Coupler with nylon rod pin

Abstract

The utility model belongs to the field of couplings, and particularly relates to a coupler with nylon rod pins, which comprises a coupler I, a coupler II is arranged on one side wall of the coupler, check rings are arranged on the side walls of the coupler I and the coupler II, bolt holes are formed in the coupler I and the coupler II, and the nylon rod pins are arranged in the bolt holes. A nylon pin is arranged in the first coupler, a fixing assembly is arranged in the check ring, and buffering assemblies are arranged in the first coupler and the second coupler. The fixing assembly comprises an inserting sleeve, and the side wall of the inserting sleeve is connected into the check ring in a sliding mode. According to the utility model, the pressing ring is pressed to drive the connecting rod to compress the spring to move towards the inside of the plug bush, and the plug bush is inserted into the coupling and then the pressing ring is loosened, so that the extrusion block pushes the ball to move outwards, and the ball abuts against the inner wall of the coupling, thereby firmly fixing the retainer ring on the coupling and achieving the effect of rapid installation; through the structure, the disassembly and assembly efficiency of the check ring is improved.

Description

Technical Field

[0001] This utility model belongs to the field of couplings, and particularly relates to couplings with nylon rod pins. Background Technology

[0002] In the field of modern mechanical transmission, nylon rod and pin couplings are widely used in the power transmission systems of equipment such as fans, pumps, and compressors due to their excellent damping and vibration absorption performance, simple assembly process, and economical manufacturing cost. These couplings achieve a flexible connection between two couplings through nylon pins, which can transmit torque while effectively mitigating vibration and impact during equipment operation, protecting transmission components, and improving equipment operational stability.

[0003] Traditional nylon rod-pin couplings typically connect two couplings by directly inserting nylon pins into pin holes, relying on external retaining rings to restrict axial displacement and prevent them from falling out. The retaining rings are usually secured using bolts or interference fits. When using bolts, multiple bolts are tightened sequentially with the aid of a wrench, using bolt tension to press the retaining ring against the coupling end face. Interference fits, on the other hand, utilize the dimensional difference between the retaining ring and the coupling mounting groove, forcibly pressing the retaining ring into the groove through external force, achieving fixation through friction.

[0004] Traditional nylon rod pin couplings require multiple tightening operations for bolt fastening or pressure equipment for installation during interference fits. Furthermore, equipment maintenance or replacement of the nylon pins necessitates significant time spent disassembling and reinstalling the retaining rings, severely impacting equipment repair efficiency. Therefore, couplings with nylon rod pins are proposed to address these issues. Utility Model Content

[0005] The purpose of this invention is to provide a coupling with nylon rod pins, which aims to solve the problem that existing couplings require a lot of time to disassemble and reinstall the retaining rings when maintaining equipment or replacing nylon pins, which seriously affects the efficiency of equipment maintenance.

[0006] The technical solution of this utility model is implemented as follows: a coupling with a nylon rod pin, including a coupling one, a coupling two provided on one side wall of the coupling, a retaining ring provided on the side wall of both coupling one and coupling two, a pin hole opened inside coupling one and coupling two, a nylon pin provided inside coupling one, a fixing component provided inside the retaining ring, and a buffer component provided inside coupling one and coupling two;

[0007] The fixing component includes a sleeve, the side wall of which is slidably connected to the inside of the retaining ring. A fixing sleeve is fixedly connected inside the sleeve, and a connecting rod is slidably connected inside the fixing sleeve. A pressing ring is fixedly connected to one end of the connecting rod, and a spring is sleeved on the side wall of the connecting rod. One end of the spring is fixedly connected to the side wall of the fixing sleeve, and the other end of the spring is fixedly connected to the side wall of the pressing ring. A pressing block is fixedly connected to the other end of the connecting rod, and a ball bearing is provided inside the sleeve.

[0008] Optionally, the buffer assembly includes a clamping plate, the sidewalls of which are slidably connected inside the first coupling and the second coupling, and the clamping plate is located inside the pin hole.

