Buffering coupling
By designing axial and lateral buffering mechanisms for the buffer coupling, the problem of insufficient buffering of existing couplings under lateral impact or vibration is solved, achieving multi-stage buffering effect and extending the service life of the equipment.
Patent Information
- Application Number
- CN202520747997.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-21
AI Technical Summary
Existing couplings are not sufficiently effective at buffering lateral impacts or vibrations, causing vibrations to be directly transmitted to motors, reducers, and other equipment, leading to bearing wear, gear failure, or even structural breakage.
Design a buffer coupling that includes an axial buffer mechanism and a lateral buffer mechanism. Utilize components such as buffer airbags, springs, and buffer sleeves to work together to achieve multi-stage axial and lateral buffering, absorb energy, and counteract vibration.
It significantly reduces vibration transmission, extends equipment lifespan, prevents equipment from shifting, and improves buffering effect.
Smart Images
Figure CN223953114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of couplings, and more specifically, to a buffer coupling. Background Technology
[0002] Couplings are used to connect two shafts or a shaft and a rotating component, which rotate together during the transmission of motion and power. Sometimes they are also used as a safety device to prevent the connected components from bearing excessive loads, thus providing overload protection.
[0003] As a key component of power transmission, couplings need to be buffered when rotating at high speed or experiencing sudden load changes. Most existing couplings adopt axial buffering structures, but their buffering effect is insufficient under lateral impact or vibration, causing vibration to be directly transmitted to equipment such as motors and reducers, leading to bearing wear, gear failure, or even structural breakage. How to invent a buffer coupling to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a buffer coupling, which aims to improve the problem that existing couplings mostly adopt axial buffer structures, but the buffering effect is insufficient under lateral impact or vibration, causing vibration to be directly transmitted to equipment such as motors and reducers, resulting in bearing wear, gear failure, or even structural breakage.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a buffer coupling, including an upper coupling and a lower coupling. An upper bushing and a lower bushing are respectively connected to the upper coupling and the lower coupling. A buffer seat is provided between the upper coupling and the lower coupling. An axial buffer mechanism is provided on the outer wall of the buffer seat, which can provide axial buffering for the coupling. A transverse buffer mechanism is provided on the left and right side walls of the buffer seat, which can provide radial buffering for the coupling.
[0007] Preferably, the axial buffer mechanism includes multiple sets of positioning sleeves on the outer wall of the buffer seat, two sets of sliding rods on the inner wall of the positioning sleeves, two sets of extrusion plates sleeved on the outer walls of the two sets of sliding rods, springs sleeved on the outer walls of the two sets of sliding rods, a buffer airbag inside the positioning sleeve, the side walls of the extrusion plates contacting the buffer airbag, buffer rods on the two sets of extrusion plates away from each other, and a buffer plate at one end of each set of buffer rods.
[0008] Preferably, the transverse buffer mechanism includes a sleeve provided on both the left and right side walls of the buffer seat, a buffer sleeve movably passing through the outer side wall of the sleeve, and multiple sets of buffer springs provided on the inner side wall of the sleeve, with one end of the buffer spring connected to the side wall of the buffer sleeve.
[0009] Preferably, multiple sets of buffer springs are distributed in a ring array on the inner wall of the sleeve.
[0010] Preferably, the buffer air bag is a ring-shaped air bag.
[0011] Preferably, the positioning sleeve is clamped on the gap between the upper half-coupling and the lower half-coupling.
[0012] The beneficial effects of the present application are:
[0013] 1. The axial buffering mechanism is set, under the synergistic effect of the buffer air bag and the spring, the axial impact is converted into elastic deformation through the slide rod and the buffer plate, and the energy is effectively absorbed.
[0014] 2. The transverse buffering mechanism is set, the buffer sleeve cooperates with the buffer spring, the transverse vibration is offset through radial elastic deformation, and the equipment movement is prevented.
[0015] 3. The axial and transverse buffering mechanisms work independently and complementarily, the vibration transmission is significantly reduced, and the service life of the equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0017] Figure 1 is a schematic diagram of the overall structure of the present application;
[0018] Figure 2 is a schematic diagram of the buffer seat, positioning sleeve and sleeve structure of the present application;
[0019] Figure 3 is a schematic diagram of the present application Figure 1 A structure enlarged view in the middle;
[0020] Figure 4 is a schematic diagram of the present application Figure 2 B structure enlarged view in the middle.
[0021] In the figure: 1, upper half-coupling; 2, upper shaft sleeve; 3, lower half-coupling; 4, lower shaft sleeve; 5, buffer seat; 6, axial buffering mechanism; 600, positioning sleeve; 601, buffer air bag; 602, slide rod; 603, spring; 604, extrusion plate; 605, buffer rod; 606, buffer plate; 7, transverse buffering mechanism; 700, sleeve; 701, buffer sleeve; 702, buffer spring. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0023] Embodiment, refer to Figures 1-4 A buffer coupling device, comprising an upper half coupling device 1 and a lower half coupling device 3, an upper shaft sleeve 2 and a lower shaft sleeve 4 are respectively connected on the upper half coupling device 1 and the lower half coupling device 3, a buffer seat 5 is arranged between the upper half coupling device 1 and the lower half coupling device 3, an axial buffer mechanism 6 is arranged on the outer side wall of the buffer seat 5, the axial buffer mechanism 6 can buffer the coupling device in the axial direction, a lateral buffer mechanism 7 is arranged on the left and right side walls of the buffer seat 5, and the lateral buffer mechanism 7 can buffer the coupling device in the radial direction.
