A ring-shaped membrane disc, flange and transmission connection assembly

Abstract

The application provides a ring-shaped membrane disc, a flange and a transmission connection assembly. The ring-shaped membrane disc comprises a membrane disc body, a corrugated skirt structure is formed at one end of the membrane disc body in the radial direction, the corrugated skirt structure comprises a membrane disc skirt convex part and a membrane disc skirt concave part, and the membrane disc skirt concave part and the membrane disc skirt convex part are arranged alternately in the circumferential direction of the membrane disc body. The transmission object and / or the driven object can be connected with the ring-shaped membrane disc through the corrugated skirt structure. No stress concentration is generated at the connection, and the safety, power density and service life of the ring-shaped membrane disc are greatly improved. The ring-shaped membrane disc is detachable, and the maintenance cost is low. The problems of local stress concentration and reduced load bearing capacity of the membrane disc when the pin hole and the bolt with the pin are used to connect the membrane disc and the flange in the prior art are solved. The problems of being unable to be disassembled and maintained when the welding method is used to connect the membrane disc and the flange in the prior art and the problem of low material strength at the welding seam when a high-strength material is used to manufacture the membrane disc are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of transmission, and particularly relates to a ring-shaped membrane disc, a flange and a transmission connection assembly. BACKGROUND

[0002] The membrane disc coupling is widely used in mechanical transmission, but the connection between the existing membrane disc and the flange disc is a weak link. The commonly used pin hole and bolt connection mode is prone to stress concentration near the pin hole. The stress near the pin hole can be three times or even more than the stress at other positions of the membrane disc, which undoubtedly has a great influence on the safety of the membrane disc coupling and the carrying capacity per unit volume. Some people propose to use welding to connect the membrane disc and the flange disc, but the welding method also has great defects, such as the welded structure cannot be disassembled. If individual parts have problems, the whole can only be scrapped. In addition, the membrane disc made of high-strength material is often difficult to weld. After welding, it is either cracked or the material strength at the weld is greatly reduced, which is contrary to improving the safety of the coupling and the power density. Therefore, it is of great practical significance to design a mechanical connection mode that almost does not produce local stress concentration for improving the performance of the membrane disc coupling. SUMMARY

[0003] In view of this, the present application provides a ring-shaped membrane disc, a flange and a transmission connection assembly to solve the problems of local stress concentration and reduced carrying capacity of the membrane disc when the pin hole and bolt connection mode is used to connect the membrane disc and the flange disc, and the problems of being unable to disassemble and repair when the welding method is used to connect the membrane disc and the flange disc, and the problem of low material strength at the weld when the membrane disc is made of high-strength material.

[0004] The present application provides a ring-shaped membrane disc, which comprises a membrane disc body, and a membrane disc corrugated skirt structure is formed at one end of the membrane disc body in the radial direction, and the membrane disc corrugated skirt structure is used for transmission connection with a transmission object and / or a driven object.

[0005] The membrane disc corrugated skirt structure alternately comprises a membrane disc skirt convex portion and a membrane disc skirt concave portion in the circumferential direction of the membrane disc body, wherein the membrane disc skirt convex portion protrudes to one side of the membrane disc body in the axial direction, and the membrane disc skirt concave portion is recessed to the other side of the membrane disc body in the axial direction.

[0006] The protrusion height of the membrane disc skirt convex portion and the recess depth of the membrane disc skirt concave portion gradually decrease to the membrane disc body in the radial direction of the membrane disc body, respectively.

[0007] Further optionally, on any axial side of the membrane disc body, the convex surface of the membrane disc skirt convex portion and the concave surface of the membrane disc skirt concave portion gradually and smoothly transition to the corresponding axial side surface of the membrane disc body in the radial direction of the membrane disc body, respectively.

[0008] Further optionally, the membrane disc skirt convex portion is formed with a membrane disc skirt convex portion circumferential contour line, and the membrane disc skirt concave portion is formed with a membrane disc skirt concave portion circumferential contour line on a circumferential section of the membrane disc corrugated skirt structure.

[0009] In a case where the circumferential section of the membrane disc corrugated skirt structure is unfolded as a plane, the membrane disc skirt convex portion circumferential contour line and the membrane disc skirt concave portion circumferential contour line are both circular arc lines, or one of the membrane disc skirt convex portion circumferential contour line and the adjacent one of the membrane disc skirt concave portion circumferential contour line constitute a periodic sinusoidal curve.

[0010] Wherein, the circumferential section of the membrane disc corrugated skirt structure is a circumferential section formed by cutting a cylindrical surface coaxially arranged with the membrane disc main body.

[0011] Further optionally, the membrane disc corrugated skirt structure comprises a first corrugated segment and a second corrugated segment in the radial direction of the membrane disc main body, the first corrugated segment is arranged away from the membrane disc main body, and the second corrugated segment is arranged close to the membrane disc main body.

[0012] The corrugated height of the first corrugated segment linearly decreases in the direction from the first corrugated segment to the second corrugated segment.

[0013] In the radial direction of the membrane disc main body, the second corrugated segment and the first corrugated segment are tangentially connected, and the second corrugated segment and the membrane disc main body are both tangentially connected.

[0014] Further optionally, the membrane disc corrugated skirt structure is formed by calendering stretching from one end in the radial direction of the membrane disc main body.

[0015] Further optionally, the membrane disc skirt convex portion and the adjacent membrane disc skirt concave portion are tangentially connected, and the included angle between the tangent plane A where the membrane disc skirt convex portion and the adjacent membrane disc skirt concave portion are tangentially connected and the central plane of the membrane disc main body is α, the α satisfies: 20°≤α≤35° at the radial end of the membrane disc main body; and / or,

[0016] The included angle between the tangent plane B where the outer contour peak line of the membrane disc skirt convex portion passes through and the central plane of the membrane disc main body is β, the β satisfies: 4.5°≤β≤12°; wherein, in the axial direction of the membrane disc main body, the outer contour peak line of the membrane disc skirt convex portion is arranged away from the central plane of the membrane disc main body, and the inner contour peak line of the membrane disc skirt convex portion is arranged close to the central plane of the membrane disc main body.

[0017] Further optionally, the radial width of the membrane disc corrugated skirt structure along the membrane disc main body is W10, the radial width of the first corrugated segment along the membrane disc main body is W11, and the W10 and W11 satisfy: 60%≤W11 / W10≤80%.

[0018] Further optionally, the membrane disc body comprises a membrane disc radial inner edge and a membrane disc radial outer edge disposed in radial opposition along the membrane disc body, and the membrane disc corrugated skirt structure is formed at least at the membrane disc radial inner edge.

[0019] Further optionally, the membrane disc radial inner edge forms a membrane disc corrugated inner skirt structure, the first corrugated segment of the membrane disc corrugated inner skirt structure is a first inner corrugated segment, and the second corrugated segment of the membrane disc corrugated inner skirt structure is a second inner corrugated segment.

[0020] The first inner corrugated segment, the second inner corrugated segment, and the membrane disc body are sequentially arranged from inside to outside along the radial direction of the membrane disc body, and the corrugated height of the first inner corrugated segment linearly decreases from inside to outside along the radial direction of the membrane disc body.

[0021] Further optionally, the membrane disc radial outer edge forms a membrane disc corrugated outer skirt structure, the first corrugated segment of the membrane disc corrugated outer skirt structure is a first outer corrugated segment, and the second corrugated segment of the membrane disc corrugated outer skirt structure is a second outer corrugated segment.

[0022] The first outer corrugated segment, the second outer corrugated segment, and the membrane disc body are sequentially arranged from outside to inside along the radial direction of the membrane disc body, and the corrugated height of the first outer corrugated segment linearly decreases from outside to inside along the radial direction of the membrane disc body.

[0023] The present application also provides a flange, comprising a flange disc and a shaft extension, the shaft extension being disposed at an axial end of the flange disc; the shaft extension comprises a shaft extension body, the shaft extension body being formed with a shaft extension corrugated skirt structure; the shaft extension corrugated skirt structure is located at a radial end of the shaft extension body and is away from the flange disc; the shaft extension corrugated skirt structure has a structure cooperating with the membrane disc corrugated skirt structure of any one of the above.

[0024] The present application also provides a flange, comprising a flange disc and a shaft extension, the shaft extension being disposed at an axial end of the flange disc; the shaft extension comprises a shaft extension body, the shaft extension body being formed with a shaft extension corrugated skirt structure; the shaft extension corrugated skirt structure is located at a radial end of the shaft extension body and is away from the flange disc; the shaft extension corrugated skirt structure is used for driving connection with a driving object and / or a driven object.

[0025] The shaft extension corrugated skirt structure is alternately formed with a shaft extension protrusion and a shaft extension recess along the circumferential direction of the shaft extension body; wherein the shaft extension protrusion protrudes to one axial side of the shaft extension body, and the shaft extension recess is recessed to the other axial side of the shaft extension body.

[0026] The shaft extension protrusion and the shaft extension recess each gradually and smoothly transition to the shaft extension body in a radial direction of the shaft extension body.

[0027] Further optionally, in a circumferential cross-section of the shaft extension corrugated skirt structure, the shaft extension protrusion is formed with a shaft extension protrusion circumferential profile line, and the shaft extension recess is formed with a shaft extension recess circumferential profile line.

[0028] In a case where the circumferential cross-section of the shaft extension corrugated skirt structure is unfolded as a plane, the shaft extension protrusion circumferential profile line and the shaft extension recess circumferential profile line are each a circular arc line, or one shaft extension protrusion circumferential profile line and an adjacent shaft extension recess circumferential profile line constitute a periodic sinusoidal curve.

