coupling

Abstract

This invention proposes a coupling, comprising: a first coupling body and a second coupling body; a connecting member for connecting the first coupling body and the second coupling body; and a housing, the housing including a receiving cavity and an oil injection section, the oil injection section communicating with the receiving cavity. A portion of the first coupling body, a portion of the second coupling body, and the connecting member are disposed within the receiving cavity. The receiving cavity of the coupling provided by this invention is used to store lubricating oil, and the oil injection section is used to inject lubricating oil into the receiving cavity. By placing the portion connecting the first and second coupling bodies within the receiving cavity, during operation, in addition to lubricating the relatively moving friction parts, the heat generated by the coupling will raise the temperature of the lubricating oil. The lubricating oil, in direct contact with the housing, will conduct heat to the housing, further promoting heat dissipation and cooling.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and more specifically, to a coupling. Background Technology

[0002] During operation, couplings generate heat. If this heat cannot be dissipated in time, it will greatly affect the transmission efficiency and service life of the coupling. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] Therefore, one aspect of the present invention is to provide a coupling.

[0005] In view of this, according to one aspect of the present invention, a coupling is provided, comprising: a first coupling body and a second coupling body; a connecting member for connecting the first coupling body and the second coupling body; a housing, the housing comprising a receiving cavity and an oil injection portion communicating with the receiving cavity, wherein a portion of the first coupling body, a portion of the second coupling body, and the connecting member are disposed within the receiving cavity.

[0006] The coupling provided by this invention includes a first coupling body, a second coupling body, a connecting member, and a housing. Specifically, the first coupling body and the second coupling body are movably connected by the connecting member. Further, the housing includes a receiving cavity and an oil injection section communicating with the receiving cavity, with the portion of the first coupling body and the second coupling body connected to each other located within the receiving cavity. The receiving cavity is used to store lubricating oil, and the oil injection section is used to inject lubricating oil into the receiving cavity. By placing the portion of the first coupling body and the second coupling body connected within the receiving cavity, during operation, in addition to lubricating the parts subject to relative motion and friction, the heat generated by the coupling will raise the temperature of the lubricating oil. Since the lubricating oil is in direct contact with the housing, it will conduct heat to the housing, further promoting heat dissipation and cooling.

[0007] The coupling according to the present invention may also have the following technical features:

[0008] In the above technical solution, preferably, a heat sink is disposed on the outer wall of the housing.

[0009] In this technical solution, heat sinks are provided on the outer wall of the housing. By providing heat sinks on the outer wall of the housing, the heat dissipation area is increased. Moreover, during the rotation of the housing, the heat sinks disturb the air around the coupling, which is more conducive to promoting heat dissipation and cooling.

[0010] In any of the above technical solutions, preferably, the shell further includes: a first rib, which is disposed on the inner wall of the shell; and a second rib, which is disposed on the inner wall of the shell; wherein the first rib and the second rib are alternately distributed on the inner wall of the shell.

[0011] In this technical solution, the inner wall of the shell is provided with first and second ribs that are distributed in an interlaced manner. That is, the inner wall of the receiving cavity is provided with multiple first ribs and multiple second ribs. By providing multiple first and second ribs that are distributed in an interlaced manner in the receiving cavity, the lubricating oil inside the receiving cavity can be driven to flow and splash, accelerate the conduction of heat, and further improve the heat dissipation and lubrication effect.

[0012] Specifically, the extension directions of the first and second ribs are intersecting each other, thereby enabling the flow and splashing of lubricating oil in multiple directions.

[0013] Specifically, the first rib is configured to extend along the circumferential direction of the shell, and the second rib can be configured to extend along the axial direction of the shell. There are multiple first ribs, which are evenly distributed along the circumferential direction of the shell on the inner wall of the receiving cavity. There are also multiple second ribs, which are spaced apart and evenly distributed along the axial direction of the shell. This allows for the uniform guidance and distribution of lubricating oil, resulting in uniform heat distribution and optimal heat dissipation.

