Multi-spring buffer device of elastic sleeve pin coupling

By introducing multiple rubber rings and spring structures into the elastic sleeve pin coupling, the problems of insufficient vibration buffering capacity and insufficient axial angle deviation compensation in the existing technology are solved, achieving better vibration absorption and equipment protection effects.

CN224064728UActive Publication Date: 2026-03-31CANGZHOU ANHENG COUPLING MANUFACTURING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2026-03-31

Smart Images

  • Figure CN224064728U_ABST
    Figure CN224064728U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of mechanical transmission, in particular to a multi-spring buffer device of an elastic sleeve pin coupling, which comprises a coupling A; a second rubber ring and a first fixing ring are further included, a coupler B is arranged on the left side of the coupler A, a plurality of elastic sleeve pins are arranged between the coupler A and the coupler B for fastening and forming a complete coupler structure, and the second rubber ring used for buffering is placed at the left end of the coupler A. The second rubber ring is arranged on the left end face of the coupler A, the left end and the right end of the first rubber ring are connected with the coupler B and the coupler A respectively, the elastic characteristic of rubber is utilized, vibration and impact between two shafts are effectively absorbed and buffered, vibration transmission is reduced, and mechanical equipment is protected against damage. The rubber ring and the rubber insertion column can generate elastic deformation when being stressed, so that the axial and angular deviation between two shafts is compensated, and the adaptability and the reliability of the coupling are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of mechanical transmission, specifically relating to a multi-spring buffer device for elastic sleeve pin couplings. Background Technology

[0002] The flexible sleeve pin coupling is a mechanical connection device that connects two half-couplings by means of a pin with a flexible sleeve (such as rubber) at one end. It transmits torque by means of the frictional torque generated by the locking force of the pin assembly and the compression deformation of the flexible sleeve. It has the characteristics of simple structure, convenient installation, good buffering and vibration reduction effect and certain shaft misalignment compensation capability, and is suitable for small and medium power shaft transmission.

[0003] Existing couplings, after installation, lack sufficient compensation for axial and angular deviations between the two shafts. They are unable to adapt to minor displacements caused by machining errors, assembly deviations, or during operation, making them susceptible to stress concentration, reducing their service life. Furthermore, the lack of effective elastic buffer design means that vibrations and impacts between the two shafts cannot be fully absorbed and buffered, which can easily lead to vibration transmission and damage to mechanical equipment.

[0004] Therefore, existing flexible sleeve pin couplings have problems with insufficient vibration damping capacity and limited axial and angular deviation compensation capabilities. Utility Model Content

[0005] To overcome the problems of insufficient vibration buffering capacity and limited axial and angular deviation compensation capacity of existing flexible sleeve pin couplings, a multi-spring buffer device for flexible sleeve pin couplings is proposed.

[0006] The technical solution of this utility model is as follows: a multi-spring buffer device for an elastic sleeve pin coupling, including a No. A coupling; it also includes a second rubber ring and a first fixing ring. A No. B coupling is arranged to the left of the No. A coupling and the No. B coupling are fastened by multiple elastic sleeve pins to form a complete coupling structure. A second rubber ring for buffering is placed at the left end of the No. A rubber pad is evenly distributed on the inner wall of the second rubber ring. A clamping plate corresponding to the number of rubber pads is placed at the left end of the second rubber ring. A rubber strip corresponding to the number of rubber pads is fixed at the left end of the second rubber ring. A first slot is opened through both the left and right ends of the No. B coupling. The left end of the rubber strip passes through the first slot and then opens through a sixth slot.

[0007] Preferably, the left end of coupling A has multiple threaded grooves, and the left end of coupling A has multiple third studs. The ends of multiple clamping plates that are close to each other are fixed with a first fixing ring, and the third studs are threaded onto the threaded grooves through the first fixing ring.