[0029] The circumferential cross-section of the shaft extension corrugated skirt structure is a circumferential cross-section formed by cutting a cylindrical surface coaxial with the shaft extension body.

[0030] Further optionally, the shaft extension corrugated skirt structure includes a third corrugated segment and a fourth corrugated segment in a radial direction of the shaft extension body, the third corrugated segment is disposed away from the shaft extension body, and the fourth corrugated segment is disposed close to the shaft extension body.

[0031] In a direction from the third corrugated segment to the fourth corrugated segment, a corrugation height of the third corrugated segment linearly decreases.

[0032] In the radial direction of the shaft extension body, the third corrugated segment and the fourth corrugated segment are tangentially connected, and the third corrugated segment and the shaft extension body are tangentially connected.

[0033] Further optionally, the shaft extension corrugated skirt structure is formed by cutting or pressure processing or electrical processing from a radial end of the shaft extension body.

[0034] Further optionally, the shaft extension protrusion and the adjacent shaft extension recess are tangentially connected, and an included angle between a tangent plane C at which the shaft extension protrusion and the adjacent shaft extension recess are tangentially connected and a center plane of the shaft extension body is γ, the γ satisfies 20°≤γ≤35° at a radial end of the shaft extension body.

[0035] Further optionally, an included angle between a tangent plane D passing through an outer profile peak line of the shaft extension protrusion and the center plane of the shaft extension body is θ, the θ satisfies 4.5°≤θ≤12°.

[0036] In an axial direction of the shaft extension body, from the center plane of the shaft extension body to the shaft extension protrusion, the outer profile peak line of the shaft extension protrusion is disposed away from the center plane of the shaft extension body, and the inner profile peak line of the shaft extension recess is disposed close to the center plane of the shaft extension body.

[0037] Further optionally, the axial extension corrugated skirt structure has a radial width W20 along the axial extension body, the third corrugated segment has a radial width W21 along the axial extension body, and the W20 and the W21 satisfy: 60%≤W21 / W20≤80%.

[0038] Further optionally, the axial extension body includes an axial extension radial inner edge and an axial extension radial outer edge, and the axial extension radial inner edge or the axial extension radial outer edge is formed with the axial extension corrugated skirt structure.

[0039] Further optionally, the axial extension radial inner edge is formed with an axial extension corrugated inner skirt structure, the third corrugated segment of the axial extension corrugated inner skirt structure is a third inner corrugated segment, and the fourth corrugated segment of the axial extension corrugated inner skirt structure is a fourth inner corrugated segment.

[0040] The third inner corrugated segment, the fourth inner corrugated segment, and the axial extension body are sequentially arranged along the radial direction of the axial extension body from inside to outside, and the corrugated height of the third inner corrugated segment linearly decreases along the radial direction of the axial extension body from inside to outside.

[0041] Further optionally, the axial extension radial outer edge is formed with an axial extension corrugated outer skirt structure, the third corrugated segment of the axial extension corrugated outer skirt structure is a third outer corrugated segment, and the fourth corrugated segment of the axial extension corrugated outer skirt structure is a fourth outer corrugated segment.

[0042] The third outer corrugated segment, the fourth outer corrugated segment, and the axial extension body are sequentially arranged along the radial direction of the axial extension body from outside to inside, and the corrugated height of the third outer corrugated segment linearly decreases along the radial direction of the axial extension body from outside to inside.

[0043] The application further provides a transmission connection assembly, which includes an inner flange and any one of the annular diaphragm plates described above, and the inner flange is any one of the flanges described above.

[0044] The radial inner edge of the diaphragm plate body is formed with the diaphragm plate corrugated skirt structure, and the radial outer edge of the diaphragm plate body is formed with a diaphragm plate pin hole; and the radial inner edge of the axial extension body of the inner flange is formed with the axial extension corrugated skirt structure.

[0045] The transmission connection assembly further includes an outer flange, and the flange plate of the outer flange is formed with an outer flange pin hole.

[0046] The diaphragm plate corrugated skirt structure and the axial extension corrugated skirt structure are matched, the diaphragm plate pin hole and the outer flange pin hole are matched, and then the annular diaphragm plate can be connected with the inner flange and the outer flange.

[0047] The application further provides a transmission connection assembly, which includes any one of the annular diaphragm plates described above and any one of the flanges described above.

[0048] The radial inner edge and the radial outer edge of the membrane disc body are formed with the membrane disc corrugated skirt structure, the radial inner edge of the membrane disc body is formed with a membrane disc corrugated inner skirt structure, and the radial outer edge of the membrane disc body is formed with a membrane disc corrugated outer skirt structure;

[0049] The flange comprises an inner flange and an outer flange; the radial inner edge of the shaft extension body of the inner flange is formed with the shaft extension corrugated skirt structure, which is a shaft extension corrugated inner skirt structure; and the radial outer edge of the shaft extension body of the outer flange is formed with the shaft extension corrugated skirt structure, which is a shaft extension corrugated outer skirt structure;

[0050] The membrane disc corrugated inner skirt structure and the shaft extension corrugated inner skirt structure are matched, the membrane disc corrugated outer skirt structure and the shaft extension corrugated outer skirt structure are matched, and then the annular membrane disc can be connected with the inner flange and the outer flange.

[0051] Compared with the prior art, the beneficial effects of the present application mainly lie in:

[0052] The annular membrane disc is formed with a membrane disc corrugated skirt structure, the membrane disc corrugated skirt structure comprises a membrane disc skirt convex part and a membrane disc skirt concave part, the membrane disc skirt convex part and the membrane disc skirt concave part are alternately arranged along the circumference of the membrane disc body; the transmission object and / or the driven object can be transmissionally connected with the annular membrane disc through the membrane disc corrugated skirt structure; stress concentration is not generated at the connection, the safety, the power density and the service life of the annular membrane disc are greatly improved; when the membrane disc and the flange are connected through the corrugated skirt structure, the maximum stress at the connection of the membrane disc and the flange can be reduced to about 1 / 3 of the maximum stress at the connection of the membrane disc and the flange when the membrane disc and the flange are connected through the pin hole and the bolt with a pin; it is detachable and the maintenance cost is low; the problems of local stress concentration and reduction of the bearing capacity of the membrane disc when the membrane disc and the flange are connected through the pin hole and the bolt with a pin in the prior art are solved, and the problems of being unable to be disassembled and maintained when the membrane disc and the flange are connected through the welding method in the prior art and the low material strength at the welding seam when the membrane disc is made of high-strength material are solved. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0054] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the conditions that can be implemented by the application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the application, should still fall within the scope covered by the disclosed technology.

[0055] Figure 1a 、 Figure 1b and Figure 1c Embodiment structure diagram of the annular membrane disc provided by the application, when the membrane disc corrugated skirt structure is formed at the radial inner edge of the membrane disc, and the membrane disc pin hole is formed at the radial outer edge of the membrane disc;

[0056] Figure 1d is Figure 1c the front view of the inner cylindrical development surface in

[0057] Figure 1e is the enlarged view of the annular membrane disc provided by the application at the radial inner edge of the membrane disc;

[0058] Figure 2a and Figure 2b Embodiment structure diagram of the annular membrane disc provided by the application, when the membrane disc corrugated skirt structure is formed at the radial inner edge and the radial outer edge of the membrane disc;

[0059] Figure 2c is Figure 2b the enlarged view of A in

[0060] Figure 3 is the enlarged view of the annular membrane disc provided by the application at the radial outer edge of the membrane disc;

[0061] Figure 4a Embodiment structure diagram of the inner flange provided by the application;

[0062] Figure 4b is Figure 4a the enlarged view of B in

[0063] Figure 5 Embodiment structure diagram of the compression ring provided by the application;

[0064] Figure 6a Embodiment assembly structure diagram of the compression bolt, compression ring, annular membrane disc and inner flange provided by the application;

[0065] Figure 6b Embodiment cross-sectional structure diagram of the compression bolt, compression ring, annular membrane disc and inner flange provided by the application;

[0066] Figure 6c andFigure 6d An exploded structural schematic view of the embodiments of the compression bolt, compression ring, annular membrane disc and inner flange provided by the present application;

[0067] Figure 7 A finite element analysis nephogram of the annular membrane disc provided by the present application when the membrane disc corrugated skirt structure is formed at the radial inner edge of the membrane disc and the membrane disc pin hole is formed at the radial outer edge of the membrane disc;

[0068] Figure 8a A finite element analysis nephogram of the annular membrane disc provided by the present application when the membrane disc pin hole is formed at both the radial inner edge and the radial outer edge of the membrane disc;

[0069] Figure 8b A finite element analysis nephogram of the annular membrane disc provided by the present application in X direction when the membrane disc pin hole is formed at both the radial inner edge and the radial outer edge of the membrane disc;

[0070] Figure 8c A finite element analysis nephogram of the annular membrane disc provided by the present application at the radial inner edge of the membrane disc when the membrane disc pin hole is formed at both the radial inner edge and the radial outer edge of the membrane disc;

[0071] In the figure:

[0072] 1-annular membrane disc; 11-membrane disc body; 111-first axial side; 12-membrane disc radial inner edge; 13-membrane disc radial outer edge; 131-positioning hole; 132-membrane disc pin hole; 14-membrane disc corrugated inner skirt structure; 141-first inner corrugated section; 142-second inner corrugated section; 15-membrane disc corrugated outer skirt structure; 151-first outer corrugated section; 152-second outer corrugated section; 161-membrane disc skirt convex portion circumferential contour line; 162-membrane disc skirt concave portion circumferential contour line; 163-membrane disc skirt convex portion; 164-membrane disc skirt concave portion; 165-convex surface; 166-concave surface; 171-inner cylindrical surface; 172-inner cylindrical developed surface; 181-plane A; 182-plane B; 183-center surface of the membrane disc body;

[0073] 3-inner flange; 31-inner flange disc; 32-axial extension body of the inner flange; 33-axial extension corrugated inner skirt structure; 341-axial extension convex portion; 342-axial extension concave portion; 35-compression thread;

[0074] 41-compression ring; 42-compression bolt; 43-membrane disc set. DETAILED DESCRIPTION

[0075] The following will be described by specific embodiments of the present application, familiar with the skilled person can easily understand the advantages and effects of the present application from the disclosure of the present application, it is clear that the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of the present application.

