Flange and connecting piece

Abstract

The flange is applied to a connecting piece and comprises a base plate and a sleeve, the sleeve is perpendicular to the base plate and connected with the base plate, the sleeve comprises a far end back to the base plate and a near end facing the base plate, the sleeve comprises an inner wall and an outer wall, the outer wall is provided with a first groove extending from the far end to the near end, and the first groove is in a spiral shape. The connecting piece comprises a main shaft, the main shaft is arranged on the outer side of the sleeve in a sleeving mode, the sleeve and the main shaft are connected through glue in a bonding mode, and the first groove is configured to store glue. The spiral first groove is formed in the outer wall of the sleeve, so that more glue is reserved in the first groove, the glue is evenly distributed in the first groove and can form a firm bonding layer, connection between the sleeve and the main shaft is more stable, the spiral design of the first groove enables the first groove to extend from the far end to the near end, and therefore the service life of the main shaft is prolonged. Furthermore, the glue in the axial direction of the sleeve is more uniformly distributed, the connection strength of the main shaft and the sleeve is further improved, and stable connection is realized.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a flange and a connecting piece. Background Art

[0002] Flanges are parts that connect shafts to each other and are used to connect pipe ends. Flange connections are easy to use and can withstand greater pressure. Couplings also contain flanges. The two ends of the main shaft in the coupling are fixedly connected to the flanges, and then connected to the shafts of other equipment through the flanges.

[0003] When connecting the spindle to the flange, the current common practice is to fasten the spindle and the flange with bolts. In this case, due to factors such as the accuracy of the screw hole processing, regular inspection and maintenance are required. In addition, when in motion, the bolt connection may be affected by various vibrations, which may lead to loosening and connection failure.

[0004] Nowadays, glue is increasingly used to connect the main shaft and the flange. However, when the main shaft and the flange are connected, they are squeezed very tightly against each other and the gap is very small, so the glue easily seeps out. The glue remaining between the main shaft and the flange is less and unevenly distributed, which affects the connection effect.

[0005] In view of this, it is indeed necessary to provide a flange and a connecting piece to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a flange with good glue adhesion.

[0007] To achieve the above-mentioned purpose, the utility model provides a flange, which is applied to a connecting piece, wherein the flange includes a chassis and a sleeve, the sleeve is perpendicular to the chassis and connected to the chassis, the sleeve includes a distal end facing away from the chassis and a proximal end facing the chassis, the sleeve includes an inner wall and an outer wall, and the outer wall is provided with a first groove extending from the distal end to the proximal end, and the first groove is spiral. The connecting piece includes a main shaft, which is sleeved on the outside of the sleeve, and the sleeve and the main shaft are bonded together by glue, and the first groove is configured to retain glue.

[0008] As a further improvement of the present invention, a second annular groove is provided on the outer wall of the proximal end.

[0009] As a further improvement of the present invention, a third groove is further provided on the outer wall. The third groove is located between the first groove and the second groove. The end of the first groove facing the proximal end is connected to the third groove.

[0010] As a further improvement of the present invention, a plurality of connecting holes are evenly arranged on the third groove, and the main shaft is provided with connecting holes corresponding one to one to the connecting holes on the third groove. Fasteners are passed through the main shaft and the connecting holes on the third groove to fix the main shaft to the flange.

[0011] As a further improvement of the present invention, the depths of the second groove and the third groove are greater than the depth of the first groove.

[0012] As a further improvement of the present invention, the portion of the outer wall between the second groove and the third groove is a frosted surface.

[0013] As a further improvement of the present invention, along the axial direction of the sleeve, the overall area of ​​the sleeve is a first area, the span of the first groove accounts for the area of ​​the sleeve is a second area, and the ratio of the second area to the first area is greater than or equal to 25% and less than or equal to 35%.

[0014] As a further improvement of the present invention, the chassis is provided with through holes, and the through holes are circumferentially arranged on the outer periphery of the sleeve.

[0015] As a further improvement of the present invention, a first step portion and a second step portion are provided on the side of the chassis facing away from the sleeve, the first step portion extends from the chassis into the sleeve, and the second step portion extends from the first step portion into the sleeve.

[0016] Another object of the present invention is to provide a connecting piece including the above-mentioned flange.

[0017] To achieve the above-mentioned purpose, the utility model provides a connecting piece, including the above-mentioned flange.

