Membrane disc coupler structure with large torque capacity
By employing spline nesting connection and deformable thin-walled curved surface torque transmission structure in the diaphragm coupling, the problem of insufficient torque transmission capacity of traditional diaphragm couplings is solved, achieving high torque transmission and anti-runaway function, and easy installation.
Patent Information
- Application Number
- CN202520932999.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-05-13
AI Technical Summary
Traditional diaphragm couplings are insufficient in torque transmission capacity in some applications with strict requirements on the outer diameter of the coupling and large working torque.
Two diaphragm discs are connected by spline nesting and secured with bolts and nuts. A deformable thin-walled curved torsion transmission surface is set between the diaphragm discs. Combined with the guard plate positioning structure, it realizes high torque transmission and anti-flying function.
It achieves high torque transmission capability, while also having a function to prevent the diaphragm disc from flying out, making it easy to install and highly adaptable.
Smart Images
Figure CN223953107U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the coupling transmission technical field relates to the membrane disc coupling structure with big torque ability. BACKGROUND
[0002] The membrane disc coupling is widely used in various pumps, fans and compressor units driven by gas turbines, steam turbines and electric motors, and is particularly suitable for high-speed high-power turbine compressor units which are sensitive to the weight and suspension bending moment of the coupling.
[0003] In the traditional membrane disc coupling, the membrane disc is generally used alone, which can meet most application occasions, but in some application occasions with strict requirements on the outer diameter of the coupling and large working torque, the torque transmission capacity of a single membrane disc is slightly insufficient. SUMMARY
[0004] The utility model discloses a membrane disc coupling structure with big torque ability can solve the above -mentioned problem, and has the function of preventing flying, and is convenient to install.
[0005] According to the technical scheme provided by the utility model: a membrane disc coupling structure with big torque ability, comprising a first membrane disc and a second membrane disc connected, the outer periphery of the first membrane disc is a first outer flange, the middle of the first membrane disc is a first hub, and the first outer flange and the first hub are a first torque transmission surface; the outer periphery of the second membrane disc is a second outer flange, the middle of the second membrane disc is a second hub, and the second outer flange and the second hub are a second torque transmission surface; a first torque transmission structure is arranged between the first outer flange and the second outer flange, and a second torque transmission structure is arranged between the first hub and the second hub.
[0006] As a further improvement of the utility model, the first torque transmission structure is a first torque transmission hole and a second torque transmission hole, the first torque transmission holes are uniformly distributed on the first outer flange, the second torque transmission holes are uniformly distributed on the second outer flange, and the first torque transmission hole and the second torque transmission hole are connected by bolts and nuts.
[0007] As a further improvement of the utility model, the second torque transmission structure is a meshing external spline and internal spline, the external spline is located on the outer periphery of the first hub, and the internal spline is located on the inner periphery of the second hub.
[0008] As a further improvement of the utility model, the outer periphery of the first hub is provided with external threads, the second hub is located on the outer side of the first hub, a nut is sleeved on the external threads, and the second hub is abutted against the nut and the first hub on both sides.
[0009] As a further improvement of the utility model, the first torque transmission surface and the second torque transmission surface are deformable thin-walled curved surfaces which are thin on the outside and thick on the inside along the radial direction.
[0010] As a further improvement of the utility model, a protective plate is installed on the outer side of the second membrane disc.
[0011] As a further improvement of the utility model, the middle part of the guard plate is a guard plate flange, the two sides of the guard plate flange are a stop opening and a cylinder, and the cylinder is located outside the second hub; the guard plate flange is provided with a connecting hole matched with the first torque transmission hole and the second torque transmission hole.
[0012] The positive progress effect of the present application is that:
[0013] 1. The utility model discloses a two membrane discs are connected together through the spline nesting mode, are pressed tightly through the compression nut, have the big torque transmission capacity while having certain compensation capacity, the guard plate and the membrane disc flange outer circle adopt the stop opening positioning, have the anti-flying function, and are convenient to install. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the structural schematic diagram of the utility model.
[0015] Figure 2 It is the structural schematic diagram of the first membrane disc of the utility model.
[0016] Figure 3 It is the structural schematic diagram of the second membrane disc of the utility model. DETAILED DESCRIPTION
[0017] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0018] In order to make the person skilled in the art better understand the utility model scheme, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.
[0019] It should be noted that the terms "first", "second" and the like in the description and claims of the utility model and the above drawings are used to distinguish like objects, and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged, where appropriate, to describe the embodiments of the utility model described herein. In addition, "including" and "having" and the like similar terms mean that in addition to those listed in "including" and "having", other contents not yet listed can also be "including" and "having"; for example, a process, method, system, product or device that can include a series of steps or units does not necessarily limit to those steps or units that have been clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0020] Due to the angle of the drawing, some parts may not be drawn, but their positions and connection relationships can be understood according to the textual expression part.
[0021] As Figure 1 shown, the utility model is a film disc coupling structure with large torque capacity, which comprises a first film disc 1 and a second film disc 2 connected, as Figure 2 shown, the outer periphery of the first film disc 1 is a first outer flange 11, the middle of the first film disc 1 is a first hub 14, and the first outer flange 11 and the first hub 14 are a first torque transmission surface 13; as Figure 3 shown, the outer periphery of the second film disc 2 is a second outer flange 21, the middle of the second film disc 2 is a second hub 24, and the second outer flange 21 and the second hub 24 are a second torque transmission surface 23; a first torque transmission structure is arranged between the first outer flange 11 and the second outer flange 21, and a second torque transmission structure is arranged between the first hub 14 and the second hub 24.