[0014] In any of the above technical solutions, preferably, the housing further includes: a mounting portion, which is provided at one end of the housing; a positioning portion, which is provided at the other end of the housing and is connected to the second coupling; and a sealing gasket, which is provided in the mounting portion and located between the housing and the first coupling.

[0015] In this technical solution, a mounting part is provided at one end of the housing, and a positioning part is provided at the other end of the housing. The sealing gasket is connected to the mounting part and is used to seal the housing and the first coupling body so that a closed receiving cavity is formed inside the housing, thereby ensuring the sealing of the receiving cavity and preventing the lubricating oil from leaking.

[0016] In any of the above technical solutions, preferably, the first coupling includes: a first body; a positioning flange disposed on the first body, the positioning flange being located on the peripheral sidewall of the first body, and a sealing gasket connected to the positioning flange.

[0017] In this technical solution, the first coupling includes a first body and a positioning flange disposed on the periphery of the first body. The positioning flange is used to install a sealing gasket.

[0018] In any of the above technical solutions, preferably, the sealing gasket includes: a first connecting portion, the first connecting portion including a first connecting hole; a transition portion, one end of the transition portion being connected to the first connecting portion; and a second connecting portion, the second connecting portion being connected to the other end of the transition portion; wherein, the sealing gasket is an integral structure.

[0019] In this technical solution, the sealing gasket is an integral structure. The sealing gasket includes a first connecting part, a transition part, and a second connecting part. The first connecting part is located on the outer ring, the second connecting part is located on the inner ring, and the transition part is located between the first and second connecting parts. During operation of the coupling, a slight relative rotation occurs between the first and second coupling bodies, resulting in an error between their axes. This also causes a slight angle between the mounting end face of the housing used to install the sealing gasket and the positioning flange of the first coupling body used to install the sealing gasket. This causes the relative positions of the inner and outer fixing surfaces of the sealing gasket to continuously change during rotation. By providing the transition part, the sealing gasket can better adapt to this situation, thus enabling it to withstand greater torsion and warping.

[0020] In any of the above technical solutions, preferably, it further includes: a first flange, which is connected to the first connecting part and the housing; and a second flange, which is connected to the second connecting part and the positioning flange.

[0021] The technical solution also includes a first flange and a second flange. The first flange is used to fix the outer ring of the gasket, and the second flange is used to fix the inner ring of the gasket. By setting the first flange and the second flange, the gasket is fixed to achieve a better sealing effect.

[0022] In any of the above technical solutions, preferably, the first flange has a rounded corner structure on its inner ring; the second flange has a rounded corner structure on its outer ring; and the gasket has a wavy cross-sectional shape.

[0023] Furthermore, in this technical solution, by setting the sealing gasket as a corrugated sealing gasket, the sealing gasket can better adapt to the state changes of the inner and outer fixing surfaces of the sealing gasket during operation of the coupling. Furthermore, by setting the inner ring of the first flange and the outer ring of the second flange both as rounded corner structures, friction between the sealing gasket and the housing, the first coupling, the first flange, and the second flange is reduced.

[0024] In any of the above technical solutions, preferably, the second coupling includes: a second body; a positioning stop disposed on the second body, the positioning stop extending circumferentially along the second body, and a positioning part disposed within the positioning stop.

[0025] In this technical solution, the second coupling includes a second main body and a positioning stop disposed on the periphery of the second main body. The positioning stop is used to cooperate with the positioning part of the housing, thereby realizing the positioning function of the housing.

[0026] In any of the above technical solutions, preferably, the housing includes a first housing and a second housing, the first housing and the second housing are connected to form a receiving cavity, and the oil injection part is disposed on one of the first housing and the second housing.

[0027] In this technical solution, the housing includes a first housing and a second housing. The cross-section of the first housing and the second housing along the direction perpendicular to the axial direction is semi-circular. The connecting ends of the first housing and the second housing are provided with connecting surfaces and are fastened together by bolts to form a receiving cavity.

[0028] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 A schematic diagram of the structure of a coupling according to an embodiment of the present invention is shown;

[0031] Figure 2 It shows Figure 1 A structural schematic diagram of the coupling in the illustrated embodiment from another perspective;

[0032] Figure 3 It shows Figure 1 A cross-sectional view of the coupling in the embodiment shown.