[0076] The terminology used in the embodiments of the present application is only for the purpose of describing specific embodiments, and is not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Multiple" generally includes at least two, but does not exclude the case of including at least one.

[0077] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0078] It should also be noted that the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the goods or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such goods or system. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the goods or system including the element.

[0079] In the prior art, when connecting the membrane disc and the flange disc by pin hole and pin bolt, stress concentration phenomenon is easy to occur near the pin hole, which reduces the safety of the membrane disc coupling and the carrying capacity per unit volume; when connecting the membrane disc and the flange disc by welding, the welded structure cannot be disassembled, and if individual parts have problems, only the whole can be scrapped; the membrane disc made of high-strength material is often difficult to weld, and after welding, it is either cracked or the material strength at the weld is greatly reduced;

[0080] This invention creatively provides an annular diaphragm disk, which includes a diaphragm disk body. A corrugated skirt structure is formed at one radial end of the diaphragm disk body. The corrugated skirt structure includes a convex portion and a concave portion, which are alternately arranged along the circumference of the diaphragm disk body. The transmission object and / or the object being transmitted can be connected to the annular diaphragm disk via the corrugated skirt structure. No stress concentration occurs at the connection point, greatly improving the safety, power density, and lifespan of the annular diaphragm disk. It is detachable and has low maintenance costs.

[0081] Example 1

[0082] like Figures 1a to 3 As shown, this embodiment provides an annular diaphragm disk 1, which includes a diaphragm disk body 11. A corrugated skirt structure is formed at one radial end of the diaphragm disk body 11. The corrugated skirt structure is used for transmission connection with the transmission object and / or the transmitted object. The corrugated skirt structure is formed by calendering and stretching at one radial end of the diaphragm disk body 11.

[0083] The corrugated skirt structure of the membrane disk is alternately formed with membrane disk skirt protrusions 163 and membrane disk skirt recesses 164 along the circumference of the membrane disk body 11. The membrane disk skirt protrusions 163 protrudes to one axial side of the membrane disk body 11, and the membrane disk skirt recesses 164 are recessed to the other axial side of the membrane disk body 11. Specifically, there are multiple membrane disk skirt protrusions 163 and membrane disk skirt recesses 164. Multiple membrane disk skirt protrusions 163 are spaced apart along the circumference of the membrane disk body 11, and multiple membrane disk skirt recesses 164 are spaced apart along the circumference of the membrane disk body 11. Multiple membrane disk skirt recesses 164 and multiple membrane disk skirt protrusions 163 are arranged alternately along the circumference of the membrane disk body 11, and the membrane disk skirt protrusions 163 and adjacent membrane disk skirt recesses 164 are tangentially connected.

[0084] The height H of the protrusion 163 of the membrane disc skirt and the depth h of the concave part 164 of the membrane disc skirt gradually decrease along the radial direction of the membrane disc body 11 towards the membrane disc body 11; wherein, the height H of the protrusion 163 of the membrane disc skirt is the distance between any point on the protrusion 163 of the membrane disc skirt and the center surface 183 of the membrane disc body, and the depth h of the concave part 164 of the membrane disc skirt is the distance between any point on the concave part 164 of the membrane disc skirt and the center surface 183 of the membrane disc body;

[0085] Preferably, on either axial side of the membrane disc body 11, the convex surface 165 of the membrane disc skirt convex portion 163 and the concave surface 166 of the membrane disc skirt concave portion 164 gradually and smoothly transition to the corresponding axial side surface of the membrane disc body 11 along the radial direction of the membrane disc body 11; that is, the membrane disc skirt convex portion 163 and the membrane disc skirt concave portion 164 gradually and smoothly extend to the membrane disc body 11 along the radial direction of the membrane disc body 11; specifically, the axial direction of the membrane disc body 11 includes a first axial side a and a second axial side a' oppositely arranged, and the axial side surface of the membrane disc body 11 includes a first axial side surface 111 corresponding to the first axial side a and a second axial side surface corresponding to the second axial side a'; on the first axial side a, the convex surface 165 of the membrane disc skirt convex portion 163 gradually and smoothly transitions to the first axial side surface 111 along the radial direction of the membrane disc body 11, and the concave surface 166 of the membrane disc skirt concave portion 164 gradually and smoothly transitions to the first axial side surface 111 along the radial direction of the membrane disc body 11; on the second axial side a', the convex surface of the membrane disc skirt convex portion 163 gradually and smoothly transitions to the second axial side surface along the radial direction of the membrane disc body 11, and the concave surface 166 of the membrane disc skirt concave portion 164 gradually and smoothly transitions to the second axial side surface along the radial direction of the membrane disc body 11.

[0086] It should be noted that the membrane disc corrugated skirt structure is a detachable connection structure for transmission connection, when the annular membrane disc 1 is in transmission connection with a transmission object, the movement of the transmission object can be transmitted to the annular membrane disc 1; when the annular membrane disc 1 is in transmission connection with a driven object, the annular membrane disc 1 can transmit movement to the driven object; during transmission, the protrusion of the membrane disc body 11 can be elastically deformed; the membrane disc corrugated skirt structure is different from the common fixed connection structures such as welding, bolt connection, riveting, gluing and pin connection;

[0087] Specifically, the membrane disc body 11 is a flat plate as a whole, or the membrane disc body 11 includes an inner ring segment, a protrusion and an outer ring segment arranged in sequence from inside to outside along the radial direction of the membrane disc body 11 and connected, the protrusion is an annular structure, the inner ring segment, the protrusion and the outer ring segment are coaxially arranged, and the protrusion protrudes towards one end of the axial direction of the membrane disc body 11; the protrusion has elasticity, and when the outer ring segment and the inner ring segment are deflected, the protrusion deforms to adapt to the positional change of the relative deflection of the outer ring segment and the inner ring segment; the protrusion adopts a pre-stretching structure, which can allow a larger angle difference and provide radial rigidity when the outer ring segment and the inner ring segment are all fixed; the protrusion is tangent to the outer ring segment and the inner ring segment, and the protrusion is a circular arc surface, a spline curve surface or a cosine curve surface; preferably, the thicknesses of the protrusion, the outer ring segment and the inner ring segment are equal, the protrusion, the outer ring segment and the inner ring segment are integrally formed, and the inner ring segment and the outer ring segment are in the same plane.

[0088] The specific structure of the membrane disc corrugated skirt structure can be viewed from the circumferential direction and the radial direction of the membrane disc body 11:

[0089] From the circumferential direction of the membrane disc body 11, on the circumferential section of the membrane disc corrugated skirt structure, the membrane disc skirt convex portion 163 is formed with a membrane disc skirt convex portion circumferential contour line 161, and the membrane disc skirt concave portion 164 is formed with a membrane disc skirt concave portion circumferential contour line 162;

[0090] The specific structure of the membrane disc skirt convex portion circumferential contour line 161 and the membrane disc skirt concave portion circumferential contour line 162 includes the following two cases, and in actual application, one of the two cases can be selected:

[0091] ① In the case where the circumferential section of the membrane disc corrugated skirt structure is expanded into a plane, the membrane disc skirt convex portion circumferential contour line 161 and the membrane disc skirt concave portion circumferential contour line 162 are both circular arc lines;

[0092] ② In the case where the circumferential section of the membrane disc corrugated skirt structure is expanded into a plane, one membrane disc skirt convex portion circumferential contour line 161 and an adjacent membrane disc skirt concave portion circumferential contour line 162 constitute a periodic sinusoidal curve;

[0093] Wherein, the circumferential section of the membrane disc corrugated skirt structure is the circumferential section formed by cutting the cylindrical surface coaxially arranged with the membrane disc body 11;

[0094] From the radial direction of the membrane disc body 11, the membrane disc corrugated skirt structure includes two different corrugated sections in the radial direction of the membrane disc body 11, which are a first corrugated section and a second corrugated section, and the first corrugated section and the second corrugated section are integrally formed; wherein, the first corrugated section is arranged away from the membrane disc body 11, and the second corrugated section is arranged close to the membrane disc body 11;

[0095] In the direction from the first corrugated section to the second corrugated section, the corrugated height of the first corrugated section linearly decreases, and the second corrugated section is in a circular arc shape; wherein, in the first corrugated section, the corrugated height of the membrane disc convex portion 163 is the convex height H of the membrane disc convex portion 163, and the corrugated height of the membrane disc concave portion 164 is the concave depth h of the membrane disc concave portion 164;

[0096] In the radial direction of the membrane disc body 11, the second corrugated section and the first corrugated section are tangentially connected, and the second corrugated section and the membrane disc body 11 are tangentially connected.