[0009] Optionally, the sidewall of the extrusion block is fitted with the sidewall of the ball bearing, the sidewall of the insert sleeve is slidably connected inside the first coupling and the second coupling, and the sidewall of the ball bearing is slidably connected inside the first coupling and the second coupling.

[0010] Optionally, the nylon pin sidewall is slidably connected inside the second coupling, and the nylon pin sidewall is slidably connected inside the pin hole.

[0011] Optionally, both coupling one and coupling two are internally fixedly connected to a fixed seat, and a spring two is fixedly connected to the side wall of the fixed seat. One end of the spring two is fixedly connected to the side wall of the clamping plate, and the side wall of the clamping plate is attached to the side wall of the nylon pin.

[0012] Optionally, the nylon pin has a metal frame inside, which is made of spring steel and is used to rigidly support the main body.

[0013] Optionally, a buffer layer is provided between the nylon pin and the metal frame. The buffer layer is made of polyurethane foam to absorb impact energy and reduce vibration noise.

[0014] This utility model discloses a coupling with nylon rod pins. By pressing the pressing ring, the connecting rod compresses the spring and moves into the insert sleeve. By inserting the insert sleeve into the coupling and then releasing the pressing ring, the pressing block pushes the ball outward. The ball presses against the inner wall of the coupling, thus firmly fixing the retaining ring to coupling one and coupling two, restricting the axial movement of the nylon pin, achieving a quick installation effect. This solves the problem that some nylon rod pin couplings require multiple tightening operations for bolt fastening of the retaining ring, and that a lot of time is spent disassembling and reinstalling the retaining ring during equipment maintenance or replacement of nylon pins, affecting equipment maintenance efficiency. The above structure improves the efficiency of retaining ring disassembly and assembly.

[0015] In this invention, when the coupling is subjected to impact or vibration, the nylon pin is pressed against the clamping plate, and the clamping plate compresses the spring on the fixed seat. The spring absorbs and buffers part of the impact force, reduces the rigid collision between coupling one and coupling two, and reduces vibration transmission. When the spring returns to its original position, it pushes the clamping plate to re-fit the nylon pin, maintaining the continuity of the buffering effect.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the coupling with nylon rod pins proposed in this utility model;

[0018] Figure 2 This is an exploded view of the coupling with nylon rod pins proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the sleeve of the coupling with nylon rod pin proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the coupling with nylon rod pins proposed in this utility model;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 This is a schematic diagram of the internal structure of the nylon pin in the coupling with nylon rod pin proposed in this utility model.

[0023] The names and numbers of the components in the diagram are as follows:

[0024] 1. Coupling 1; 2. Coupling 2; 3. Retaining ring; 4. Nylon pin; 5. Insert sleeve; 6. Fixing sleeve; 7. Connecting rod; 8. Pressing ring; 9. Spring 1; 10. Extrusion block; 11. Ball bearing; 12. Pin hole; 13. Fixing seat; 14. Spring 2; 15. Clamping plate; 16. Metal frame; 17. Buffer layer. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Please refer to the appendix. Figure 1-3As shown, one embodiment of this utility model provides a coupling with nylon rod pins, including coupling 1, coupling 2 on the side wall of coupling 1, coupling 2 for connecting a power output shaft, cooperating with coupling 1 to realize the power transmission process from input to output, ensuring the continuity of power transmission, both coupling 1 and coupling 2 are provided with retaining rings 3 on the side walls, retaining rings 3 for limiting the axial displacement of coupling 1 and coupling 2, playing a positioning and protection role, both coupling 1 and coupling 2 have pin holes 12 inside, and nylon pins 4 are provided inside coupling 1, which are used to transmit torque between coupling 1 and coupling 2, and at the same time use the elastic properties of nylon to absorb vibration and compensate for the relative displacement between the two shafts, retaining rings 3 are provided with fixing components inside, and coupling 1 and coupling 2 are provided with buffer components inside;