[0018] Compared with the prior art, the flange of the present invention is provided with a spiral first groove on the outer wall of the sleeve, so that more glue is retained in the first groove, the glue is evenly distributed in the first groove and can form a stronger bonding layer, making the connection between the sleeve and the main shaft more stable, and the spiral design of the first groove enables the first groove to extend from the distal end to the proximal end, thereby making the span of the glue distribution in the axial direction of the sleeve larger, further improving the connection strength between the main shaft and the sleeve, achieving a stable connection, and making the installation process more convenient and maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of a flange according to an embodiment of the present invention.

[0020] Figure 2 yes Figure 1A three-dimensional structural diagram of the flange from another angle is shown.

[0021] Figure 3 yes Figure 1 A cross-sectional view of the flange is shown.

[0022] Figure 4 It is a three-dimensional structural diagram of a connecting piece according to an embodiment of the present invention.

[0023] Figure 5 It is a partial cross-sectional view of a connecting piece according to an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 100 - flange, 110 - chassis, 111 - first step, 112 - second step, 113 - through hole, 120 - sleeve, 121 - distal end, 122 - proximal end, 123 - outer wall, 124 - inner wall, 125 - first groove, 126 - second groove, 127 - third groove, 130 - connecting hole;

[0026] 200-connecting parts, 210-spindle, 220-fasteners. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0029] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0030] This embodiment relates to a flange 100 and a connector 200 including the flange 100. Figures 4-5 As shown, in this embodiment, the connecting member 200 is a coupling, and the connecting member 200 includes a main shaft 210 and flanges 100 located at both ends of the main shaft 210 and fixedly connected to the main shaft 210. In other embodiments, the connecting member 200 can also be other types of connecting devices, and the present invention is not limited thereto.

[0031] In the existing connector 200, the main shaft 210 and the flange 100 are often bonded together using glue, that is, by using structural adhesive to connect the flange 100 and the main shaft 210. This evenly distributes pressure, thereby improving the strength and sealing of the connection between the two. However, when the main shaft 210 is sleeved outside the sleeve 120 of the flange 100, the gap between the main shaft 210 and the sleeve 120 of the flange 100 is extremely narrow, and they are pressed very tightly against each other, causing the glue to be easily squeezed out. Less glue remains between the sleeve 120 of the flange 100 and the main shaft 210, which affects the connection between the flange 100 and the main shaft 210 and makes it easy for the flange 100 to loosen.

[0032] See also Figures 1 to 3 As shown, in this embodiment, the flange 100 includes a chassis 110 and a sleeve 120, the sleeve 120 is connected to the chassis 110 and is perpendicular to the chassis 110, the sleeve 120 includes a distal end 121 facing away from the chassis 110 and a proximal end 122 facing the chassis 110, the sleeve 120 includes an inner wall 124 and an outer wall 123, the outer wall 123 is provided with a first groove 125 extending from the distal end 121 to the proximal end 122, the first groove 125 is spiral, the connecting member 200 includes a main shaft 210, the main shaft 210 is sleeved on the outside of the sleeve 120, the sleeve 120 and the main shaft 210 are bonded together by glue, and the first groove 125 of the spiral groove is configured to retain glue.

[0033] The first groove 125 provided on the outer wall 123 of the sleeve 120 helps the glue to be evenly distributed in the first groove 125 and form a stronger bonding layer, so that the connection between the sleeve 120 and the main shaft 210 is more stable. The spiral design of the first groove 125 allows the first groove 125 to extend from the distal end 121 to the proximal end 122, thereby making the span of the glue distribution in the axial direction of the sleeve 120 larger, further improving the connection strength between the main shaft 210 and the sleeve 120, achieving a stable connection, and making the installation process more convenient and maintenance more convenient.

[0034] In this embodiment, an annular second groove 126 is provided on the outer wall 123 of the proximal end 122. The second communication is located at the proximal end 122, that is, at the connection between the sleeve 120 and the chassis 110. The second groove 126 can retain some glue, thereby enhancing the connection strength between the proximal end 122 of the sleeve 120 and the main shaft 210. At the same time, when the flange 100 rotates at high speed, the stress at this point is relatively large. The provision of the second groove 126 adds a structural reinforcement area to this critical stress point. When the flange 100 rotates at high speed, the connection between the sleeve 120 and the chassis 110 will be subjected to large centrifugal forces and possible vibration stresses. The presence of the second groove 126 helps to disperse and resist these stresses, thereby improving the strength and durability of the overall structure of the flange 100.