[0097] The parameters related to the specific structure of the membrane disc skirt convex portion 163 and the membrane disc skirt concave portion 164 include α, β, δ and W11 / W10, α is a key parameter, which directly affects the service life and connection firmness of the annular membrane disc 1, β, δ and W11 / W10 affect the swing flexibility of the annular membrane disc 1 and the stress during forming; specifically:

[0098] ① The included angle between the tangent plane A181 where the tangent connection of the convex part 163 of the membrane disc skirt and the adjacent concave part 164 of the membrane disc skirt and the center plane 183 of the membrane disc body is α, and α satisfies 20°≤α≤35° at the radial end of the membrane disc body; reducing α can reduce the residual elongation rate generated at the radial edge of the annular membrane disc 1, and can avoid damage to the annular membrane disc 1 during stretching and use; increasing α can make the axial locking force required for clamping the annular membrane disc 1 smaller under the action of the same torque or radial force, and can make the annular membrane disc 1 firmly connected with the flange and the compression ring 41;

[0099] ② The included angle between the tangent plane B182 of the outer contour peak line of the convex part 163 of the membrane disc skirt and the center plane 183 of the membrane disc body is β, and β satisfies 4.5°≤β≤12°; increasing β can reduce the radial width of the corrugated skirt structure of the membrane disc, can increase the radial width of the annular membrane disc 1 between the inner flange 3 and the outer flange when the annular membrane disc 1 is connected with the inner flange 3 and the outer flange, and can improve the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange; reducing β can increase the circular arc radius of the second corrugated section, which can reduce the stress during forming of the annular membrane disc 1 on the one hand, and can expand the diameter range of the tool used for machining the flange or the compression ring 41 on the other hand (when the annular membrane disc 1 needs to be connected with the flange and the compression ring 41), thereby improving the efficiency of machining the flange or the compression ring 41; wherein, along the axial direction of the membrane disc body 11, from the center plane 183 of the membrane disc body to the convex part 163 of the membrane disc skirt, the outer contour peak line of the convex part 163 of the membrane disc skirt is arranged away from the center plane 183 of the membrane disc body, and the inner contour peak line of the convex part 163 of the membrane disc skirt is arranged close to the center plane 183 of the membrane disc body;

[0100] ③ The included angle between the tangent plane E of the outer contour valley line of the concave part of the membrane disc skirt and the center plane 183 of the membrane disc body is δ, and δ satisfies 4.5°≤δ≤12°; increasing δ can reduce the radial width of the corrugated skirt structure of the membrane disc, can increase the radial width of the annular membrane disc 1 between the inner flange 3 and the outer flange when the annular membrane disc 1 is connected with the inner flange 3 and the outer flange, and can improve the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange; reducing δ can increase the circular arc radius of the second corrugated section, which can reduce the stress during forming of the annular membrane disc 1 on the one hand, and can expand the diameter range of the tool used for machining the flange or the compression ring 41 on the other hand (when the annular membrane disc 1 needs to be connected with the flange and the compression ring 41), thereby improving the efficiency of machining the flange or the compression ring 41; wherein, along the axial direction of the membrane disc body 11, from the center plane 183 of the membrane disc body to the concave part 164 of the membrane disc skirt, the outer contour valley line of the concave part 164 of the membrane disc skirt is arranged away from the center plane 183 of the membrane disc body, and the inner contour valley line of the concave part 164 of the membrane disc skirt is arranged close to the center plane 183 of the membrane disc body;

[0101] The radial width of the membrane disc corrugated skirt structure along the membrane disc body 11 is W10, the radial width of the first corrugated section along the membrane disc body 11 is W11, and W10 and W11 satisfy: 60%≤W11 / W10≤80%. Reducing W11 / W10 can increase the radius of the circular arc of the second corrugated section, which can reduce the stress of the annular membrane disc 1 during forming, and on the other hand (when the annular membrane disc 1 needs to be connected with the flange and the compression ring 41), the diameter range of the tool used for machining the flange or the compression ring 41 is expanded, and the efficiency of machining the flange or the compression ring 41 is improved. Increasing W11 / W10 can reduce the radial width of the membrane disc corrugated skirt structure, and can improve the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange.

[0102] In addition, when α satisfies: 20°≤α≤35°, β satisfies: 4.5°≤β≤12° and / or δ satisfies: 4.5°≤δ≤12° and / or W10 / W11 satisfies: 60%≤W11 / W10≤80%, the annular membrane disc 1 can be prevented from being damaged during stretching and use, the annular membrane disc 1 can be firmly connected with the flange and the compression ring 41, the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange can be improved, and the stress of the annular membrane disc 1 during forming can be reduced.

[0103] In addition, the membrane disc body 11 includes a membrane disc radial inner edge 12 and a membrane disc radial outer edge 13 arranged opposite along the radial direction of the membrane disc body 11, and the membrane disc corrugated skirt structure is formed on the membrane disc radial inner edge 12 and / or the membrane disc radial outer edge 13. That is, only the membrane disc radial inner edge 12 is provided with the membrane disc corrugated skirt structure, or only the membrane disc radial outer edge 13 is provided with the membrane disc corrugated skirt structure, or both the membrane disc radial inner edge 12 and the membrane disc radial outer edge 13 are provided with the membrane disc corrugated skirt structure.

[0104] In summary, the embodiment provides the overall layout and specific structure of the membrane disc corrugated skirt structure, and related parameters of the specific structure. The transmission connection is realized through the membrane disc corrugated skirt structure, no stress concentration is generated at the connection, the safety, power density and service life of the annular membrane disc 1 are greatly improved, the annular membrane disc 1 is detachable and has low maintenance cost, the stress of the annular membrane disc 1 during forming can be reduced, the service life of the annular membrane disc 1 can be prolonged, and the annular membrane disc 1 can be firmly connected.

[0105] Embodiment 2

[0106] On the basis of embodiment 1, only the membrane disc radial inner edge 12 is provided with the membrane disc corrugated skirt structure, and the membrane disc corrugated skirt structure is a membrane disc corrugated inner skirt structure 14. The first corrugated section of the membrane disc corrugated inner skirt structure 14 is a first inner corrugated section 141, and the second corrugated section of the membrane disc corrugated inner skirt structure 14 is a second inner corrugated section 142.

[0107] The first inner corrugated section 141, the second inner corrugated section 142 and the membrane disc body 11 are sequentially arranged from inside to outside along the radial direction of the membrane disc body 11, and the second inner corrugated section 142 is tangentially connected with the first inner corrugated section 141 and the membrane disc body 11; the corrugated height of the first inner corrugated section 141 linearly decreases from inside to outside along the radial direction of the membrane disc body 11, and the second inner corrugated section 142 is in a circular arc shape from inside to outside along the radial direction of the membrane disc body 11.

[0108] The membrane disc corrugated inner skirt structure 14 is tangential to the inner cylindrical surface 171 coaxially arranged with the membrane disc body 11.

[0109] The intersection line of one membrane disc skirt convex part 163 and the inner cylindrical surface 171 is a membrane disc skirt convex part circumferential contour line 161 on the development plane of the inner cylindrical surface 171, and the intersection line of one membrane disc skirt concave part 164 and the inner cylindrical surface 171 is a membrane disc skirt concave part circumferential contour line 162 on the development plane of the inner cylindrical surface 171.

[0110] The membrane disc skirt convex part circumferential contour line 161 and the membrane disc skirt concave part circumferential contour line 162 are both in a circular arc shape, or one membrane disc skirt concave part circumferential contour line 162 and an adjacent membrane disc skirt convex part circumferential contour line 161 form a periodic sinusoidal curve.

[0111] The development plane of the inner cylindrical surface 171 is referred to as an inner cylindrical development surface 172.

[0112] In summary, the embodiment provides a specific structure of the membrane disc corrugated inner skirt structure 14, the first inner corrugated section 141, the second inner corrugated section 142 and the membrane disc body 11 gradually extend gently and continuously from inside to outside along the radial direction of the membrane disc body 11; the stress during forming of the annular membrane disc 1 is reduced, and the annular membrane disc 1 has a certain elasticity, has a certain swing flexibility during use, and prolongs the service life of the annular membrane disc 1.

[0113] The finite element analysis is performed on the membrane disc wave-shaped inner skirt structure 14 formed on the radial inner edge 12 of the membrane disc body 11 and the membrane disc pin hole 132 formed on the radial outer edge 13 of the membrane disc body 11; the geometric model is set as follows: the inner diameter of the membrane disc is 39 mm, the radial width of the membrane disc wave-shaped inner skirt structure 14 is 1.85 mm, the membrane disc skirt convex part 163 and the membrane disc skirt concave part 164 are both provided with 40, the thickness of the membrane disc body 11 is 0.1 mm, α = 26.552°, β = 6.558°, W11 / W10 = 70%, the round corner radius of the membrane disc skirt convex part 163 is 4.86 mm, the innermost circular arc radius of the first wave segment is 1.7131 mm (i.e. when the circumferential profile line 161 of the membrane disc skirt convex part and the circumferential profile line 162 of the membrane disc skirt concave part are both circular arc lines and the radius of the circular arc line is 1.7131 mm, the circumferential profile of the innermost side of the first wave segment is unfolded into a plane), the extension rate of the material caused by the stamping of the membrane disc wave-shaped inner skirt structure 14 is 4.7%, which is less than half of the extension rate of the annular membrane disc 1; the simulation conditions are set as follows: the deflection angle of the inner ring segment relative to the outer ring segment is 0.74°, the torque of 56 Nm and the radial force of 1520 N are applied between the inner ring segment and the outer ring segment; the radial force is consistent with the relative inclination direction of the inner ring segment and the outer ring segment, i.e. perpendicular to the common normal line of the axis of the inner ring segment and the outer ring segment;

[0114] Figure 7 The cloud diagram obtained by the mechanical finite element analysis is as follows: Figure 7 It can be seen that the maximum tensile stress of the membrane disc body 11 is 337.4 Mpa and the maximum stress at the membrane disc wave-shaped inner skirt structure 14 is 298.4 Mpa.

