Diaphragm coupling

Abstract

The utility model provides a diaphragm coupling which comprises coupling bodies and a diaphragm, and the diaphragm is arranged between a pair of coupling bodies which are symmetrically arranged. A plurality of groups of membranes are adjacently and tightly attached; one end of the coupling body, which is far away from the diaphragm, is provided with an enclasping groove which is vertical to the diaphragm, the depth of the enclasping groove is not greater than the height of the coupling body, and the center of the enclasping groove is provided with a motor shaft hole. Due to the fact that the screw locking unit, the diaphragm locking hole and the diaphragm mounting hole in the coupler body are arranged in an axial symmetry mode, the inner hole precision of the coupler is effectively improved, the mounting difficulty and cost are reduced, meanwhile, stress of each part is even, the coupler can be kept balanced in the operation process after being mounted, the torque is improved, and the service life is prolonged. And a wider application range is obtained.

Description

Technical Field

[0001] The utility model relates to the field of couplings, in particular to the technical field of multiple diaphragms, and specifically to a diaphragm coupling. Background Art

[0002] Couplings usually include plum blossom couplings and diaphragm couplings. Since diaphragm couplings are metal flexible couplings, they are often used in high-temperature, high-speed, and corrosive media environments.

[0003] The diaphragm coupling uses the elastic deformation of the middle diaphragm to buffer the axial displacement and torque impact caused by the movement of the two end shafts. However, due to the presence of a certain gap between the diaphragms in the prior art, the transmission efficiency of the coupling is reduced. In addition, the installation accuracy of the diaphragm coupling and the manufacturing accuracy of the center axis are not high, which will cause the coaxiality of the coupling to be unstable. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a diaphragm coupling to solve the difficulties of the prior art.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a diaphragm coupling, comprising a coupling body 1 and a diaphragm 2, wherein the diaphragm 2 is arranged between a pair of symmetrically arranged coupling bodies 1;

[0006] The membrane sheets 2 are arranged in multiple groups in close proximity to each other;

[0007] A clamping groove 3 perpendicular to the diaphragm 2 is provided on one end of the coupling body 1 away from the diaphragm 2 . The depth of the clamping groove 3 is not greater than the height of the coupling body 1 . A motor shaft hole 4 is provided at the center of the clamping groove 3 .

[0008] According to a preferred embodiment, the coupling body 1 includes a first connecting end 11 and a second connecting end 12 which are integrally arranged;

[0009] A horizontal main buffer groove 5 is provided between the first connection end 11 and the second connection end 12, one side of the main buffer groove 5 is open, and the other side does not exceed the motor shaft hole 4;

[0010] The motor shaft hole 4 is axially disposed in the first connecting end 11 and penetrates through the main buffer groove 5 and ends at the end surface of the second connecting end 12 close to the first connecting end 11;

[0011] A screw locking unit is provided on the first connecting end 11 in a direction parallel to the main buffer groove 5 , and the screw locking unit is vertically disposed through the clamping groove 3 .

[0012] According to a preferred embodiment, the screw locking unit comprises:

[0013] An inlet groove 6 is provided, wherein the inlet groove 6 is provided from the outer side surface of the coupling body 1 toward the clamping groove 3;

[0014] A connecting through hole 7, wherein the connecting through hole 7 is provided between the introduction sink groove 6 and the clamping groove 3;

[0015] The locking countersunk hole 8 is provided on the coupling body 1 on the other side of the clamping groove 3 .

[0016] According to a preferred solution, the inner diameter of the connecting through hole 7 is smaller than the inner diameter of the introduction sink 6 .

[0017] According to a preferred embodiment, a group of screw locking units are symmetrically arranged on each coupling body 1 .

[0018] According to a preferred embodiment, an auxiliary buffer groove 9 is further provided on the coupling body 1 below the screw locking unit on the other side.

[0019] According to a preferred solution, the depth of the auxiliary buffer groove 9 does not exceed the midpoint of the connecting through hole 7 .

[0020] According to the preferred embodiment, the coupling body 1 and the diaphragm 2 are also provided with a penetrating diaphragm locking hole 10, and the diaphragm locking hole 10 is symmetrically arranged diagonally with the clamping groove 3 as the symmetry axis;

[0021] The coupling body 1 is provided with a pair of diaphragm locking holes 10 located on the same side of the clamping groove 3 .

[0022] According to a preferred embodiment, a penetrating diaphragm mounting hole 13 is provided on the diaphragm 2 and the second connecting end 12 .