[0035] In this embodiment, a third groove 127 is further provided on the outer wall 123 of the sleeve 120. The third groove 127 is located between the distal end 121 and the proximal end 122, and one end of the first groove 125 toward the proximal end 122 is connected to the third groove 127. The third groove 127 is located in the middle of the sleeve 120, so that in the axial direction of the sleeve 120, sufficient glue can be retained in the middle of the sleeve, thereby enhancing the adhesion of this part. At the same time, the third groove 127 can also disperse the stress of this part on the sleeve 120, making the sleeve 120 more resistant to deformation. In addition, by connecting the first groove 125 and the third groove 127, the fluidity of the glue in the first groove 125 and the third groove 127 can be increased, so that the glue is more evenly retained on the outer wall 123 of the sleeve 120.

[0036] Furthermore, a number of connection holes 130 are evenly distributed on the third groove 127. The main shaft 210 is provided with connection holes 130 that correspond one-to-one with the connection holes 130 on the third groove 127. Fasteners 220 pass through the connection holes 130 on the main shaft 210 and the connection holes 130 on the flange 100 to securely connect the main shaft 210 to the flange 100. To further strengthen the connection, the evenly distributed connection holes 130 on the third groove 127 and the main shaft 210 ensure more uniform force transfer between the main shaft 210 and the flange 100, avoiding localized stress concentration and thus improving the overall stability of the connection. The fasteners 220 pass through the corresponding connection holes 130 to form a mechanical lock, increasing the strength and reliability of the connection between the main shaft 210 and the flange 100, and enabling it to withstand greater external forces and vibrations.

[0037] A connecting hole 130 is also provided on the main shaft 210. The connecting holes 130 on the main shaft 210 are arranged in a one-to-one correspondence with the connecting holes 130 on the flange 100, and the specifications of the connecting holes 130 on the main shaft 210 and the flange 100 are consistent to ensure that the main shaft 210 and the flange 100 are stably and tightly connected.

[0038] In this embodiment, the fastener 220 is a rivet. In some other embodiments, the fastener 220 may also be other components such as a screw, and the present invention is not limited to this.

[0039] In this embodiment, the depth of the second groove 126 and the third groove 127 is greater than the depth of the first groove 125, so that more glue can be retained in the second groove 126 and the third groove 127, so that the connection strength of the sleeve 120 at the second groove 126 and the third groove 127 is greater, the stress it can withstand is greater, and the degree of deformation it can resist is greater.

[0040] In this embodiment, the portion of the outer wall 123 between the second groove 126 and the third groove 127 is a frosted surface. Compared to a smooth surface, a rough surface produces more tiny bumps and depressions during contact. These tiny irregularities increase the points of interaction between the contacting surfaces, significantly increasing the coefficient of friction between this area of ​​the sleeve 120 and the spindle 210. This means that under the same normal pressure, the frosted portion of the outer wall 123 of the sleeve 120 can generate greater friction, thereby enhancing the connection stability and transmission efficiency between the sleeve 120 and the spindle 210.

[0041] Furthermore, along the axial direction of the sleeve 120, the entire sleeve 120 has a first area, the span of the first groove 125 accounts for the second area of ​​the area of ​​the sleeve 120, and the ratio of the second area to the first area is greater than or equal to 25% and less than or equal to 35%. The presence of the first groove 125 provides a structural reinforcement for the sleeve 120. By controlling the span range of the first groove 125, that is, the second area, a longer stress dispersion path can be formed in the key stress-bearing area of ​​the sleeve 120. This helps to reduce stress concentration caused by excessive force on a single point, improves the overall load-bearing capacity of the sleeve 120, and at the same time, enhances the connection between the sleeve 120 and the main shaft 210 over a larger span.

[0042] In this embodiment, the chassis 110 is provided with through holes 113, which are arranged circumferentially on the periphery of the sleeve 120. The through holes 113 provided on the chassis 110 can make it easier to assemble and connect the chassis 110 with other structural parts. At the same time, the through holes 113 are arranged circumferentially on the chassis 110 along the periphery of the sleeve 120, so that when the flange 100 is connected to other components through the chassis 110, the force on the chassis 110 is more uniform.