[0115] The finite element analysis is performed on the membrane disc pin hole 132 formed on the radial inner edge 12 and the radial outer edge 13 of the membrane disc body 11; the geometric model is set as follows: the inner diameter of the membrane disc body 11 is 44.7 mm, the thickness of the membrane disc body 11 is 0.1 mm; the inner diameter of the flange disc connected with the radial inner edge 12 of the membrane disc body 11 is 32 mm, the flange disc is formed with 10 flange disc pin holes which are uniformly distributed; the diameters of the membrane disc pin hole 132 and the flange disc pin hole are both 4 mm; the simulation conditions are set as follows: the deflection angle of the inner ring segment relative to the outer ring segment is 0.74°, the torque of 56 Nm and the radial force of 1520 N are applied between the inner ring segment and the outer ring segment; the radial force is consistent with the relative inclination direction of the inner ring segment and the outer ring segment, i.e. perpendicular to the common normal line of the axis of the inner ring segment and the outer ring segment;

[0116] Figure 8a Figure 8b and Figure 8c The cloud diagram obtained by the mechanical finite element analysis is as follows: Figure 8a ​It can be seen that the maximum tensile stress of the diaphragm disc body 11 is 1070 MPa, the maximum tensile stress of the diaphragm disc body 11 in the X direction is 730.0 MPa, and the maximum stress at the radial inner edge 12 of the diaphragm disc body 11 is 1070 MPa;

[0117] Therefore, it can be seen that the maximum stress of the radial inner edge 12 of the diaphragm disc body 11 when forming the diaphragm disc corrugated inner skirt structure 14 is obviously smaller than the maximum stress of the radial inner edge 12 of the diaphragm disc body 11 when forming the diaphragm disc pin hole 132, and the stress is reduced from 1070 MPa to 298.4 MPa, which is less than 28% of the original, greatly improving the stress characteristics of the diaphragm disc body 11, and the expected cycle life is improved from tens of thousands of times to infinite cycle life, meeting the design and use requirements of the speed reducer (especially the speed reducer used by the robot).

[0118] Embodiment 3

[0119] On the basis of embodiment 1, only the radial outer edge 13 of the diaphragm disc forms a diaphragm disc corrugated skirt structure, which is a diaphragm disc corrugated outer skirt structure 15, the first corrugated section of the diaphragm disc corrugated outer skirt structure 15 is a first outer corrugated section 151, and the second corrugated section of the diaphragm disc corrugated outer skirt structure 15 is a second outer corrugated section 152;

[0120] From the outside to the inside along the radial direction of the diaphragm disc body 11, the first outer corrugated section 151, the second outer corrugated section 152 and the diaphragm disc body 11 are sequentially arranged, and the second outer corrugated section 152 is tangentially connected with the first outer corrugated section 151 and the diaphragm disc body 11; the corrugated height of the first outer corrugated section 151 linearly decreases from the outside to the inside along the radial direction of the diaphragm disc body 11, and the second outer corrugated section 152 is in a circular arc shape along the radial direction of the diaphragm disc body 11 from the inside to the outside.

[0121] The diaphragm disc corrugated outer skirt structure 15 is tangential to the outer cylindrical surface coaxially arranged with the diaphragm disc body 11;

[0122] The intersection line of one diaphragm disc skirt convex part 163 and the outer cylindrical surface is a diaphragm disc skirt convex part circumferential contour line 161 on the development plane of the outer cylindrical surface, and the intersection line of one diaphragm disc skirt concave part 164 and the outer cylindrical surface is a diaphragm disc skirt concave part circumferential contour line 162 on the development plane of the outer cylindrical surface;

[0123] The diaphragm disc skirt convex part circumferential contour line 161 and the diaphragm disc skirt concave part circumferential contour line 162 are both in a circular arc shape, or one diaphragm disc skirt concave part circumferential contour line 162 and an adjacent diaphragm disc skirt convex part circumferential contour line 161 form a periodic sinusoidal curve;

[0124] The development plane of the outer cylindrical surface is referred to as the outer cylindrical development surface.

[0125] In summary, the embodiment gives the specific structure of the membrane disc corrugated outer skirt structure 15, the first outer corrugated section 151, the second outer corrugated section 152 and the membrane disc main body 11 gradually and continuously extend from outside to inside along the radial direction of the membrane disc main body 11; the stress of the annular membrane disc 1 during forming is reduced, at the same time, the annular membrane disc 1 has a certain elasticity, has a certain swing flexibility during use, and prolongs the service life of the annular membrane disc 1.

[0126] Embodiment 4

[0127] On the basis of embodiment 1, embodiment 2 and embodiment 3, the membrane disc radial inner edge 12 and the radial outer edge are both formed with a membrane disc corrugated skirt structure; the membrane disc corrugated skirt structure formed on the membrane disc radial inner edge 12 is a membrane disc corrugated inner skirt structure 14, the first corrugated section of the membrane disc corrugated inner skirt structure 14 is a first inner corrugated section 141, and the second corrugated section of the membrane disc corrugated inner skirt structure 14 is a second inner corrugated section 142; along the radial direction of the membrane disc main body 11, the first inner corrugated section 141, the second inner corrugated section 142 and the membrane disc main body 11 are sequentially arranged, and the second inner corrugated section 142 is tangentially connected with the first inner corrugated section 141 and the membrane disc main body 11; the corrugated height of the first inner corrugated section 141 linearly decreases from inside to outside along the radial direction of the membrane disc main body 11.

[0128] The membrane disc corrugated skirt structure formed on the membrane disc radial outer edge 13 is a membrane disc corrugated outer skirt structure 15, the first corrugated section of the membrane disc corrugated outer skirt structure 15 is a first outer corrugated section 151, and the second corrugated section of the membrane disc corrugated outer skirt structure 15 is a second outer corrugated section 152; along the radial direction of the membrane disc main body 11, the first outer corrugated section 151, the second outer corrugated section 152 and the membrane disc main body 11 are sequentially arranged, and the second outer corrugated section 152 is tangentially connected with the first outer corrugated section 151 and the membrane disc main body 11; the corrugated height of the first outer corrugated section 151 linearly decreases from outside to inside along the radial direction of the membrane disc main body 11.

[0129] In summary, the embodiment gives the specific structure of the membrane disc corrugated inner skirt structure 14 and the membrane disc corrugated outer skirt structure 15, the first inner corrugated section 141, the second inner corrugated section 142 and the membrane disc main body 11 gradually and continuously extend from inside to outside along the radial direction of the membrane disc main body 11, and the first outer corrugated section 151, the second outer corrugated section 152 and the membrane disc main body 11 gradually and continuously extend from outside to inside along the radial direction of the membrane disc main body 11; the stress of the annular membrane disc 1 during forming is reduced, at the same time, the annular membrane disc 1 has a certain elasticity, has a certain swing flexibility during use, and prolongs the service life of the annular membrane disc 1.

[0130] Embodiment 5

[0131] AsFigure 4a and Figure 4b As shown, this embodiment provides a flange, including a flange plate and a shaft extension, the shaft extension being disposed at one axial end of the flange plate; the shaft extension includes a shaft extension body, the shaft extension body forming a shaft extension corrugated skirt structure; the shaft extension corrugated skirt structure is located away from the flange plate and at one radial end of the shaft extension body; the shaft extension corrugated skirt structure has a structure that cooperates with the membrane disc corrugated skirt structure described in any one of embodiments 1 to 4;

[0132] The corrugated skirt structure of the diaphragm disc and the corrugated skirt structure of the shaft extension can be combined to achieve the connection between the annular diaphragm disc 1 and the flange.

[0133] Example 6

[0134] like Figure 4a and Figure 4b As shown, this embodiment provides a flange, including a flange plate and a shaft extension, the shaft extension being disposed at one axial end of the flange plate; the shaft extension includes a shaft extension body, the shaft extension body forming a shaft extension corrugated skirt structure; the shaft extension corrugated skirt structure is located away from the flange plate and at one radial end of the shaft extension body; the shaft extension corrugated skirt structure is used for transmission connection with a transmission object and / or a transmitted object, the shaft extension corrugated skirt structure being formed from one radial end of the shaft extension body by cutting, pressure processing or electrical discharge machining;

[0135] The corrugated skirt structure of the shaft extension has alternating shaft extension protrusions 341 and shaft extension recesses 342 along the circumference of the shaft extension body; wherein, the shaft extension protrusions 341 protrude to one axial side of the shaft extension body, and the shaft extension recesses 342 are recessed to the other axial side of the shaft extension body; there are multiple shaft extension protrusions 341 and shaft extension recesses 342, and the multiple shaft extension recesses 342 and multiple shaft extension protrusions 341 are arranged alternately along the circumference of the shaft extension body;

[0136] The shaft extension protrusion 341 and the shaft extension recess 342 gradually and smoothly transition to the shaft extension body along the radial direction of the shaft extension body.