[0033] Figure 4 It shows Figure 3 An enlarged structural diagram of point A in the illustrated embodiment;

[0034] Figure 5 It shows Figure 1 A schematic diagram of the structure of the first coupling in the embodiment shown;

[0035] Figure 6 It shows Figure 5 A schematic axial cross-sectional view of the first coupling in the illustrated embodiment;

[0036] Figure 7 It shows Figure 6 A schematic cross-sectional view of the first coupling in the embodiment shown along line AA;

[0037] Figure 8 It shows Figure 1A schematic diagram of the structure of the second coupling in the embodiment shown;

[0038] Figure 9 It shows Figure 8 A schematic axial cross-sectional view of the second coupling in the embodiment shown;

[0039] Figure 10 It shows Figure 9 A schematic cross-sectional view of the second coupling in the embodiment shown in the figure along the BB direction;

[0040] Figure 11 It shows Figure 1 A schematic diagram of the structure of the first housing in the embodiment shown;

[0041] Figure 12 It shows Figure 1 A schematic diagram of the structure of the second housing in the embodiment shown;

[0042] Figure 13 It shows Figure 1 A schematic diagram of the sealing gasket structure of the embodiment shown;

[0043] Figure 14 It shows Figure 13 A partial cross-sectional view of the sealing gasket in the illustrated embodiment;

[0044] Figure 15 It shows Figure 1 A partial cross-sectional view of the first flange in the illustrated embodiment;

[0045] Figure 16 It shows Figure 1 A partial cross-sectional view of the second flange in the illustrated embodiment.

[0046] Appendix Figures 1 to 16 The correspondence between components and their designations is as follows:

[0047] 1. Coupling; 10. First coupling body; 101. First main body; 102. Positioning flange; 104. First cavity; 106. First oil filling hole; 108. First oil drain hole; 12. Positioning stop; 14. Mounting groove; 16. Raised tooth; 20. Second coupling body; 201. Second main body; 202. Second cavity; 204. Second oil filling hole; 206. Second oil drain hole; 30. Serpentine spring; 40. Housing; 402. First housing; 404. Second housing; 406. First raised rib; 408. Second raised rib; 412. Oil filling part; 414. Heat sink; 416. Positioning part; 50. Sealing gasket; 502. First connecting part; 504. Transition part; 506. Second connecting part; 60. First flange; 70. Second flange; 80. Rounded corner structure. Detailed Implementation

[0048] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0050] According to an embodiment of the present invention, a coupling 1 is provided, comprising: a first coupling body 10 and a second coupling body 20; a connector for connecting the first coupling body 10 and the second coupling body 20; a housing 40, the housing 40 including a receiving cavity and an oil injection part 412, the oil injection part 412 communicating with the receiving cavity, and a portion of the first coupling body 10, a portion of the second coupling body 20, and the connector disposed within the receiving cavity.

[0051] The coupling 1 provided by the present invention includes a first coupling body 10, a second coupling body 20, a connecting member, and a housing 40. Specifically, the first coupling body 10 and the second coupling body 20 are movably connected by the connecting member. Further, the housing 40 includes a receiving cavity and an oil injection part 412 communicating with the receiving cavity, and the interconnected portion of the first coupling body 10 and the second coupling body 20 is located in the receiving cavity. The receiving cavity is used to store lubricating oil, and the oil injection part 412 is used to inject lubricating oil into the receiving cavity. By setting the interconnected portion of the first coupling body 10 and the second coupling body 20 in the receiving cavity, during operation, in addition to lubricating the parts that are in relative motion and friction, the heat generated by the coupling 1 will raise the temperature of the lubricating oil. The lubricating oil is in direct contact with the housing 40, which will conduct heat to the housing 40, thereby further promoting heat dissipation and cooling.

[0052] In the above embodiment, preferably, a heat sink 414 is disposed on the outer wall of the housing 40.