[0008] Preferably, coupling A has multiple second slots through its left and right ends, and second shaft insertion slots through its left and right ends. Coupling B has multiple third slots through its left and right ends, and a first insertion tube is fixed to the left end of coupling B. The first shaft insertion slots through its left and right ends are formed by coupling B and the first insertion tube.

[0009] Preferably, the right end of coupling B has a fourth slot that is evenly distributed in a circle, and the left end of coupling A has a first groove that is evenly distributed in a circle. A second rubber pin is inserted into the fourth slot, and a first rubber pin is inserted into the first groove. A first rubber ring is fixed to one end of the multiple first rubber pins and multiple second rubber pins that are close to each other.

[0010] Preferably, a nut is movably mounted on the second slot, the radius of which is larger than that of the second slot. A second stud is fixed to the left end of the second slot. A third slot is provided on the right end of the B coupling. A spring is provided at the end of the third slot and the nut that are close to each other.

[0011] As a preferred embodiment, the B coupling has evenly distributed fifth slots at both ends, the third slot and the fifth slot are interconnected, the second stud passes through the fifth slot and the sixth slot and the outer wall is fitted with an anti-slip ring, and the leftmost end of the second stud is threaded with a nut.

[0012] Preferably, the right end of the clamping plate is L-shaped, and the right end of the clamping plate fits into the arc-shaped outer wall of coupling A.

[0013] The beneficial effects of this utility model are as follows: By placing a second rubber ring on the left end face of coupling A, and connecting the left and right ends of the first rubber ring to couplings B and A respectively, the elastic properties of rubber are utilized to effectively absorb and buffer the vibration and impact between the two shafts, reduce vibration transmission, and protect mechanical equipment from damage. The rubber ring and rubber pin can undergo elastic deformation when subjected to force, thereby compensating for axial and angular deviations between the two shafts and improving the adaptability and reliability of the coupling. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of the multi-spring buffer device of the elastic sleeve pin coupling of this utility model.

[0015] Figure 2 The diagram shown is a three-dimensional disassembled structural schematic of the multi-spring buffer device of the elastic sleeve pin coupling of this utility model.

[0016] Figure 3 The diagram shown is a three-dimensional disassembled structural schematic of the multi-spring buffer device of the elastic sleeve pin coupling of this utility model.

[0017] Figure 4 The diagram shows a three-dimensional structural schematic of the elastic sleeve pin of the multi-spring buffer device of the elastic sleeve pin coupling of this utility model.

[0018] Figure 5 The diagram shown is a disassembled structural diagram of coupling A of the multi-spring buffer device of the elastic sleeve pin coupling of this utility model.

[0019] The markings in the attached diagram are as follows: 1. Coupling A; 2. Coupling B; 3. First insertion tube; 4. First shaft insertion groove; 5. First slot; 6. First column groove; 601. First rubber ring; 602. First rubber insert; 603. Second rubber insert; 604. Fourth slot; 7. Second slot; 701. Nut; 702. Second stud; 703. Third slot; 704. Fifth slot; 705. Spring; 706. Nut; 707. Anti-slip ring; 8. Threaded groove; 801. First retaining ring; 802. Third stud; 803. Clamping plate; 9. Second rubber ring; 10. Rubber pad; 11. Rubber strip; 12. Sixth slot; 13. Second shaft insertion groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-5 This utility model provides an embodiment of a multi-spring buffer device for an elastic sleeve pin coupling, including a No. A coupling 1; it also includes a second rubber ring 9 and a first fixing ring 801. A No. B coupling 2 is arranged to the left of the No. A coupling 1 and the No. B coupling 2 are fastened together by multiple elastic sleeve pins to form a complete coupling structure. The left end of the No. A coupling 1 has a second rubber ring 9 for buffering, and the inner wall of the second rubber ring 9 is fixed with evenly distributed rubber pads 10. The left end of the second rubber ring 9 has a clamping plate 803 corresponding to the number of rubber pads 10. The left end of the second rubber ring 9 is fixed with the rubber pads. The number of rubber strips 10 corresponds one-to-one with the number of rubber strips 11. The left and right ends of coupling B 2 are provided with first slots 5. The left end of rubber strip 11 passes through the first slot 5 and is provided with a sixth slot 12. By placing a second rubber ring 9 on the left end face of coupling A 1, and the left and right ends of the first rubber ring 601 are respectively connected to coupling B 2 and coupling A 1, the elastic properties of rubber are used to effectively absorb and buffer the vibration and impact between the two shafts, reduce vibration transmission, and protect the mechanical equipment from damage. The rubber ring and rubber pin can undergo elastic deformation when subjected to force, thereby compensating for the axial and angular deviations between the two shafts and improving the adaptability and reliability of the coupling.