[0137] The specific structure of the corrugated skirt structure of the shaft extension can be viewed from two aspects: the circumferential and radial directions of the shaft extension body.

[0138] From the circumferential perspective of the shaft extension body, on the longitudinal section along the circumferential direction of the shaft extension corrugated skirt structure, the shaft extension protrusion 341 forms a circumferential contour line of the shaft extension protrusion, and the shaft extension recess 342 forms a circumferential contour line of the shaft extension recess.

[0139] The specific structures of the circumferential contour lines of the shaft extension protrusion and the circumferential contour lines of the shaft extension recess include the following two cases. In practical applications, either of these two cases can be selected:

[0140] ①When the circumferential section of the axially extended corrugated skirt structure is unfolded into a plane, the circumferential contour lines of the axially extended protrusion and the circumferential contour lines of the axially extended concave part are both arc lines.

[0141] ②In the case that the circumferential section of the axial stretch corrugated skirt structure is unfolded into a plane, one axial stretch convex portion circumferential contour line and an adjacent axial stretch concave portion circumferential contour line form a periodic sinusoidal curve;

[0142] Wherein, the circumferential section of the axial stretch corrugated skirt structure is a circumferential section formed by cutting the axial stretch corrugated skirt structure with a cylindrical surface coaxially arranged with the axial stretch main body;

[0143] From the circumferential direction of the axial stretch main body, the axial stretch corrugated skirt structure includes two different corrugated segments in the radial direction of the axial stretch main body, which are a third corrugated segment and a fourth corrugated segment, and the third corrugated segment and the fourth corrugated segment are integrally formed; wherein, the third corrugated segment is arranged away from the axial stretch main body, and the fourth corrugated segment is arranged close to the axial stretch main body;

[0144] In the direction from the third corrugated segment to the fourth corrugated segment, the corrugated height of the third corrugated segment linearly decreases, and the fourth corrugated segment is in a circular arc shape;

[0145] In the radial direction of the axial stretch main body, the third corrugated segment and the fourth corrugated segment are tangentially connected, and the third corrugated segment and the axial stretch main body are tangentially connected.

[0146] The parameters related to the specific structure of the axial stretch convex portion 341 and the axial stretch concave portion 342 include γ, θ and W21 / W20, γ is a key parameter, which directly affects the firmness of the connection between the axial stretch main body and the annular diaphragm 1; specifically:

[0147] ①The axial stretch convex portion 341 and the adjacent axial stretch concave portion 342 are tangentially connected, and the included angle between the tangent plane C where the two are tangentially connected and the central plane of the axial stretch main body is γ, which satisfies: 20°≤γ≤35°; reducing γ can reduce the residual elongation rate generated at the radial edge of the annular diaphragm cooperating with the axial stretch main body, and can avoid damage to the annular diaphragm 1 cooperating with the axial stretch main body during stretching and use; increasing γ can make the axial locking force required for clamping the annular diaphragm 1 smaller under the action of the same torque or radial force, and can make the annular diaphragm 1 firmly connected with the flange and the compression ring 41;

[0148] The angle between the tangent plane D of the outer contour peak line of the shaft extension protrusion 341 and the center surface of the shaft extension body is θ, and θ satisfies: 4.5°≤θ≤12°; increasing θ can reduce the radial width of the shaft extension corrugated skirt structure, can increase the radial width of the annular membrane disc 1 between the inner flange 3 and the outer flange when the annular membrane disc 1 is connected with the inner flange 3 and the outer flange, and can improve the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange; reducing β can increase the radius of the circular arc of the second four corrugated segments, which can reduce the stress of the annular membrane disc 1 during forming and can expand the diameter range of the tool used for machining the flange or the compression ring 41, thereby improving the machining efficiency of the flange or the compression ring 41; wherein, along the axial direction of the shaft extension body, the outer contour peak line of the shaft extension protrusion 341 is arranged away from the center surface of the shaft extension body, and the inner contour peak line of the shaft extension recess 342 is arranged close to the center surface of the shaft extension body;

[0149] The radial width of the shaft extension corrugated skirt structure along the shaft extension body is W20, and the radial width of the third corrugated segment along the shaft extension body is W21, and W20 and W21 satisfy: 60%≤W21 / W20≤80%; reducing W21 / W20 can increase the radius of the circular arc of the fourth corrugated segment, which can reduce the stress of the annular membrane disc 1 during forming and can expand the diameter range of the tool used for machining the flange or the compression ring 41, thereby improving the machining efficiency of the flange or the compression ring 41; increasing W21 / W20 can reduce the radial width of the shaft extension corrugated skirt structure, and can improve the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange;

[0150] In addition, when γ satisfies: 20°≤γ≤35°, θ satisfies: 4.5°≤θ≤12°, and / or W20 / W21 satisfies: 60%≤W21 / W20≤80%, the annular membrane disc 1 cooperating with the shaft extension body can be prevented from being damaged during stretching and use, the annular membrane disc 1 can be firmly connected with the flange and the compression ring 41, and the swing flexibility of the annular membrane disc 1 between the inner flange 3 and the outer flange can be improved.

[0151] The shaft extension body includes a shaft extension radial inner edge and a shaft extension radial outer edge, and the shaft extension radial inner edge and / or the shaft extension radial outer edge is / are formed with the shaft extension corrugated skirt structure; that is, only the shaft extension radial inner edge is formed with the shaft extension corrugated skirt structure, or only the shaft extension radial outer edge is formed with the shaft extension corrugated skirt structure, or both the shaft extension radial inner edge and the shaft extension radial outer edge are formed with the shaft extension corrugated skirt structure.

[0152] In summary, the embodiment gives the overall layout and specific structure of the shaft extension corrugated skirt structure, and gives the parameters related to the specific structure. The shaft extension corrugated skirt structure realizes the transmission connection, no stress concentration is generated at the connection, the safety, power density and service life of the shaft extension main body are greatly improved; it is detachable, the maintenance cost is low, the stress of the annular membrane disc 1 matched with the shaft extension main body can be reduced, the service life of the annular membrane disc 1 matched with the shaft extension main body can be prolonged, and the shaft extension main body and the annular membrane disc 1 can be firmly connected.

[0153] Embodiment 7

[0154] On the basis of embodiment 5 or 6, only the shaft extension radial inner edge is formed with the shaft extension corrugated skirt structure, which is a shaft extension corrugated inner skirt structure 33; the third corrugated section of the shaft extension corrugated inner skirt structure 33 is a third inner corrugated section, and the fourth corrugated section of the shaft extension corrugated inner skirt structure 33 is a fourth inner corrugated section;

[0155] From the inside to the outside along the radial direction of the shaft extension main body, the third inner corrugated section, the fourth inner corrugated section and the shaft extension main body are sequentially arranged; the corrugated height of the third inner corrugated section linearly decreases from the inside to the outside along the radial direction of the shaft extension main body.

[0156] In summary, the embodiment gives the specific structure of the shaft extension corrugated inner skirt structure 33, the third inner corrugated section, the fourth inner corrugated section and the shaft extension main body gradually and continuously extend from the inside to the outside along the radial direction of the shaft extension main body; the stress of the annular membrane disc 1 matched with the shaft extension main body during forming is reduced, and the service life of the annular membrane disc 1 matched with the shaft extension main body is prolonged.

[0157] Embodiment 8

[0158] On the basis of embodiment 5 or 6, only the shaft extension radial outer edge is formed with the shaft extension corrugated skirt structure, which is a shaft extension corrugated outer skirt structure, the third corrugated section of the shaft extension corrugated outer skirt structure is a third outer corrugated section, and the fourth corrugated section of the shaft extension corrugated outer skirt structure is a fourth outer corrugated section;

[0159] From the outside to the inside along the radial direction of the shaft extension main body, the third outer corrugated section, the fourth outer corrugated section and the shaft extension main body are sequentially arranged; the corrugated height of the third outer corrugated section linearly decreases from the outside to the inside along the radial direction of the shaft extension main body.

[0160] In summary, the embodiment gives the specific structure of the shaft extension corrugated outer skirt structure, the third outer corrugated section, the fourth outer corrugated section and the shaft extension main body gradually and continuously extend from the outside to the inside along the radial direction of the shaft extension main body; the stress of the annular membrane disc 1 matched with the shaft extension main body during forming is reduced, and the service life of the annular membrane disc 1 matched with the shaft extension main body is prolonged.

[0161] Embodiment 9

[0162] As Figures 5 to 6d shown, the embodiment provides a transmission connection assembly, which comprises a ring-shaped membrane disc 1 and an inner flange 3, the ring-shaped membrane disc 1 is the ring-shaped membrane disc 1 in the embodiment 2, and the inner flange 3 is the flange in the embodiment 7;

[0163] A radial outer edge of the membrane disc body 11 is formed with a membrane disc pin hole 132; the inner flange 3 comprises an inner flange disc 31 and a shaft extension body, the shaft extension body of the inner flange 3 is arranged at an axial end of the inner flange disc 31; a radial inner edge of the shaft extension body of the inner flange 3 is formed with a shaft extension corrugated skirt structure, and an inner side of the shaft extension body of the inner flange 3 is formed with a compression thread 35;

[0164] The transmission connection assembly further comprises an outer flange, the outer flange comprises an outer flange disc, and the outer flange disc is formed with an outer flange pin hole;

[0165] The membrane disc skirt convex part 163 of the membrane disc corrugated inner skirt structure 14 cooperates with the shaft extension concave part 342 of the shaft extension corrugated inner skirt structure 33, the membrane disc skirt concave part 164 of the membrane disc corrugated inner skirt structure 14 cooperates with the shaft extension convex part 341 of the shaft extension corrugated inner skirt structure 33, the membrane disc pin hole 132 cooperates with the outer flange pin hole, and then the ring-shaped membrane disc 1 can be connected with the inner flange 3 and the outer flange.