[0053] In this embodiment, a heat sink 414 is provided on the outer wall of the housing 40. By providing the heat sink 414 on the outer wall of the housing 40, the heat dissipation area is increased. Moreover, during the rotation of the housing 40, the heat sink 414 disturbs the air around the coupling 1, which is more conducive to promoting heat dissipation and cooling.

[0054] In any of the above embodiments, preferably, the housing 40 further includes: a first rib 406 disposed on the inner wall of the housing 40; and a second rib 408 disposed on the inner wall of the housing 40; wherein the first rib 406 and the second rib 408 are alternately distributed on the inner wall of the housing 40.

[0055] In this embodiment, the inner wall of the housing 40 is provided with first ribs 406 and second ribs 408 that are distributed in an alternating manner. That is, the inner wall of the receiving cavity is provided with a plurality of first ribs 406 and a plurality of second ribs 408. By providing a plurality of first ribs 406 and second ribs 408 that are distributed in an alternating manner in the receiving cavity, the lubricating oil inside the receiving cavity can be driven to flow and splash, accelerate the conduction of heat, and further improve the heat dissipation and lubrication effect.

[0056] Specifically, the extension directions of the first rib 406 and the second rib 408 are intersecting each other, thereby enabling the flow and splashing of lubricating oil in multiple directions.

[0057] Specifically, the first rib 406 is configured to extend along the circumferential direction of the housing 40, and the second rib 408 can be configured to extend along the axial direction of the housing 40. There are multiple first ribs 406, which are evenly distributed along the circumferential direction of the housing 40 on the inner wall of the receiving cavity. There are also multiple second ribs 408, which are spaced apart and evenly distributed along the axial direction of the housing 40. This allows for the uniform guidance and distribution of lubricating oil, thereby achieving uniform heat distribution and optimal heat dissipation.

[0058] In any of the above embodiments, preferably, the housing 40 further includes: a mounting portion, which is provided at one end of the housing 40; a positioning portion 416, which is provided at the other end of the housing 40 and is connected to the second coupling 20; and a sealing gasket 50, which is connected to the mounting portion and is located between the housing 40 and the first coupling 10.

[0059] In this embodiment, a mounting part is provided at one end of the housing 40, and a positioning part 416 is provided at the other end of the housing 40. The sealing gasket 50 is connected to the mounting part and is used to seal the housing 40 and the first coupling 10 so that a closed receiving cavity is formed inside the housing 40, thereby ensuring the sealing of the receiving cavity and preventing the lubricating oil from leaking.

[0060] In any of the above embodiments, preferably, the first coupling 10 includes: a first body 101; a positioning flange 102 disposed on the first body 101, the positioning flange 102 being located on the peripheral sidewall of the first body 101, and a sealing gasket 50 being connected to the positioning flange 102.

[0061] In this embodiment, the first coupling 10 includes a first body 101 and a positioning flange 102 disposed around the periphery of the first body 101. The positioning flange 102 is used to install the sealing gasket 50.

[0062] In any of the above embodiments, preferably, the sealing gasket 50 includes: a first connecting portion 502, the first connecting portion 502 including a first connecting hole; a transition portion 504, one end of the transition portion 504 being connected to the first connecting portion 502; and a second connecting portion 506, the second connecting portion 506 being connected to the other end of the transition portion 504; wherein, the sealing gasket 50 is an integral structure.

[0063] In this embodiment, the sealing gasket 50 is an integral structure. The sealing gasket 50 includes a first connecting portion 502, a transition portion 504, and a second connecting portion 506. The first connecting portion 502 is located on the outer ring, the second connecting portion 506 is located on the inner ring, and the transition portion 504 is located between the first connecting portion 502 and the second connecting portion 506. When the coupling 1 is working, a small relative rotation occurs between the first coupling body 10 and the second coupling body 20, resulting in an error between their axes. This also causes a small angle between the mounting end face of the housing 40 for mounting the sealing gasket 50 and the positioning flange 102 of the first coupling body 10 for mounting the sealing gasket 50. This causes the relative position of the inner and outer fixing surfaces of the sealing gasket 50 to continuously change during rotation. By providing the transition portion 504, the sealing gasket 50 can better adapt to this situation, thereby allowing the sealing gasket 50 to withstand greater torsion and warping.