[0027] The fixing assembly includes a sleeve 5, whose sidewall is slidably connected to the inside of a retaining ring 3. A fixing sleeve 6 is fixedly connected inside the sleeve 5, and a connecting rod 7 is slidably connected inside the fixing sleeve 6. A pressing ring 8 is fixedly connected to one end of the connecting rod 7, and a spring 9 is sleeved on the sidewall of the connecting rod 7. One end of the spring 9 is fixedly connected to the sidewall of the fixing sleeve 6, and the other end of the spring 9 is fixedly connected to the sidewall of the pressing ring 8. A pressing block 10 is fixedly connected to the other end of the connecting rod 7. The pressing ring 8 is used to receive externally applied pressure and transmit the force to the pressing block 10 through the connecting rod 7. The insert 5 is equipped with a ball bearing 11, which is a circular rolling element. The side wall of the pressing block 10 fits against the side wall of the ball bearing 11. The pressing block 10 is used to press the ball bearing 11 so that it is in close contact with the coupling 1 and the coupling 2, thereby fixing the retaining ring 3. The side wall of the insert 5 is slidably connected to the inside of the coupling 1 and the coupling 2. The side wall of the ball bearing 11 is slidably connected to the inside of the coupling 1 and the coupling 2. The side wall of the nylon pin 4 is slidably connected to the inside of the coupling 2. The side wall of the nylon pin 4 is slidably connected to the inside of the pin hole 12.

[0028] Reference Figures 4-6The buffer assembly includes a clamping plate 15, whose sidewalls are slidably connected inside coupling 1 and coupling 2, respectively. The clamping plate 15 slides within coupling 1 and coupling 2, and by engaging with the sidewall of the nylon pin 4, it restricts the radial displacement of the nylon pin 4, effectively preventing the nylon pin 4 from shifting during torque transmission, thus ensuring the stability of power transmission. The clamping plate 15 is located inside the pin hole 12. Both coupling 1 and coupling 2 are fixedly connected to a fixing seat 13, and a spring 14 is fixedly connected to the sidewall of the fixing seat 13. One end of the spring 14 is fixedly connected to the sidewall of the clamping plate 15. The spring 14 functions to withstand vibration or impact on the coupling. At the same time, through its own compression and expansion, it absorbs and buffers energy, reduces the transmission of vibration to other parts of the equipment, and reduces the wear caused by vibration. The side wall of the clamping plate 15 is attached to the side wall of the nylon pin 4. The nylon pin 4 is equipped with a metal skeleton 16, which is made of spring steel and is used to rigidly support the main body, improve the overall strength and load-bearing capacity of the nylon pin 4, and make it less prone to deformation or damage when transmitting large torque. A buffer layer 17 is set between the nylon pin 4 and the metal skeleton 16. The buffer layer 17 is made of polyurethane foam and is used to absorb impact energy. Through its own compression deformation, it converts mechanical energy into internal energy and reduces the noise generated by vibration.