[0023] According to a preferred solution, a group of diaphragm mounting holes 13 are provided, which are located in the main buffer groove 5 .

[0024] The utility model adopts a diaphragm structure that is closely arranged adjacent to each other to achieve zero rotational gap, and cooperates with a coupling body that is symmetrically arranged on both sides. Since the screw locking unit, the diaphragm locking hole and the diaphragm mounting hole in the coupling body are all axially symmetrically arranged, the inner hole accuracy of the coupling is effectively improved, the installation difficulty and cost are reduced, and each part is subjected to uniform force. After installation, the coupling can maintain balance during operation, improve torque and service life, and obtain a wider range of applications.

[0025] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 Shown is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0028] Figure 3 Shown is a top view of the utility model;

[0029] Figure 4 Shown is a cross-sectional view of the present utility model;

[0030] Figure 5 Shown is an enlarged schematic diagram of the three-dimensional structure of the coupling body in the utility model;

[0031] Figure 6 Shown is an enlarged schematic diagram of the three-dimensional structure of the diaphragm in the present invention;

[0032] Description of symbols

[0033] 1. Coupling body; 2. Diaphragm; 3. Clamping groove; 4. Motor shaft hole; 5. Main buffer groove; 6. Inlet countersunk groove; 7. Connecting through hole; 8. Locking countersunk hole; 9. Auxiliary buffer groove; 10. Diaphragm locking hole; 11. First connecting end; 12. Second connecting end; 13. Diaphragm mounting hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0036] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The utility model provides a diaphragm coupling used in a metal flexible coupling. The utility model does not limit the types of the main shaft and the driven shaft at both ends, but the structure of the diaphragm coupling is particularly suitable for environments with high temperature, high speed and corrosive media.

[0038] In general, the diaphragm coupling proposed in the present invention mainly includes a coupling body 1 and a diaphragm 2. Figure 1 , which shows the arrangement relationship between the coupling body 1 and the diaphragm 2.

[0039] In order to improve the dynamic performance of the shaft system of the diaphragm coupling, the problem in the background technology that the diaphragm coupling uses the elastic deformation of the middle diaphragm to buffer the axial displacement and torque impact caused by the movement of the shaft bodies at both ends is solved. However, due to the existence of a certain gap between the diaphragms in the prior art, the transmission efficiency of the coupling is reduced, and the installation accuracy of the diaphragm coupling and the manufacturing accuracy of the center axis are not high, which will lead to the problem of unstable coaxiality of the coupling. For this reason, in the technical solution provided in this embodiment, a diaphragm 2 structure with adjacent and closely arranged diaphragms is adopted to achieve zero rotational gap, and the coupling body 1 is symmetrically arranged on both sides. Since the screw locking unit, the diaphragm locking hole and the diaphragm mounting hole in the coupling body 1 are all axially symmetrically arranged, the inner hole accuracy of the coupling is effectively improved, the installation difficulty and cost are reduced, and each part is subjected to uniform force. After installation, the coupling can maintain balance during operation, improve torque and service life, and obtain a wider range of applications.

[0040] Compact structure, high strength, no rotation gap,

[0041] like Figure 1As shown, multiple groups of diaphragms 2 are arranged closely adjacent to each other, and the diaphragm 2 is arranged between a pair of symmetrically arranged coupling bodies 1. In order to achieve a locking effect between the diaphragm 2 and the coupling body 1, a penetrating diaphragm locking hole 10 is also opened on the coupling body 1 and the diaphragm 2.

[0042] As mentioned above, the diaphragm locking hole 10 provided in the present embodiment is axially symmetrically arranged, and therefore the coupling body 1 is arranged in a style with a symmetrical structure, wherein a motor shaft hole 4 is opened at the center, and a clamping groove 3 perpendicular to the diaphragm 2 is opened on the end of the coupling body 1 away from the diaphragm 2, and the clamping groove 3 passes through the motor shaft hole 4. Then, the diaphragm locking hole 10 is diagonally symmetrically arranged with the clamping groove 3 as the symmetry axis, and a pair of diaphragm locking holes 10 on the same side of the clamping groove 3 of the coupling body 1 are arranged.

[0043] On this basis, in order to achieve precise positioning between the diaphragms 2 and 2, a penetrating diaphragm mounting hole 13 is also provided between the multi-layer diaphragms 2, and a corresponding diaphragm mounting hole 13 is provided on the side of the coupling body 1 close to the diaphragm 2, that is, on the second connecting end 2. During installation, a bolt can be passed through to tighten it, thereby achieving zero rotational clearance while maintaining balance and improving stability.