[0064] Specifically, the sealing gasket 50 is a part made of sealing materials such as rubber or polyurethane.

[0065] In any of the above embodiments, preferably, it further includes: a first flange 60, which is connected to the first connecting part 502 and the housing 40; and a second flange 70, which is connected to the second connecting part 506 and the positioning flange 102.

[0066] In this embodiment, a first flange 60 and a second flange 70 are also included. The first flange 60 is used to fix the outer ring of the sealing gasket 50, and the second flange 70 is used to fix the inner ring of the sealing gasket 50. By setting the first flange 60 and the second flange 70, the sealing gasket 50 is fixed to achieve a better sealing effect.

[0067] In any of the above embodiments, preferably, the first flange 60 has an inner ring with a rounded corner structure 80; the second flange 70 has an outer ring with a rounded corner structure 80; and the sealing gasket 50 has a wavy cross-sectional shape.

[0068] In this embodiment, by further configuring the sealing gasket 50 as a corrugated sealing gasket, the sealing gasket 50 can be better adapted to the state changes of the inner and outer fixing surfaces of the sealing gasket 50 during operation of the coupling 1.

[0069] Furthermore, the inner ring of the first flange 60 and the outer ring of the second flange 70 are both set as rounded corner structures 80, thereby reducing the friction between the sealing gasket 50 and the housing 40, the first coupling 10, the first flange 60 and the second flange 70.

[0070] Furthermore, by setting the inner ring of the first flange 60 and the outer ring of the second flange 70 to a rounded corner structure 80, the first flange 60 and the second flange 70 are prevented from being installed in reverse, so that there is no need to distinguish between the positive and negative sides during the installation process.

[0071] Specifically, in the installed state, one end face of the sealing gasket 50 is in contact with the corresponding end faces of the housing 40 and the first coupling 10. The part in contact with the housing 40 is called the outer fixing surface, and the part in contact with the positioning flange 102 of the first coupling 10 is called the inner fixing surface. The cross-section between the inner fixing surface and the outer fixing surface is wavy. Both the first flange 60 and the second flange 70 are discs with evenly distributed bolt mounting holes around their circumference. The transition between the outer circular surface and the two end faces of the second flange 70 is rounded, and the transition between the inner cylindrical surface of the first flange 60 and the two end faces is also rounded.

[0072] In any of the above embodiments, preferably, the second coupling 20 includes: a second body 201; a positioning stop 12 disposed on the second body 201, the positioning stop 12 extending circumferentially along the second body 201, and a positioning part 416 disposed within the positioning stop 12.

[0073] In this embodiment, the second coupling 20 includes a second body 201 and a positioning stop 12 disposed on the periphery of the second body 201. The positioning stop 12 is used to cooperate with the positioning part 416 to achieve the positioning of the housing.

[0074] In any of the above embodiments, preferably, the housing 40 includes a first housing 402 and a second housing 404, the first housing 402 and the second housing 404 are connected to form a receiving cavity, and the oil injection part 412 is disposed on one of the first housing 402 and the second housing 404.

[0075] In this embodiment, the housing 40 includes a first housing 402 and a second housing 404. The cross-sections of the first housing 402 and the second housing 404 along the direction perpendicular to the axial direction are both semi-circular. The connecting ends of the first housing 402 and the second housing 404 are provided with connecting surfaces and are fastened together by bolts to form a receiving cavity.

[0076] Furthermore, the first housing 402 and the second housing 404 can adopt the same structure, and then the first housing 402 and the second housing 404 are joined together radially to form housing 40. Setting them to have the same structure makes it easier to install, maintain and replace.

[0077] Furthermore, the first housing 402 and the second housing 404 can adopt different structures, and then the first housing 402 and the second housing 404 are joined together radially to form housing 40. The first housing 402 and the second housing 404 can be designed with different structures according to the type of coupling and the application scenario, so as to expand the application range of the coupling.

[0078] Specifically, the first housing 402 and the second housing 404 are used in pairs, with their radial ends being fixed surfaces. Bolt mounting holes are drilled on the fixed surfaces for mounting bolts.