[0024] The axial buffer mechanism 6 comprises a plurality of positioning sleeves 600 arranged on the outer side wall of the buffer seat 5, the positioning sleeves 600 are clamped on the gap between the upper half coupling device 1 and the lower half coupling device 3, when the upper half coupling device 1 and the lower half coupling device 3 are clamped with each other, a gap is generated between the upper half coupling device 1 and the lower half coupling device 3, so that the positioning sleeves 600 are located in the gap, two groups of buffer plates 606 can contact the upper half coupling device 1 and the lower half coupling device 3, so that the coupling device can be axially buffered, two groups of slide rods 602 are arranged on the inner wall of the positioning sleeve 600, two groups of extrusion plates 604 are sleeved on the outer walls of the two groups of slide rods 602, springs 603 are sleeved on the outer walls of the two groups of slide rods 602, a buffer air bag 601 is arranged in the positioning sleeve 600, the side wall of the extrusion plate 604 is in contact with the buffer air bag 601, the buffer air bag 601 is a ring-shaped air bag, the side walls of the two groups of extrusion plates 604 away from each other are provided with buffer rods 605, and the buffer rods 605 are provided with the buffer plates 606 at one end.
[0025] It should be noted that the spring 603 is a spiral compression spring, the elastic coefficient is 50-80 N / mm, the buffer air bag 601 is made of nitrile rubber material, the inflation pressure is 0.3-0.5 MPa, the extrusion plate 604 is a rectangular aluminum alloy plate, and a polytetrafluoroethylene coating layer is coated on the surface of the extrusion plate 604, so that the friction between the extrusion plate 604 and the upper half coupling device 1 and the lower half coupling device 3 can be reduced, and the buffering effect can be improved.
[0026] The transverse buffering mechanism 7 comprises sleeve pipes 700 arranged on the left and right side walls of the buffering seat 5, buffering sleeves 701 movably penetrating the outer side walls of the sleeve pipes 700, and a plurality of buffering springs 702 arranged on the inner side walls of the sleeve pipes 700 and connected to the side walls of the buffering sleeves 701, and the plurality of buffering springs 702 are arranged in a ring array on the inner side walls of the sleeve pipes 700, so that the buffering springs 702 can be uniformly distributed in the gap between the buffering sleeves 701 and the sleeve pipes 700, and when transverse vibration occurs, the buffering sleeves 701 are displaced radially, and the buffering springs 702 are elastically deformed to offset the vibration energy.
[0027] It should be noted that the buffering sleeves 701 are made of polyurethane, and the inner walls of the buffering sleeves 701 are provided with a graphite lubricating layer to further reduce friction loss and improve buffering effect.
[0028] Working principle: when the shaft coupling is used, the upper shaft sleeve 2 is connected to the output end of an external motor or reducer, and the lower shaft sleeve 4 is connected to an external driving shaft, and when the shaft coupling is used, the axial impact force is transmitted to the buffering plate 606, so that the extrusion rod 605 pushes the extrusion plate 604, the extrusion plate 604 compresses the spring 603, and the buffering air bag 601 is extruded, the spring 603 provides linear buffering force, the buffering air bag 601 is deformed by gas compression to absorb high-frequency impact, and the two cooperate to realize multi-stage buffering; when transverse vibration occurs, the buffering sleeves 701 are radially displaced in the sleeve pipes 700 and extrude the buffering springs 702, and the buffering springs 702 are elastically deformed to offset the displacement energy, thereby further attenuating the vibration.
[0029] It should be noted that the specific model and specifications need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the art, so it will not be described in detail.
[0030] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be changed and modified in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A buffer coupling, comprising an upper coupling (1) and a lower coupling (3), wherein an upper bushing (2) and a lower bushing (4) are respectively connected to the upper coupling (1) and the lower coupling (3), characterized in that: A buffer seat (5) is provided between the upper half coupling (1) and the lower half coupling (3). An axial buffer mechanism (6) is provided on the outer wall of the buffer seat (5). The axial buffer mechanism (6) can provide axial buffer for the coupling. A transverse buffer mechanism (7) is provided on the left and right side walls of the buffer seat (5). The transverse buffer mechanism (7) can provide radial buffer for the coupling.
2. The buffer coupling according to claim 1, characterized in that, The axial buffer mechanism (6) includes multiple sets of positioning sleeves (600) provided on the outer wall of the buffer seat (5). The inner wall of the positioning sleeve (600) is provided with two sets of sliding rods (602). The outer walls of the two sets of sliding rods (602) are sleeved with two sets of extrusion plates (604). The outer walls of the two sets of sliding rods (602) are sleeved with springs (603). The positioning sleeve (600) is provided with a buffer airbag (601). The side walls of the extrusion plates (604) are in contact with the buffer airbag (601). The side walls of the two sets of extrusion plates (604) are provided with buffer rods (605) on opposite sides. One end of each set of buffer rods (605) is provided with a buffer plate (606).
3. The buffer coupling according to claim 1, characterized in that, The transverse buffer mechanism (7) includes a sleeve (700) provided on both the left and right side walls of the buffer seat (5). A buffer sleeve (701) is movably provided through the outer side wall of the sleeve (700). Multiple sets of buffer springs (702) are provided on the inner side wall of the sleeve (700). One end of the buffer spring (702) is connected to the side wall of the buffer sleeve (701).
4. A buffer coupling according to claim 3, characterized in that, Multiple sets of buffer springs (702) are arranged in a ring array on the inner sidewall of the sleeve (700).
5. A buffer coupling according to claim 1, characterized in that, The buffer airbag (601) is a ring-shaped airbag.
6. A buffer coupling according to claim 1, characterized in that, The positioning sleeve (600) is engaged in the gap between the upper half coupling (1) and the lower half coupling (3).