Star-shaped elastic coupling

Abstract

The utility model relates to the technical field of couplings, and discloses a star-shaped elastic coupling which comprises a left coupling piece, a right coupling piece and a star-shaped piece arranged between the left coupling piece and the right coupling piece, clamping holes are formed in the inner side walls of the left coupling piece and the right coupling piece, protrusions are fixed on the front face and the back face of the star-shaped piece, and the protrusions are fixed on the front face and the back face of the star-shaped piece. An upper gasket and a lower gasket are fixed to the front face and the back face of the star-shaped piece correspondingly, each of the upper gasket and the lower gasket comprises a ring body, a supporting arm fixed to the outer side of the ring body and a butt joint hole formed in the supporting arm, the upper gasket is clamped to the front face of the star-shaped piece through the butt joint hole, and the lower gasket is clamped to the back face of the star-shaped piece through the butt joint hole. The combined structure of the upper gasket and the lower gasket is fixedly clamped with the star-shaped piece to replace the star-shaped piece to make contact with the coupling piece made of external metal materials, abrasion between couplings in the using process can be reduced through the elastic gasket structure, and the service life of the couplings is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to a star-shaped flexible coupling. Background Technology

[0002] Couplings are mechanical transmission connectors used to transmit the motion and torque generated by the prime mover to the driven mover. They also have the function of compensating for axial, angular and radial misalignment between the prime mover and the driven mover caused by manufacturing errors, installation errors, load deformation and temperature changes.

[0003] Some existing couplings lack a reasonable internal elastic structure design, making them unable to cope with the effects of manufacturing errors, installation deviations, and impact loads during operation. When the equipment is running, these factors can cause relative displacement and angular deviations between the two shafts, resulting in transmission position misalignment. Once transmission position misalignment occurs, it not only reduces transmission efficiency and accelerates wear on the shafts and couplings, shortening equipment lifespan, but can also cause strong vibrations and noise, and in severe cases, even equipment failure, affecting the normal operation of the entire production system. Furthermore, due to the lack of buffering and compensation from the elastic structure, the instantaneous impact forces generated during equipment startup, braking, and speed changes cannot be effectively mitigated, further exacerbating the degree of transmission position misalignment.

[0004] Therefore, we propose a star-shaped flexible coupling. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a star-shaped flexible coupling to solve the issues raised in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a star-shaped flexible coupling, comprising a left coupling, a right coupling, and a star-shaped component disposed between the two. The inner walls of both the left and right couplings are provided with locking holes. Protrusions are fixed on both the front and back surfaces of the star-shaped component. An upper gasket and a lower gasket are fixed on the front and back surfaces of the star-shaped component, respectively. Each upper and lower gasket includes a ring body, a support arm fixed to the outside of the ring body, and a mating hole on the support arm. The upper gasket is locked onto the front surface of the star-shaped component through the mating hole, and the lower gasket is locked onto the back surface of the star-shaped component through the mating hole.

[0007] Preferably, the protrusions are distributed equidistantly in a ring on both the front and back of the star-shaped component, and the star-shaped component has a hexagonal structure, with the protrusions distributed in a staggered manner on the star-shaped component.

[0008] Preferably, both the upper and lower gaskets have a convex ring structure fixed on their inner sides, and the star-shaped component has an inner groove in the center of both its front and back sides, with the convex ring disposed in the inner groove.

[0009] Preferably, the height of the protrusion is the same as the sum of the height of the upper pad and the depth of the locking hole.

[0010] Preferably, the left and right couplings are connected and fixed by bolts passing through pre-drilled threaded holes.

[0011] Preferably, both the upper and lower gaskets are corrosion-resistant rubber pads.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this device, the combined structure of the upper and lower gaskets, by being fixedly engaged with the star-shaped component, replaces the star-shaped component in contact with the external metal coupling component. The elastic gasket structure can reduce wear between the couplings during use and extend the service life of the coupling.

[0013] In this device, through the structure of protrusions, locking holes, and mating holes, the user can fix the upper and lower gaskets to the protrusions of the star-shaped component through the mating holes, and then connect and fix the protrusions to the locking holes on the coupling to achieve the combined function and prevent the gasket structure from falling off or shifting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model;

[0016] Figure 3 This is a schematic diagram of the star-shaped component and gasket in the structure of this utility model.