[0022] Please see Figures 1-3In this embodiment, the right end of coupling B 2 has a fourth slot 604 with evenly distributed circular grooves, and the left end of coupling A 1 has a first groove 6 with evenly distributed circular grooves. A second rubber post 603 is inserted into the fourth slot 604, and a first rubber post 602 is inserted into the first groove 6. A first rubber ring 601 is fixed to one end of each of the first rubber posts 602 and the second rubber posts 603 that are close to each other. A nut 701 is movably disposed on the second slot 7, and the radius of the nut 701 is larger than that of the second slot. 7. A second stud 702 is fixed to the left end of the second slot 7. A third slot 703 is provided at the right end of the B coupling 2. A spring 705 is provided at the end of the third slot 703 and the nut 701 that are close to each other. A fifth slot 704 is provided at both ends of the B coupling 2. The third slot 703 and the fifth slot 704 are interconnected. After the second stud 702 passes through the fifth slot 704 and the sixth slot 12, an anti-slip ring 707 is fitted on its outer wall. A nut 706 is threaded on the leftmost end of the second stud 702.

[0023] Please see Figures 3-5 In this embodiment, the left end of coupling A 1 has multiple threaded grooves 8, and the left end of coupling A 1 has multiple third studs 802. Multiple clamping plates 803 are fixed to a first retaining ring 801 at their adjacent ends. The third studs 802 pass through the first retaining ring 801 and are threaded onto the threaded grooves 8. By sequentially threading the multiple third studs 802 through the first retaining ring 801 into the threaded grooves 8, the clamping plates 803 can clamp the rubber pad 10. Coupling A 1... Multiple second slots 7 are provided through both the left and right ends. Second shaft insertion slots 13 are provided through both the left and right ends of coupling A. Multiple third slots 703 are provided through both the left and right ends of coupling B. A first insertion tube 3 is fixed to the left end of coupling B. First shaft insertion slots 4 are provided through both the left and right ends of the integral structure formed by coupling B and the first insertion tube 3. The right end of clamping plate 803 is L-shaped and fits against the arc-shaped outer wall of coupling A.

[0024] When installing coupling A 1 and coupling B 2, place the second rubber ring 9 on the left end face of coupling A 1, then place the first fixing ring 801 on the left end of the second rubber ring 9. Multiple third studs 802 are threaded into the threaded grooves 8 through the first fixing ring 801, clamping the second rubber ring 9 at the left end of coupling A 1 using the first fixing ring 801. The left and right ends of the first rubber ring 601 are respectively fitted with the adjacent ends of coupling B 2 and coupling A 1. The second rubber inserts 603 on the first rubber ring 601 and the first rubber... The adhesive studs 602 are inserted into the fourth slot 604 and the first slot 6 respectively. Multiple adhesive strips 11 are passed through the first slot 5 in sequence. The second studs 702 on multiple nuts 701 are inserted into the second slot 7 at the right end of coupling A 1 in sequence. The second studs 702 pass through the third slot 703, the fifth slot 704, the sixth slot 12 and the anti-slip ring 707 in sequence, and the outer wall threaded nut 706 is installed. The left end of the spring 705 and the left end of the inner wall of the third slot 703 fit together, thereby installing coupling A 1 and coupling B 2 through the formed integral elastic sleeve.

