaced separately. At the same time, the buffer plates on both sides of the buffer end are detachably connected to the engaging groove by engaging strips. After wear, only the buffer plates need to be replaced, avoiding the complete scrapping of the buffer petal and greatly reducing spare parts consumption and maintenance expenses.

[0015] 2. Optimized buffering and vibration reduction performance to ensure stable operation: The internal structure of the buffer end adopts a honeycomb-like multi-chamber structure, which can absorb impacts of different amplitudes in stages, and simultaneously cope with high-frequency small-amplitude and low-frequency large-amplitude vibrations. The outer surface of the buffer plate is equipped with wavy or sawtooth-shaped ridges, which achieve stiffness gradation through the difference in the amount of ridge deformation, avoiding "rigid impact" during start-up and braking, and realizing "soft start" buffering. In addition, the first and second teeth intermittently interlock with the grooves formed by the buffer petals. Through the interlocking teeth of the buffer petals, the buffering effect during operation is further enhanced, reducing shaft impact damage and improving the operational stability of the equipment.

[0016] 3. Enhanced installation adaptability and extended component lifespan: The spaced-apart buffer petals are equipped with mounting blocks that engage with the coupling's mounting slots, improving overall installation stability. The buffer pads and raised ribs are coated with PTFE or ceramic protective coatings, significantly enhancing wear resistance and corrosion resistance, adapting to complex working conditions. The multi-petal buffer pads offer flexible assembly, allowing adjustment of the number and combination of buffer petals according to actual needs, adapting to different shaft connection scenarios. Furthermore, the robust connection structure of each component reduces the risk of loosening during operation, effectively extending the overall service life of the coupling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a coupling with a buffer pad according to the present invention;

[0018] Figure 2 This is an exploded view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the buffer pad in this utility model;

[0020] Figures 4-5 This is a schematic diagram of the overall structure of the buffer flap in this utility model;

[0021] Figure 6 This is a cross-sectional view of the installation structure of the buffer sheet at the buffer end in this utility model;

[0022] Figure 7 This is a schematic diagram showing the position and structure of the convex ridge strip on the buffer sheet in this utility model.

[0023] The components represented by each number in the attached diagram are listed below: 1. First half coupling; 2. Second half coupling; 3. Buffer pad; 4. Buffer flap; 5. Connecting end; 6. Connecting groove; 7. Connecting strip; 8. Buffer end; 801. Multi-chamber structure; 9. Buffer plate; 10. Engaging strip; 11. Engaging groove; 12. Raised rib; 13. Protective coating; 14. Limiting protrusion; 15. Limiting groove; 16. Tooth groove; 17. First tooth; 18. Second tooth; 19. Mounting block; 20. Mounting groove. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution: Please refer to Figures 1-7 A type of coupling with a buffer pad includes a first half-coupling 1 and a second half-coupling 2. A buffer pad 3 is provided between the first half-coupling 1 and the second half-coupling 2. The buffer pad 3 is shaped like a plum blossom and includes buffer petals 4. Multiple buffer petals 4 are provided, and multiple buffer petals 4 are combined to form an annular plum blossom-shaped buffer pad 3. A connecting end 5 is provided on the inner side of each buffer petal 4. A connecting groove 6 is provided on one side of the connecting end 5, and a connecting strip 7 is provided on the other side. The connecting strip 7 is limited and engaged with the adjacent connecting groove 6. A buffer end 8 is provided on the outer side of each buffer petal 4. Buffer plates 9 are provided on both sides of the buffer end 8. The buffer plates 9 are detachably engaged on both sides of the buffer end 8.

[0026] Please see Figures 1-7 As one implementation of the buffer end 8: the buffer end 8 is provided with a multi-chamber structure 801, wherein the multi-chamber structure 801 can be a honeycomb structure or other porous chamber structure, which absorbs the impact of different amplitudes through chamber deformation and graded absorption, thereby improving the adaptability of buffering and vibration reduction, and can simultaneously cope with high-frequency small amplitude and low-frequency large amplitude vibrations.