[0017] Explanation of key symbols:

[0018] 1. Left coupling; 11. Locking hole; 2. Star-shaped part; 21. Protrusion; 22. Inner groove; 3. Right coupling; 4. Upper gasket; 41. Ring body; 42. Support arm; 43. Connecting hole; 5. Lower gasket. Detailed Implementation

[0019] Please see Figures 1 to 3 In the embodiments of this utility model;

[0020] Example 1: A star-shaped flexible coupling includes a left coupling 1, a right coupling 3, and a star-shaped component 2 disposed between them. Both the left coupling 1 and the right coupling 3 have locking holes 11 on their inner sidewalls. The star-shaped component 2 has protrusions 21 fixed on both its front and back surfaces. An upper gasket 4 and a lower gasket 5 are fixed on the front and back surfaces of the star-shaped component 2, respectively. Both the upper gasket 4 and the lower gasket 5 include a ring 41 fixed within the ring. The outer support arm 42 and the mating hole 43 on the support arm 42 are provided. The upper gasket 4 is secured to the front of the star-shaped component 2 through the mating hole 43, and the lower gasket 5 is secured to the back of the star-shaped component 2 through the mating hole 43. In this device, the combined structure of the upper gasket 4 and the lower gasket 5, by being fixedly engaged with the star-shaped component 2, replaces the star-shaped component 2 in contact with the external metal coupling. The elastic gasket structure can reduce wear between the couplings during use and extend the service life of the coupling.

[0021] Example 2: Refer to the attached instruction manual Figure 2-3 It can be seen that the difference between Embodiment 2 and Embodiment 1 is that the protrusions 21 are distributed in a ring at equal intervals on both the front and back sides of the star-shaped component 2, and the star-shaped component 2 has a hexagonal structure, with the protrusions 21 distributed in a staggered manner on the star-shaped component 2.

[0022] The inner sides of both the upper gasket 4 and the lower gasket 5 are fixed with convex ring structures, and the star-shaped component 2 has an inner groove 22 opened inward in the middle of both the front and back sides, with the convex ring set in the inner groove 22; the height of the protrusion 21 is the same as the sum of the height of the upper gasket 4 and the depth of the locking hole 11; the left coupling 1 and the right coupling 3 are connected and fixed by bolts passing through pre-drilled threaded holes; both the upper gasket 4 and the lower gasket 5 are corrosion-resistant rubber gasket structures; through the provided protrusion 21, locking hole 11 and mating hole 43 structures, the user can fix the upper gasket 4 and the lower gasket 5 to the protrusion 21 structure of the star-shaped component 2 through the mating hole 43, and then connect and fix the protrusion 21 structure to the locking hole 11 on the coupling to achieve the combined function and prevent the gasket structure from falling off and shifting.

[0023] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A star-shaped flexible coupling, characterized in that, The device includes a left coupling (1), a right coupling (3), and a star-shaped component (2) disposed between the two. The inner walls of the left coupling (1) and the right coupling (3) are provided with locking holes (11). The star-shaped component (2) has protrusions (21) fixed on both the front and back surfaces. The star-shaped component (2) has an upper gasket (4) and a lower gasket (5) fixed on the front and back surfaces respectively. The upper gasket (4) and the lower gasket (5) each include a ring (41), a support arm (42) fixed on the outside of the ring (41), and a docking hole (43) opened on the support arm (42). The upper gasket (4) is locked on the front surface of the star-shaped component (2) through the docking hole (43), and the lower gasket (5) is locked on the back surface of the star-shaped component (2) through the docking hole (43).

2. The star-shaped flexible coupling as described in claim 1, characterized in that: The protrusions (21) are distributed equidistantly in a ring on both the front and back sides of the star-shaped part (2), and the star-shaped part (2) has a hexagonal structure. The protrusions (21) are distributed in a staggered manner on the star-shaped part (2).

3. A star-shaped flexible coupling as described in claim 1, characterized in that: The inner sides of the upper gasket (4) and the lower gasket (5) are both fixed with convex ring structures, and the star-shaped part (2) has an inner groove (22) in the middle of both the front and back sides, and the convex ring is set in the inner groove (22).

4. A star-shaped flexible coupling as described in claim 3, characterized in that: The height of the protrusion (21) is the same as the sum of the height of the upper pad (4) and the depth of the locking hole (11).

5. A star-shaped flexible coupling as described in claim 1, characterized in that: The left coupling (1) and the right coupling (3) are connected and fixed by bolts passing through pre-drilled threaded holes.

6. A star-shaped flexible coupling as described in claim 5, characterized in that: Both the upper gasket (4) and the lower gasket (5) are corrosion-resistant rubber pads.

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