Claims

1. A multi-spring cushioning device for a resilient sleeve pin coupling, comprising a coupling No. A (1); characterized in that: It also includes the second rubber ring (9) and the first fixed ring (801), the left of the A coupling (1) is provided with the B coupling (2), the A coupling (1) and the B coupling (2) are provided with a plurality of elastic sleeve pins for fastening and form a complete coupling structure, the left end of the A coupling (1) is placed with the second rubber ring (9) for buffering, the inner wall of the second rubber ring (9) is fixedly connected with the evenly distributed rubber pad (10), the left end of the second rubber ring (9) is placed with the clamping plate (803) corresponding to the number of the rubber pad (10), the left end of the second rubber ring (9) is fixedly connected with the rubber strip (11) corresponding to the number of the rubber pad (10), the left and right ends of the B coupling (2) are provided with the first insertion slot (5), the left end of the rubber strip (11) is provided with the sixth insertion slot (12) after penetrating through the first insertion slot (5).

2. The multi-spring cushioning device for an elastomeric bushed pin coupling as defined in claim 1, wherein: The left end of the A coupling (1) is provided with a plurality of screw grooves (8), the left end of the A coupling (1) is provided with a plurality of third studs (802), the ends of the plurality of clamping plates (803) close to each other are fixedly connected with the first fixed ring (801), the third stud (802) is threadedly installed on the screw groove (8) by penetrating through the first fixed ring (801).

3. The multi-spring cushioning device for an elastomeric bushed pin coupling as described in claim 1, wherein: The left and right ends of the A coupling (1) are provided with a plurality of second insertion slots (7), the left and right ends of the A coupling (1) are provided with a second shaft rod insertion slot (13), the left and right ends of the B coupling (2) are provided with a plurality of third insertion slots (703), the left end of the B coupling (2) is fixedly connected with the first insertion pipe (3), the left and right ends of the integral structure formed by the B coupling (2) and the first insertion pipe (3) are provided with a first shaft rod insertion slot (4).

4. The multi-spring cushioning device for a resilient bushed bushed pin coupling as defined in claim 1, wherein: The right end of the B coupling (2) is provided with a plurality of fourth insertion slots (604) which are circular and evenly distributed, the left end of the A coupling (1) is provided with a plurality of first column grooves (6) which are circular and evenly distributed, the second rubber insertion column (603) is inserted into the fourth insertion slot (604), the first rubber insertion column (602) is inserted into the first column groove (6), the first rubber insertion column (602) and the second rubber insertion column (603) are fixedly connected at the ends close to each other.

5. The multi-spring cushioning device for an elastomeric bushed pin coupling as defined in claim 3, wherein: The second insertion slot (7) is movably provided with a nut (701), the radius of the nut (701) is greater than that of the second insertion slot (7), the left end of the second insertion slot (7) is fixedly connected with a second stud (702), the right end of the B coupling (2) is provided with a third insertion slot (703), the third insertion slot (703) and the nut (701) are provided with a spring (705) at the ends close to each other.

6. The multi-spring cushioning device for a resilient bushed bushed pin coupling as defined in claim 1, wherein: The left and right ends of the B coupling (2) are provided with a plurality of fifth insertion slots (704) which are evenly distributed, the third insertion slot (703) and the fifth insertion slot (704) are mutually penetrated, the second stud (702) is provided with an anti-skid ring (707) on the outer wall after penetrating through the fifth insertion slot (704) and the sixth insertion slot (12), and the leftmost end of the second stud (702) is threadedly installed with a nut (706).

7. The multi-spring cushioning device for a resilient bushed bushed pin coupling as defined in claim 1, wherein: The right end of the clamping plate (803) is L-shaped, and the right end of the clamping plate (803) and the arc-shaped outer wall of the A coupling (1) are mutually attached.