[0029] Working principle: When the equipment is working, coupling 1 and coupling 2 are connected to the power input and output ends respectively. Nylon pin 4 is inserted into the pin hole 12 inside coupling 1 and coupling 2 to realize the flexible connection between the two. During operation, the power is transmitted to the nylon pin 4 through coupling 1, and then to coupling 2 through the nylon pin 4, thus completing the power transmission. During equipment installation, the retaining ring 3 is secured inside coupling 1 and coupling 2. Then, the pressing ring 8 is pressed, causing the connecting rod 7 to compress the spring 9 and move into the insert sleeve 5. Next, the insert sleeve 5 is inserted into coupling 1 and coupling 2 through the retaining ring 3. Then, the pressing ring 8 is released, and the spring 9's elasticity causes the pressing block 10 to push the ball 11 outwards. The ball 11 presses against the inner wall of coupling 1 and coupling 2, thus firmly fixing the retaining ring 3 to coupling 1 and coupling 2, restricting the axial movement of the nylon pin 4 and preventing it from falling off. Releasing the pressing ring 8 compresses the spring 9, reducing the pressure on the pressing block 10 and the ball 11, facilitating the disassembly of the retaining ring 3 and the nylon pin 4. When the coupling is subjected to impact... When vibrating, the nylon pin 4 is pressed against the clamping plate 15, and the clamping plate 15 compresses the spring 14 on the fixed seat 13. The spring 14 absorbs and buffers part of the impact force, reduces the rigid collision between coupling 1 and coupling 2, and reduces vibration transmission. When the spring 14 returns to its original position, it pushes the clamping plate 15 to re-fit the nylon pin 4, maintaining the continuous buffering effect. The metal skeleton 16 inside the nylon pin 4 is made of spring steel, which provides rigid support, bears the main mechanical load, and prevents the nylon pin 4 from deforming or breaking due to excessive force. The buffer layer 17 between the nylon pin 4 and the metal skeleton 16 is made of polyurethane foam, which absorbs impact energy during the operation of the coupling, further reducing vibration and noise, and protecting the coupling and connected equipment.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 coupling having a nylon rod pin, comprising a coupling one (1), characterized in that: The first coupling (1) is provided with a second coupling (2) on its side wall. Both the first coupling (1) and the second coupling (2) are provided with a retaining ring (3). The first coupling (1) and the second coupling (2) are provided with a pin hole (12). The first coupling (1) is provided with a nylon pin (4). The retaining ring (3) is provided with a fixing component. The first coupling (1) and the second coupling (2) are provided with a buffer component. The fixing component includes a sleeve (5), the side wall of which is slidably connected to the inside of the retaining ring (3), a fixing sleeve (6) is fixedly connected inside the sleeve (5), a connecting rod (7) is slidably connected inside the fixing sleeve (6), a pressing ring (8) is fixedly connected to one end of the connecting rod (7), a spring (9) is sleeved on the side wall of the connecting rod (7), one end of the spring (9) is fixedly connected to the side wall of the fixing sleeve (6), and the other end of the spring (9) is fixedly connected to the side wall of the pressing ring (8). A pressing block (10) is fixedly connected to the other end of the connecting rod (7), and a ball bearing (11) is provided inside the sleeve (5).

2. The coupling with nylon rod pins according to claim 1, characterized in that: The buffer assembly includes a clamping plate (15), the sidewalls of which are slidably connected inside the first coupling (1) and the second coupling (2), and the clamping plate (15) is located inside the pin hole (12).

3. The coupling with nylon rod pins according to claim 1, characterized in that: The sidewall of the extrusion block (10) is in contact with the sidewall of the ball (11), the sidewall of the insert (5) is slidably connected inside the first coupling (1) and the second coupling (2), and the sidewall of the ball (11) is slidably connected inside the first coupling (1) and the second coupling (2).

4. The coupling with nylon rod pins according to claim 1, characterized in that: The nylon pin (4) is slidably connected to the inside of the coupling (2) and the side wall of the nylon pin (4) is slidably connected to the inside of the pin hole (12).

5. The coupling with nylon rod pins according to claim 2, characterized in that: Both coupling one (1) and coupling two (2) are fixedly connected to a fixed seat (13). A spring two (14) is fixedly connected to the side wall of the fixed seat (13). One end of the spring two (14) is fixedly connected to the side wall of the clamp plate (15). The side wall of the clamp plate (15) is attached to the side wall of the nylon pin (4).

6. The coupling with nylon rod pins according to claim 1, characterized in that: The nylon pin (4) has a metal frame (16) inside, which is made of spring steel and is used to rigidly support the main body.

7. The coupling with nylon rod pins according to claim 6, characterized in that: A buffer layer (17) is provided between the nylon pin (4) and the metal frame (16). The buffer layer (17) is made of polyurethane foam and is used to absorb impact energy and reduce vibration noise.

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