[0044] As mentioned above, the coupling body 1 includes a first connecting end 11 and a second connecting end 12 that are integrally arranged, and a horizontal main buffer groove 5 is opened between the first connecting end 11 and the second connecting end 12. One side of the main buffer groove 5 is open, and the other side does not exceed the motor shaft hole 4, which effectively absorbs impact, prolongs the service life, and does not affect the installation of the motor shaft; Figure 2 As shown, an auxiliary buffer groove 9 is provided on the coupling body 1 on the side away from the main buffer groove 5, that is, below the screw locking unit on the other side, to further increase buffering and reduce vibration and impact;

[0045] Next, the motor shaft hole 4 is axially disposed in the first connection end 11 and passes through the main buffer groove 5 and ends at the end surface of the second connection end 12 close to the first connection end 11, so as to avoid too close contact with the diaphragm 2, reduce the influence of the main shaft and the driven shaft on the diaphragm 2, and improve stability;

[0046] In addition, since the motor shaft hole 4 is arranged through the clamping groove 3, in order to realize the locking effect on the main shaft and the driven shaft, a screw locking unit is opened on the first connecting end 11 in a direction parallel to the main buffer groove 5, and the screw locking unit is arranged vertically through the clamping groove 3; Figure 2 and 4 As shown, on one side of the clamping groove 3, a connected introduction sink groove 6 and a connecting through hole 7 are provided.

[0047] The introduction countersunk groove 6 is opened from the outer side surface of the coupling body 1 toward the clamping groove 3, and the connecting through hole 7 is opened between the introduction countersunk groove 6 and the clamping groove 3. Since the inner diameter of the connecting through hole 7 is smaller than the inner diameter of the introduction countersunk groove 6, it is convenient for the operator to quickly introduce the connecting screw to achieve positioning. On the other side, the locking countersunk hole 8 is opened on the coupling body 1 on the other side of the clamping groove 3 to avoid excessive installation of the screws, which also protects the main shaft and the driven shaft.

[0048] On this basis, preferably, a group of screw locking units are symmetrically arranged on each coupling body 1, so as to stabilize the main shaft and the driven shaft from two directions and effectively improve the dynamic performance of the shaft system.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A diaphragm coupling, characterized in that: include: A coupling body (1) and a diaphragm (2), wherein the diaphragm (2) is arranged between a pair of symmetrically arranged coupling bodies (1); The membrane sheets (2) are arranged in a plurality of groups in close proximity to each other; A clamping groove (3) perpendicular to the diaphragm (2) is provided on one end of the coupling body (1) away from the diaphragm (2); the depth of the clamping groove (3) is not greater than the height of the coupling body (1); and a motor shaft hole (4) is provided at the center of the clamping groove (3); The coupling body (1) comprises a first connecting end (11) and a second connecting end (12) which are integrally arranged; A horizontal main buffer groove (5) is provided between the first connecting end (11) and the second connecting end (12); one side of the main buffer groove (5) is open, and the other side does not exceed the motor shaft hole (4); The motor shaft hole (4) is axially disposed inside the first connecting end (11) and penetrates through the main buffer groove (5) and ends at an end surface of the second connecting end (12) close to the first connecting end (11); A screw locking unit is provided on the first connection end (11) in a direction parallel to the main buffer groove (5), and the screw locking unit is vertically passed through the clamping groove (3); The screw locking unit comprises: An inlet groove (6), wherein the inlet groove (6) is opened from the outer side surface of the coupling body (1) toward the clamping groove (3); A connecting through hole (7), the connecting through hole (7) being provided between the introduction sink groove (6) and the clamping groove (3); A locking countersunk hole (8), wherein the locking countersunk hole (8) is formed on the coupling body (1) on the other side of the clamping groove (3); The screw locking units are symmetrically arranged in a group on each coupling body (1); An auxiliary buffer groove (9) is also provided on the coupling body (1) below the screw locking unit on the other side; The coupling body (1) and the diaphragm (2) are also provided with penetrating diaphragm locking holes (10), and the diaphragm locking holes (10) are symmetrically arranged diagonally with the clamping groove (3) as the symmetry axis; The coupling body (1) is provided with a pair of diaphragm locking holes (10) located on the same side of the clamping groove (3); The diaphragm (2) and the second connecting end (12) are also provided with a penetrating diaphragm mounting hole (13).

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