[0027] Please see Figures 1-7As one implementation of the buffer sheet 9: a locking strip 10 is provided on one side of the buffer sheet 9 connected to the buffer end 8, and a locking groove 11 is provided on both sides of the buffer end 8. The locking strip 10 and the locking groove 11 are locked together. During installation, the locking strip 10 is squeezed into the locking groove 11. Through the locking between the locking strip 10 and the locking groove 11, the buffer sheet 9 can be detachably and stably installed on the buffer end 8 of the buffer petal 4. In this way, when the buffer sheet 9 is damaged, the buffer sheet 9 can be replaced separately without replacing the entire buffer petal 4.

[0028] Please see Figures 1-7 As one implementation of the buffer plate 9: the outer surface of the buffer plate 9 is provided with a raised rib 12, which can be wavy or sawtooth protrusions. The stiffness is graded by the difference in the amount of deformation of the protrusions, avoiding "rigid impact". In scenarios with large load fluctuations such as starting and braking, "soft start" buffering is achieved, reducing impact damage to the shaft system.

[0029] The present invention provides a protective coating 13 on the surface of the buffer sheet 9 and the raised rib 12. The protective coating 13 can be made of PTFE (polytetrafluoroethylene) or ceramic coating to improve the wear resistance and corrosion resistance of the surface of the buffer sheet 9.

[0030] Please see Figures 1-7 As one implementation of the connecting strip 7: a limiting protrusion 14 is provided on the side of the connecting strip 7, and a limiting groove 15 is provided on the inner wall of the connecting groove 6. The limiting protrusion 14 and the limiting groove 15 are engaged. When two adjacent buffer petals 4 are connected to the connecting groove 6 through the connecting strip 7, the limiting protrusion 14 is engaged in the corresponding limiting groove 15. The limiting protrusion 14 is located in the corresponding limiting groove 15. The cooperation between the limiting protrusion 14 and the limiting groove 15 can further improve the installation stability of the connecting strip 7 in the connecting groove 6. With the engagement structure of the connecting strip 7 and the connecting groove 6, a stable connection between two adjacent sets of buffer petals 4 can be achieved.

[0031] In this invention, a toothed groove 16 is formed between two adjacent buffer petals 4. The first half-coupling 1 is provided with a first tooth 17, and the second half-coupling 2 is provided with a second tooth 18. The first tooth 17 and the second tooth 18 are intermittently inserted into the corresponding toothed groove 16. Through the cooperation of the toothed groove 16, the buffer petals 4 are used to separate the first tooth 17 and the second tooth 18, thereby improving the buffering effect during the operation of the coupling.

[0032] Please see Figures 1-7As one implementation of the buffer petals 4: two buffer petals 4 spaced apart are provided with mounting blocks 19. The mounting blocks 19 are located on the front and rear sides of the corresponding buffer petals 4. The first half-coupling 1 and the second half-coupling 2 are both provided with mounting grooves 20. The mounting blocks 19 are used to engage with the mounting grooves 20 on the first half-coupling 1 and the second half-coupling 2 to improve the overall installation stability.

[0033] In summary, the working principle and specific workflow of this utility model are as follows:

[0034] This utility model sets the plum blossom-shaped buffer pad 3 in the existing coupling as a combination structure of multiple buffer petals 4. In this way, when local damage occurs, the damaged buffer petal 4 can be disassembled and replaced individually without replacing the whole thing, thus saving maintenance costs.

[0035] Meanwhile, this utility model provides buffer plates 9 on both sides of each buffer petal 4, and the buffer plates 9 are detachably fixed to both sides of the buffer end 8 in the buffer petal 4 through the cooperation of the locking strip 10 and the locking groove 11. In this way, the vulnerable and worn parts of the buffer petal 4 that are in contact with the first tooth 17 in the first half coupling 1 or the second tooth 18 in the second half coupling 2 can be replaced by the buffer plates 9. Thus, after wear, the worn parts can be flexibly replaced, avoiding the replacement of the entire buffer petal 4, and further saving maintenance costs.