[0079] Specifically, when coupling 1 is a serpentine spring coupling, the connecting element is a serpentine spring 30, which is sleeved on the protruding teeth 16 on the first body 101 and the second body 201. The housing 40 includes a first housing 402 and a second housing 404. Both the first housing 402 and the second housing 404 have semi-circular cross-sections perpendicular to the axial direction. The first end of the first coupling 10 and the first end of the second coupling 20 are provided with protruding teeth 16. A serpentine spring 30, bent from spring steel plate in a serpentine shape, is installed into the groove between the two protruding teeth 16, and then the first housing 402 and the second housing 404 are fixed with bolts. In this way, the prime mover main shaft rotates, driving the first coupling 10 at the input end to rotate. The serpentine spring 30 then drives the second coupling 20 to rotate, thereby driving the driven main shaft, which is fixed to the second coupling 20, to rotate, thus realizing power transmission.

[0080] Specifically, when the coupling 1 is a hydraulic coupling, the first body 101 includes a first cavity 104, a first oil filling hole 106, and a first oil drain hole 108, both of which are connected to the first cavity 104. The coupling 1 is connected and fixed to the main shafts of the prime mover and the driven mover by hydraulic action. Lubricating oil is injected into the first cavity 104 through the first oil filling hole 106, and the first oil drain hole 108 is used for pressure relief. The first oil filling hole 106 and the first oil drain hole 108 are located on the side wall of the first body 101 and are located on the first body 101 outside the housing 40. The first oil filling hole 106 is used to install an oil filling valve; the first oil drain hole 108 is used to install an oil drain valve. In the non-working state, the inner diameter of the first coupling body 10 is larger than the diameter of the connected main shaft, and the first coupling body 10 can be installed on the connected main shaft. The first cavity 104 is filled with grease, the drain valve is closed, and the grease in the first cavity 104 is pressurized through the filler valve. The inner hole of the first coupling 10 contracts under the pressure of the grease, thus tightly holding the connected spindle and preventing relative slippage, thereby realizing the transmission function.

[0081] Further, the second main body 201 includes a second cavity 202, a second oil filling hole 204, and a second oil drain hole 206, both of which are connected to the second cavity 202. The hydraulic coupling is fixedly connected to the main shafts of the prime mover and the driven mover by hydraulic action. Lubricating oil is injected into the second cavity 202 through the second oil filling hole 204, and the second oil drain hole 206 is used for pressure relief. The second oil filling hole 204 and the second oil drain hole 206 are located on the side wall of the second main body 201 and are located on the second main body 201 outside the housing 40. The second oil filling hole 204 is used to install an oil filling valve; and the second oil drain hole 206 is used to install an oil drain valve. In the non-working state, the inner diameter of the second coupling 20 is larger than the diameter of the connected main shaft, and the second coupling 20 can be installed on the connected main shaft. The second cavity 202 is filled with grease, the drain valve is closed, and the grease in the second cavity 202 is pressurized through the filling valve. The inner hole of the second coupling 20 contracts under the pressure of the grease, thus tightly holding the connected main shaft and preventing relative slippage, thereby realizing the transmission function.

[0082] Furthermore, the first body 101 and the second body 201 of the hydraulic coupling are respectively provided with mounting grooves 14, which are used to install O-ring gaskets.