[0166] Since the circumference of the radial inner edge 12 of the membrane disc is far less than the circumference of the radial outer edge 13 of the membrane disc, and the flange disc radius of the inner flange 3 is also far less than the flange disc radius of the outer flange, the shear stress per unit length on the radial inner edge 12 of the membrane disc is far greater than the shear stress per unit length on the radial outer edge 13 of the membrane disc; therefore, the connection mode of the radial inner edge 12 of the membrane disc and the inner flange 3 is usually a key factor of the reliability and carrying capacity of the ring-shaped membrane disc 1; the membrane disc corrugated inner skirt structure 14 can greatly improve the overall reliability and carrying capacity of the ring-shaped membrane disc 1; the radial outer edge 13 of the membrane disc is formed with the membrane disc pin hole 132, even though there is a large stress concentration phenomenon at the membrane disc pin hole 132, the influence on the overall reliability and carrying capacity of the ring-shaped membrane disc 1 is also limited; therefore, the connection between the radial inner edge 12 of the membrane disc and the inner flange 3 through the corrugated skirt structure has a relatively significant performance improvement; the connection between the radial outer edge 13 of the membrane disc and the outer flange through the traditional membrane disc pin hole 132 and the pin bolt connection is simple in structure and can still maintain reliable connection.

[0167] The transmission connection assembly further comprises a compression ring 41 and a compression bolt 42. The axial end of the compression ring 41 is formed with a corrugated skirt structure. The compression bolt 42 comprises a compression section and a threaded section. When the annular diaphragm disc 1 and the inner flange 3 need to be connected, the inner flange 3 is arranged at the axial end of the annular diaphragm disc 1, so that the shaft extension corrugated inner skirt structure 33 and the diaphragm disc corrugated inner skirt structure 14 are matched. The compression ring 41 is arranged at the other axial end of the annular diaphragm disc 1, so that the corrugated skirt structure of the compression ring 41 and the diaphragm disc corrugated inner skirt structure 14 are matched. The threaded section penetrates through the compression ring 41 and the annular diaphragm disc 1, and the compression bolt 42 is connected with the compression thread 35. The compression section is located at the end of the compression ring 41 away from the inner flange 3 and abuts against the compression ring 41, so as to connect the annular diaphragm disc 1 and the inner flange 3.

[0168] According to actual needs, a plurality of annular diaphragm discs 1 can be stacked together and positioned through the positioning holes 131 to form a diaphragm disc group 43. When the diaphragm disc group 43 and the inner flange 3 need to be connected, the inner flange 3 is arranged at the axial end of the diaphragm disc group 43, so that the shaft extension corrugated inner skirt structure 33 and the diaphragm disc corrugated inner skirt structure 14 are matched. The compression ring 41 is arranged at the other axial end of the diaphragm disc group 43, so that the corrugated skirt structure of the compression ring 41 and the diaphragm disc corrugated inner skirt structure 14 are matched. The threaded section penetrates through the compression ring 41 and the diaphragm disc group 43, and the threaded section is connected with the compression thread 35. The compression section is located at the end of the compression ring 41 away from the inner flange 3 and abuts against the compression ring 41, so as to connect the diaphragm disc group 43 and the inner flange 3.

[0169] In summary, the diaphragm disc corrugated inner skirt structure 14 and the shaft extension corrugated inner skirt structure 33 are matched to realize the connection between the annular diaphragm disc 1 and the inner flange 3, which can greatly improve the overall reliability and load capacity of the annular diaphragm disc 1. The diaphragm disc pin hole 132 and the outer flange pin hole are matched to realize the connection between the annular diaphragm disc 1 and the outer flange, which can maintain reliable connection.

[0170] Embodiment 10

[0171] The embodiment provides a transmission connection assembly, which comprises an annular diaphragm disc 1 and a flange. The annular diaphragm disc 1 is the annular diaphragm disc 1 in the embodiment 4. The flange comprises an inner flange 3 and an outer flange. The inner flange 3 is the flange in the embodiment 7. The outer flange is the flange in the embodiment 8.

[0172] The radial inner edge and the radial outer edge of the diaphragm disc main body 11 are both formed with a diaphragm disc corrugated skirt structure. The diaphragm disc corrugated skirt structure formed at the radial inner edge of the diaphragm disc main body 11 is a diaphragm disc corrugated inner skirt structure 14. The diaphragm disc corrugated skirt structure formed at the radial outer edge of the diaphragm disc main body 11 is a diaphragm disc corrugated outer skirt structure 15.

[0173] The flange comprises an inner flange 3 and an outer flange; the inner flange 3 comprises an inner flange disc 31 and a shaft extension body, the shaft extension body of the inner flange 3 is arranged at one axial end of the inner flange disc 31; a radially inner edge of the shaft extension body of the inner flange 3 is formed with a shaft extension corrugated skirt structure, which is a shaft extension corrugated inner skirt structure 33; the outer flange comprises an outer flange disc and a shaft extension body, a radially outer edge of the shaft extension body of the outer flange is formed with a shaft extension corrugated skirt structure, which is a shaft extension corrugated outer skirt structure;

[0174] The membrane disc skirt convex part 163 of the membrane disc corrugated inner skirt structure 14 and the shaft extension concave part 342 of the shaft extension corrugated inner skirt structure 33 are matched, the membrane disc skirt concave part 164 of the membrane disc corrugated inner skirt structure 14 and the shaft extension convex part 341 of the shaft extension corrugated inner skirt structure 33 are matched, the membrane disc skirt convex part 163 of the membrane disc corrugated outer skirt structure 15 and the shaft extension concave part 342 of the shaft extension corrugated outer skirt structure are matched, and the membrane disc skirt concave part 164 of the membrane disc corrugated outer skirt structure 15 and the shaft extension convex part 341 of the shaft extension corrugated outer skirt structure are matched, so that the annular membrane disc 1 can be connected with the inner flange 3 and the outer flange.

[0175] The membrane disc radial inner edge 12 and the inner flange 3 are connected through the corrugated skirt structure, the membrane disc radial outer edge 13 and the outer flange are connected through the corrugated skirt structure, the stress at the membrane disc radial inner edge 12 and the membrane disc radial outer edge 13 is small, and the overall reliability, carrying capacity and power density of the annular membrane disc 1 are higher.

[0176] The transmission connection assembly further comprises a compression ring 41, a compression bolt 42 and a compression nut, the compression ring 41 comprises an outer compression ring and an inner compression ring, and an axial end of the outer compression ring and the inner compression ring is formed with a corrugated skirt structure; the compression bolt 42 and the compression nut each comprise a compression section and a threaded section;

[0177] When the annular membrane disc 1 and the inner flange 3 need to be connected, the inner flange 3 is arranged at one axial end of the annular membrane disc 1, so that the shaft extension corrugated inner skirt structure 33 and the membrane disc corrugated inner skirt structure 14 are matched; the inner compression ring is arranged at the other axial end of the annular membrane disc 1, so that the corrugated skirt structure of the inner compression ring and the membrane disc corrugated inner skirt structure 14 are matched; the threaded section of the compression bolt 42 passes through the inner compression ring and the annular membrane disc 1, and the threaded section of the compression bolt 42 is connected with the compression thread 35 of the inner flange 3, the compression section of the compression bolt 42 is located at one end of the inner compression ring away from the inner flange 3 and abuts against the inner compression ring, so that the annular membrane disc 1 and the inner flange 3 are connected;

[0178] When the annular membrane disc 1 needs to be connected with the outer flange, the outer flange is arranged at one axial end of the annular membrane disc 1, so that the corrugated outer skirt structure of the shaft extension and the corrugated outer skirt structure 15 of the membrane disc are matched; the outer compression ring is arranged at the other axial end of the annular membrane disc 1, so that the corrugated skirt structure of the outer compression ring and the corrugated outer skirt structure 15 of the membrane disc are matched; the threaded section of the compression nut is sleeved on the outer compression ring and the annular membrane disc 1, and the threaded section of the compression nut is connected with the compression thread of the outer flange, the compression section of the compression nut is located at one end of the outer compression ring away from the outer flange, and the compression section of the compression nut abuts on the outer compression ring, so as to connect the annular membrane disc 1 with the outer flange.

[0179] According to actual needs, a plurality of annular membrane discs 1 can be stacked together and positioned through the positioning holes 131 to form a membrane disc group 43, and the membrane disc group 43 is connected with the inner flange 3 and the outer flange.

[0180] In summary, the embodiment provides that the membrane disc corrugated inner skirt structure 14 and the shaft extension corrugated inner skirt structure 33 are matched, so that the connection between the annular membrane disc 1 and the inner flange 3 can be realized; the membrane disc corrugated outer skirt structure 15 and the shaft extension corrugated outer skirt structure are matched, so that the connection between the annular membrane disc 1 and the outer flange can be realized; and the overall reliability and load capacity of the annular membrane disc 1 can be greatly improved.

[0181] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structure, arrangement or implementation method described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims.