[0036] In this invention, when combining multiple buffer petals 4, the connecting strip 7 between adjacent buffer petals 4 is pressed inward from one end of the connecting groove 6 to the other end of the connecting groove 6. During this process, the corresponding limiting protrusion 14 will be compressed, and when the connecting ends 5 of two adjacent buffer petals 4 are fully matched, they are locked in the corresponding limiting groove 15. Thus, the limiting locking relationship between the limiting protrusion 14 and the limiting groove 15 and the limiting locking relationship between the connecting strip 7 and the connecting groove 6 are used to achieve a stable connection between two adjacent sets of connecting ends 5, thereby achieving a stable connection between two adjacent sets of buffer petals 4. The above steps are repeated until multiple buffer petals 4 form an annular plum blossom-shaped buffer pad 3.

[0037] During assembly, the first half-coupling 1 and the second half-coupling 2 are connected to the shafts at both ends respectively, and the buffer pad 3 is positioned between the two shafts to be connected. Then, the first tooth 17 on the first half-coupling 1 and the second tooth 18 on the second half-coupling 2 are respectively inserted into the corresponding tooth groove 16. The buffer petal 4 is used to achieve the spacing between adjacent first teeth 17 and second teeth 18, thereby achieving a buffering effect during operation.

[0038] In this invention, the buffer flap 4 and buffer sheet 9 are made of elastic materials such as nitrile rubber and polyurethane, which have good buffering properties, wear resistance and corrosion resistance.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] 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 coupling with a buffer pad, comprising a first half-coupling (1) and a second half-coupling (2), wherein a buffer pad (3) is disposed between the first half-coupling (1) and the second half-coupling (2), the buffer pad (3) being quincunx-shaped, characterized in that: The buffer pad (3) includes a buffer petal (4), and multiple buffer petals (4) are provided. Multiple buffer petals (4) are combined to form an annular plum blossom-shaped buffer pad (3). Each buffer petal (4) has a connecting end (5) on its inner side. A connecting groove (6) is provided on one side of the connecting end (5), and a connecting strip (7) is provided on the other side. The connecting strip (7) is limited and engaged with the adjacent connecting groove (6). Each buffer petal (4) has a buffer end (8) on its outer side. Buffer plates (9) are provided on both sides of the buffer end (8). The buffer plates (9) are detachably engaged on both sides of the buffer end (8).

2. The coupling with a buffer pad according to claim 1, characterized in that: The buffer end (8) is provided with a multi-chamber structure (801).

3. The coupling with a buffer pad according to claim 1, characterized in that: Each buffer sheet (9) is provided with a locking strip (10) on one side of the buffer end (8), and locking grooves (11) are provided on both sides of the buffer end (8). The locking strip (10) and the locking groove (11) are locked together.

4. A coupling with a buffer pad according to claim 3, characterized in that: The outer surface of the buffer sheet (9) is provided with a raised rib (12).

5. A coupling with a buffer pad according to claim 4, characterized in that: The surfaces of the buffer sheet (9) and the raised rib (12) are provided with a protective coating (13).

6. A coupling with a buffer pad according to claim 1, characterized in that: The side of the connecting strip (7) is provided with a limiting protrusion (14), and the inner wall of the connecting groove (6) is provided with a limiting groove (15), and the limiting protrusion (14) and the limiting groove (15) are engaged in a limiting engagement.

7. A coupling with a buffer pad according to claim 1, characterized in that: A toothed groove (16) is formed between two adjacent buffer petals (4). The first half-coupling (1) is provided with a first tooth (17), and the second half-coupling (2) is provided with a second tooth (18). The first tooth (17) and the second tooth (18) are intermittently inserted into the corresponding toothed groove (16).

8. A coupling with a buffer pad according to claim 7, characterized in that: Mounting blocks (19) are provided on two buffer petals (4) spaced apart from each other, and mounting grooves (20) are provided on the first half coupling (1) and the second half coupling (2).

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