[0083] Specifically, during installation, the oil filling valve, oil drain valve, and O-ring gasket are installed on the first coupling 10 and the second coupling 20. The first flange 60, the second flange 70, and the gasket 50 are fitted onto the first coupling 10 and then installed on the main shaft of the connected equipment. The second coupling 20 is then installed on the main shaft of the other connected equipment. Grease is then injected into the first coupling 10 and the second coupling 20 and pressurized to fix them together with the main shaft of the connected equipment. The first coupling 10 and the second coupling 20 are aligned, and after adjusting coaxiality and clearance parameters to meet requirements, the serpentine spring 30 is installed. The oil filling plug is installed in the oil filling part 412 of the housing 40. Anaerobic sealant is applied to the fixing surface of the housing 40, the mounting surface of the gasket 50, and the cylindrical surface of the positioning stop 12. Anaerobic sealant is also applied to the outer end face of the positioning flange 102 of the gasket 50 of the first coupling 10. The first housing 402 and the second housing 404 are positioned and mounted on the second coupling 20 using a stop joint, and then secured together with mounting bolts. The inner and outer fixing surfaces of the sealing gasket 50 are tightly fitted against the end faces of the housing 40 and the flange end faces of the first coupling 10, respectively. The bolt mounting holes on the first flange 60 and the second flange 70 are aligned with the corresponding bolt mounting holes on the sealing gasket 50, and the bolts are installed, pressing the sealing surface of the sealing gasket 50 tightly. This forms a sealed cavity inside the housing 40. The oil filler plug is opened, and an appropriate amount of liquid lubricating oil is injected before tightening the plug. The coupling 1 is now installed. The first coupling 10, the serpentine spring 30, and the second coupling 20 act as transmission components, transmitting power from the prime mover to the driven mover. The housing 40, the sealing gasket 50, the first flange 60, and the second flange 70 form a sealed receiving cavity, which, after being filled with lubricating oil, serves as a support system for the operation of the coupling 1.

[0084] Furthermore, when coupling 1 is a pin coupling, the connecting element is an elastic pin; when coupling 1 is a flange coupling, the connecting element is a bolt; when coupling 1 is a jaw coupling, the connecting element is a jaw, and generally the jaw, the first coupling body 10, and the second coupling body 20 are designed as an integral structure; when coupling 1 is a cross-slider coupling, the connecting element is a cross-slider.

[0085] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, unless otherwise expressly specified and limited. The terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0086] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A coupling, characterized in that The coupling comprises: a first coupling body and a second coupling body; a connecting piece for connecting the first coupling body and the second coupling body; a housing comprising a receiving cavity and an oil injection portion in communication with the receiving cavity, part of the first coupling body and part of the second coupling body, and the connecting piece being arranged in the receiving cavity; the housing further comprises: a first protruding rib arranged on the inner wall of the housing; and a second protruding rib arranged on the inner wall of the housing; wherein the first protruding rib and the second protruding rib are staggered on the inner wall of the housing; the first protruding rib is arranged to extend along the circumferential direction of the housing, and the second protruding rib is arranged to extend along the axial direction of the housing; the first protruding rib is in a plurality, and the plurality of first protruding ribs are uniformly distributed along the circumferential direction of the housing on the inner wall of the receiving cavity; the second protruding rib is in a plurality, and the plurality of second protruding ribs are uniformly distributed along the axial direction of the housing; the housing further comprises: a mounting portion arranged at one end of the housing; a positioning portion arranged at the other end of the housing, the positioning portion being connected with the second coupling body; and a sealing gasket connected with the mounting portion, the sealing gasket being used for sealing the housing and the first coupling body; the first coupling body comprises: a first main body; and a positioning flange arranged on the first main body, the positioning flange being located on the circumferential side wall of the first main body, and the sealing gasket being connected with the positioning flange; the sealing gasket comprises: a first connecting portion comprising a first connecting hole; a transition portion having one end connected with the first connecting portion; and a second connecting portion connected with the other end of the transition portion; wherein the sealing gasket is in an integral structure; the second coupling body comprises: a second main body; and a positioning stopper arranged on the second main body, the positioning stopper extending along the circumferential direction of the second main body, and the positioning portion being arranged in the positioning stopper.

2. The coupling according to claim 1, characterized in that Further comprising: a cooling fin arranged on the outer wall of the housing.

3. The coupling of claim 1, wherein, Further comprising: a first flange connected with the first connecting portion and the housing; a second flange connected with the second connecting portion and the positioning flange.

4. The coupling according to claim 3, wherein: the inner ring of the first flange is provided with a rounded corner structure; the outer ring of the second flange is provided with a rounded corner structure; the cross-sectional shape of the sealing gasket is in a wave shape.

5. The coupling according to any one of claims 2 to 4, wherein: a first housing and a second housing are connected to enclose the receiving cavity, the oil injection portion is arranged on one of the first housing and the second housing.

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