[0043] In this embodiment, a first step portion 111 and a second step portion 112 are provided on the side of the chassis 110 facing away from the sleeve 120. The first step portion 111 extends from the chassis 110 into the sleeve 120, and the second step portion 112 extends from the first step portion 111 into the sleeve 120. Through the first step portion 111 and the second step portion 112 embedded in the chassis 110, the sleeve 120 can be more conveniently assembled and connected with structural parts of different sizes, thereby increasing the adaptability and versatility of the flange 100. This design also provides clear boundaries and identifications, which helps maintenance personnel to more quickly and accurately locate and disassemble parts that need to be repaired or replaced.

[0044] To sum up, the flange 100 of the present invention is provided with a spiral first groove 125 on the outer wall 123 of the sleeve 120, so that more glue is retained in the first groove 125, and the glue is evenly distributed in the first groove 125 and can form a stronger bonding layer, so that the connection between the sleeve 120 and the main shaft 210 is more stable, and the spiral design of the first groove 125 enables the first groove 125 to extend from the distal end 121 to the proximal end 122, thereby making the span of the glue distribution in the axial direction of the sleeve 120 larger, further improving the connection strength between the main shaft 210 and the sleeve 120, achieving a stable connection, and making the installation process more convenient and maintenance more convenient. The outer wall 123 is also provided with a second groove 126 and a third groove 127 to further strengthen the structural strength of the flange 100 and have good anti-deformation ability.

[0045] In the description of the present invention, it should be understood that the terms (if any) "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present application.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A flange, used for a connecting piece, characterized in that: The flange includes a chassis (110) and a sleeve (120), wherein the sleeve (120) is perpendicular to the chassis (110) and connected to the chassis (110), wherein the sleeve (120) includes a distal end (121) facing away from the chassis (110) and a proximal end (122) facing the chassis (110), wherein the sleeve (120) includes an inner wall (124) and an outer wall (123), wherein a first groove (125) extending from the distal end (121) to the proximal end (122) is provided on the outer wall (123), wherein the first groove (125) is spiral-shaped, and the connecting member includes a main shaft (210), wherein the main shaft (210) is sleeved on the outside of the sleeve (120), and the sleeve (120) and the main shaft (210) are bonded together by glue, and the first groove (125) is configured to retain the glue.

2. The flange according to claim 1, characterized in that An annular second groove (126) is provided on the outer wall (123) of the proximal end (122).

3. The flange according to claim 2, characterized in that A third groove (127) is further provided on the outer wall (123). The third groove (127) is located between the first groove (125) and the second groove (126). One end of the first groove (125) facing the proximal end (122) is connected to the third groove (127).

4. The flange according to claim 3, characterized in that A plurality of connection holes (130) are evenly arranged on the third groove (127), and the main shaft (210) is provided with connection holes (130) corresponding one-to-one to the connection holes (130) on the third groove (127). A fastener (220) passes through the main shaft (210) and the connection holes (130) on the third groove (127), so that the main shaft (210) is fixedly connected to the flange.

5. The flange according to claim 4, characterized in that The fastener (220) is a rivet.

6. The flange according to claim 3, characterized in that The depths of the second groove (126) and the third groove (127) are greater than the depth of the first groove (125), and the portion of the outer wall (123) between the second groove (126) and the third groove (127) is a frosted surface.

7. The flange according to any one of claims 1 to 6, characterized in that: Along the axial direction of the sleeve (120), the overall area of ​​the sleeve (120) is a first area, the span of the first groove (125) accounts for the area of ​​the sleeve (120) is a second area, and the ratio of the second area to the first area is greater than or equal to 25% and less than or equal to 35%.

8. The flange according to any one of claims 1 to 6, characterized in that: The chassis (110) is provided with through holes (113), and the through holes (113) are circumferentially arranged on the outer periphery of the sleeve (120).

9. The flange according to any one of claims 1 to 6, characterized in that: A first step portion (111) and a second step portion (112) are provided on a side of the chassis (110) facing away from the sleeve (120), wherein the first step portion (111) extends from the chassis (110) into the sleeve (120), and the second step portion (112) extends from the first step portion (111) into the sleeve (120).

10. A connector, characterized in that: The invention comprises the flange according to any one of claims 1 to 9.

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