Claims

1. An annular membrane disc (1) for driving connection with a flange; said flange comprising a shaft extension, said shaft extension comprising a shaft extension body, said shaft extension body being formed with a shaft extension corrugated skirt structure; characterized in that, The annular membrane disc (1) comprises a membrane disc body (11), one end of the membrane disc body (11) is formed with a membrane disc corrugated skirt structure for cooperating with a shaft extension corrugated skirt structure to realize the transmission connection of the annular membrane disc (1) and a flange; The membrane disc corrugated skirt structure is alternately formed with a membrane disc skirt convex portion (163) and a membrane disc skirt concave portion (164) along the circumference of the membrane disc body (11); wherein the membrane disc skirt convex portion (163) protrudes to one side of the membrane disc body (11) in the axial direction, and the membrane disc skirt concave portion (164) is recessed to the other side of the membrane disc body (11) in the axial direction; The protrusion height of the membrane disc skirt convex portion (163) and the recess depth of the membrane disc skirt concave portion (164) gradually decrease along the radial direction of the membrane disc body (11) to the membrane disc body (11); wherein the protrusion height of the membrane disc skirt convex portion (163) is the distance between any point on the membrane disc skirt convex portion (163) and the center surface (183) of the membrane disc body, and the recess depth of the membrane disc skirt concave portion (164) is the distance between any point on the membrane disc skirt concave portion (164) and the center surface (183) of the membrane disc body.

2. Ring membrane disc (1) according to claim 1, characterized in that On either axial side of the membrane disc body (11), the convex surface (165) of the membrane disc skirt convex portion (163) and the concave surface (166) of the membrane disc skirt concave portion (164) gradually and smoothly transition to the corresponding axial side surface of the membrane disc body (11) along the radial direction of the membrane disc body (11).

3. Ring membrane disc (1) according to claim 1, characterized in that On the circumferential section of the membrane disc corrugated skirt structure, the membrane disc skirt convex portion (163) is formed with a membrane disc skirt convex portion circumferential contour line (161), and the membrane disc skirt concave portion (164) is formed with a membrane disc skirt concave portion circumferential contour line (162); When the circumferential section of the membrane disc corrugated skirt structure is unfolded into a plane, the membrane disc skirt convex portion circumferential contour line (161) and the membrane disc skirt concave portion circumferential contour line (162) are both circular arcs, or one membrane disc skirt convex portion circumferential contour line (161) and an adjacent membrane disc skirt concave portion circumferential contour line (162) constitute a periodic sinusoidal curve; Wherein, the circumferential section of the membrane disc corrugated skirt structure is the circumferential section formed by cutting the cylindrical surface coaxially arranged with the membrane disc body (11) from the membrane disc corrugated skirt structure.

4. Ring membrane disc (1) according to claim 1, characterized in that The membrane disc corrugated skirt structure comprises a first corrugated section and a second corrugated section in the radial direction of the membrane disc body (11), the first corrugated section is arranged away from the membrane disc body (11), and the second corrugated section is arranged close to the membrane disc body (11); The corrugated height of the first corrugated section linearly decreases in the direction from the first corrugated section to the second corrugated section; In the radial direction of the membrane disc body (11), the second corrugated section and the first corrugated section are tangentially connected, and the second corrugated section and the membrane disc body (11) are tangentially connected.

5. Ring-shaped membrane disc (1) according to claim 1, characterized in that The membrane disc corrugated skirt structure is formed by calendering and stretching from one end of the membrane disc body (11) in the radial direction.

6. Ring-shaped membrane disc (1) according to claim 1, characterized in that The film disc skirt edge convex part (163) and the adjacent film disc skirt edge concave part (164) are tangentially connected, and the included angle between the tangent plane A (181) of the tangential connection of the two and the central plane (183) of the film disc body is α, which satisfies: 20°≤α≤35° at the radial end of the film disc body (11); and / or, The included angle between the tangent plane B (182) of the outer contour peak line of the film disc skirt edge convex part (163) and the central plane (183) of the film disc body is β, which satisfies: 4.5°≤β≤12°; wherein, along the axial direction of the film disc body (11), from the central plane (183) of the film disc body (11) to the film disc skirt edge convex part (163), the outer contour peak line of the film disc skirt edge convex part (163) is arranged away from the central plane (183) of the film disc body, and the inner contour peak line of the film disc skirt edge convex part (163) is arranged close to the central plane (183) of the film disc body.

7. Ring-shaped membrane disc (1) according to claim 4, characterized in that The film disc corrugated skirt structure has a radial width W10 along the film disc body (11), and the first corrugated section has a radial width W11 along the film disc body (11), and the W10 and W11 satisfy: 60%≤W11 / W10≤80%.

8. Ring membrane disc (1) according to claim 1, characterized in that The film disc body (11) comprises a film disc radial inner edge (12) and a film disc radial outer edge (13) arranged opposite along the radial direction of the film disc body (11), and the film disc corrugated skirt structure is formed at least at the film disc radial inner edge (12).

9. Ring-shaped membrane disc (1) according to claim 8, characterized in that The film disc corrugated skirt structure formed by the film disc radial inner edge (12) is a film disc corrugated inner skirt structure (14), the first corrugated section of the film disc corrugated inner skirt structure (14) is a first inner corrugated section (141), and the second corrugated section of the film disc corrugated inner skirt structure (14) is a second inner corrugated section (142). From inside to outside along the radial direction of the film disc body (11), the first inner corrugated section (141), the second inner corrugated section (142) and the film disc body (11) are arranged in sequence, and the corrugated height of the first inner corrugated section (141) linearly decreases from inside to outside along the radial direction of the film disc body (11).

10. Ring-shaped membrane disc (1) according to claim 8, characterized in that The film disc corrugated skirt structure formed by the film disc radial outer edge (13) is a film disc corrugated outer skirt structure (15), the first corrugated section of the film disc corrugated outer skirt structure (15) is a first outer corrugated section (151), and the second corrugated section of the film disc corrugated outer skirt structure (15) is a second outer corrugated section (152). From outside to inside along the radial direction of the film disc body (11), the first outer corrugated section (151), the second outer corrugated section (152) and the film disc body (11) are arranged in sequence, and the corrugated height of the first outer corrugated section (151) linearly decreases from outside to inside along the radial direction of the film disc body (11).

11. A flange, characterized by The shaft extension includes a shaft extension body, and the shaft extension body is formed with a shaft extension corrugated skirt structure; the shaft extension corrugated skirt structure is away from the flange plate and located at a radial end of the shaft extension body; the shaft extension corrugated skirt structure has a structure matched with the membrane disc corrugated skirt structure in any one of claims 1 to 10.

12. A flange, characterized by The shaft extension includes a shaft extension body, and the shaft extension body is formed with a shaft extension corrugated skirt structure; the shaft extension corrugated skirt structure is away from the flange plate and located at a radial end of the shaft extension body; the shaft extension corrugated skirt structure is used for driving connection with the membrane disc corrugated skirt structure in any one of claims 1 to 10; The shaft extension corrugated skirt structure is alternately formed with a shaft extension convex part and a shaft extension concave part along the circumference of the shaft extension body; wherein the shaft extension convex part protrudes to one side of the shaft extension body in the axial direction, and the shaft extension concave part is recessed to the other side of the shaft extension body in the axial direction; The shaft extension convex part and the shaft extension concave part each gradually and smoothly transition to the shaft extension body along the radial direction of the shaft extension body.

13. A drive connection assembly characterized by, The flange includes an inner flange (3) and the annular membrane disc (1) in any one of claims 1 to 10; the inner flange (3) is the flange in any one of claims 11 to 12. The radial inner edge of the membrane disc body (11) is formed with the membrane disc corrugated skirt structure, and the radial outer edge of the membrane disc body (11) is formed with a membrane disc pin hole (132); the radial inner edge of the shaft extension body of the inner flange (3) is formed with the shaft extension corrugated skirt structure; The driving connection assembly further includes an outer flange, and the flange plate of the outer flange is formed with an outer flange pin hole; The membrane disc corrugated skirt structure and the shaft extension corrugated skirt structure are matched, the membrane disc pin hole (132) and the outer flange pin hole are matched, and then the annular membrane disc (1) can be connected with the inner flange (3) and the outer flange.

14. A drive connection assembly characterized by, The flange includes an inner flange (3) and the annular membrane disc (1) in any one of claims 1 to 10; the inner flange (3) is the flange in any one of claims 11 to 12. The radial inner edge and the radial outer edge of the membrane disc body (11) are each formed with the membrane disc corrugated skirt structure; the membrane disc corrugated skirt structure formed at the radial inner edge of the membrane disc body (11) is a membrane disc corrugated inner skirt structure (14), and the membrane disc corrugated skirt structure formed at the radial outer edge of the membrane disc body (11) is a membrane disc corrugated outer skirt structure (15); The flange includes an inner flange (3) and an outer flange; the radial inner edge of the shaft extension body of the inner flange (3) is formed with the shaft extension corrugated skirt structure, and the shaft extension corrugated skirt structure is a shaft extension corrugated inner skirt structure (33); the radial outer edge of the shaft extension body of the outer flange is formed with the shaft extension corrugated skirt structure, and the shaft extension corrugated skirt structure is a shaft extension corrugated outer skirt structure The membrane disc corrugated inner skirt structure (14) and the shaft extension corrugated inner skirt structure (33) are matched, the membrane disc corrugated outer skirt structure (15) and the shaft extension corrugated outer skirt structure are matched, and then the annular membrane disc (1) can be connected with the inner flange (3) and the outer flange.

Images