[0022] The first torque transmission structure is a first torque transmission hole 12 and a second torque transmission hole 22, the first torque transmission hole 12 is uniformly distributed on the first outer flange 11, the second torque transmission hole 22 is uniformly distributed on the second outer flange 21, and the first torque transmission hole 12 and the second torque transmission hole 22 are connected by bolts and nuts.
[0023] The second torque transmission structure is a meshing external spline 15 and internal spline 25, the external spline 15 is located on the outer periphery of the first hub 14, and the internal spline 25 is located on the inner periphery of the second hub 24.
[0024] The outer periphery of the first hub 14 is provided with an external thread 16, the second hub 24 is located on the outer side of the first hub 14, the nut 3 is sleeved on the external thread 16, and the second hub 24 is abutted against the nut 3 and the first hub 14 on both sides.
[0025] The first torque transmission surface 13 and the second torque transmission surface 23 are deformable thin-walled curved surfaces with thin outer and thick inner in the radial direction, so that the first torque transmission surface 13 and the second torque transmission surface 23 can realize axial, angular and radial compensation through the deflection deformation of the first torque transmission surface 13 and the second torque transmission surface 23 while transmitting large torque.
[0026] As shown in Figure 1 In order to prevent the first membrane disc 1 and the second membrane disc 2 from flying out, the second membrane disc 2 is provided with a guard plate 4 outside. The middle part of the guard plate 4 is a guard plate flange 41, and the two sides of the guard plate flange 41 are a stop 43 and a cylinder 44, and the cylinder 44 is located outside the second hub 24. The guard plate flange 41 is provided with a coupling hole 42 matched with the first torque transmission hole 12 and the second torque transmission hole 22, and the guard plate 4, the first membrane disc 1 and the second membrane disc 2 are connected through bolts. The stop 43 is positioned in cooperation with the outer circle of the first outer flange 11 and the second outer flange 21.
[0027] The two sides of the second hub 24 are connected with the second outer flange 21 and a connecting flange 26 respectively, the connecting flange 26 is uniformly provided with connecting holes 27, and the connecting holes 27 are used for connecting the equipment to be driven.
[0028] The working process of the utility model is as follows:
[0029] The two membrane discs are connected in series through the spline nesting mode, and are pressed through the nut, so that the membrane discs have large torque transmission capacity while having certain compensation capacity, the outer circle of the membrane disc flange and the guard plate is positioned through the stop, has the anti-flying function, and is convenient to install.
[0030] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the utility model, and the utility model is not limited to this. For ordinary skilled persons in the art, various modifications and improvements can be made without departing from the spirit and essence of the utility model, and these modifications and improvements are also regarded as the protection scope of the utility model.
Claims
1. A diaphragm disc coupling structure with high torque capability, characterized in that, The device includes a first diaphragm disc (1) and a second diaphragm disc (2) connected to each other. The outer periphery of the first diaphragm disc (1) is a first outer flange (11), the middle of the first diaphragm disc (1) is a first hub (14), and the first outer flange (11) and the first hub (14) are connected to a first torque transmission surface (13). The outer periphery of the second diaphragm disc (2) is a second outer flange (21), the middle of the second diaphragm disc (2) is a second hub (24), and the second outer flange (21) and the second hub (24) are connected to a second torque transmission surface (23). A first torque transmission structure is provided between the first outer flange (11) and the second outer flange (21), and a second torque transmission structure is provided between the first hub (14) and the second hub (24).
2. The diaphragm disc coupling structure with high torque capability as described in claim 1, characterized in that, The first torque transmission structure consists of a first torque transmission hole (12) and a second torque transmission hole (22). The first torque transmission hole (12) is evenly distributed on the first outer flange (11), and the second torque transmission hole (22) is evenly distributed on the second outer flange (21). The first torque transmission hole (12) and the second torque transmission hole (22) are connected by bolts and nuts.
3. The diaphragm disc coupling structure with high torque capability as described in claim 1, characterized in that, The second transmission structure consists of meshing external splines (15) and internal splines (25), with the external splines (15) located on the outer periphery of the first hub (14) and the internal splines (25) located on the inner periphery of the second hub (24).
4. The diaphragm disc coupling structure with high torque capability as described in claim 1, characterized in that, The first hub (14) has an external thread (16) on its outer periphery. The second hub (24) is located outside the first hub (14). A nut (3) is fitted on the external thread (16). The second hub (24) abuts against the nut (3) and the first hub (14) on both sides.
5. The diaphragm disc coupling structure with high torque capability as described in claim 1, characterized in that, Both the first torsion surface (13) and the second torsion surface (23) are deformable thin-walled curved surfaces that are thinner on the outside and thicker on the inside along the radial direction.
6. The diaphragm disc coupling structure with high torque capability as described in claim 1, characterized in that, The second membrane plate (2) has a protective plate (4) installed on its outer side.
7. The diaphragm disc coupling structure with high torque capability as described in claim 6, characterized in that, The middle part of the guard plate (4) is the guard plate flange (41), and the guard plate flange (41) has a stop (43) and a cylinder (44) on both sides. The cylinder (44) is located outside the second hub (24). The guard plate flange (41) is provided with a connecting hole (42) that is compatible with the first torque transmission hole (12) and the second torque transmission hole (22).