A single body double flange coupling
The single-unit double-flange coupling, through its one-piece molding design and bolt fixing, solves the problems of complex structure and easy loosening of existing couplings, and achieves efficient torque transmission and anti-deformation effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUOYAN ZHIQU TECHNOLOGY (SHENZHEN) CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-12
AI Technical Summary
Existing couplings have complex structures, are prone to loosening after prolonged use, cannot effectively transmit torque, and are easily deformed under vertical axial shear force.
The single-unit double-flange coupling design integrates the first fixed plate, the second fixed plate, and the connecting shaft into one piece, and uses bolts and nuts for fastening to ensure torque transmission and prevent loosening, thereby increasing overall strength.
The structure is simplified, the torque transmission efficiency is improved, loosening is prevented, safety is enhanced, and deformation under vertical axial shear force is avoided.
Smart Images

Figure CN224352286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coupling technology, and in particular to a single-unit double-flange coupling. Background Technology
[0002] A coupling is a device that connects two shafts or a shaft and a rotating component, allowing them to rotate together during the transmission of motion and power. It also serves to prevent the connected components from bearing excessive loads during use, thus providing overload protection.
[0003] The existing couplings and their problems are as follows:
[0004] 1. Center-fastened flange coupling: Two flanged half-couplings are fastened together by bolts at the center of the shaft, and the hub is clamped by two flanges on both sides; it is connected to the motor's D-type output shaft by fastening screws; the fastening screws are connected to the motor's D-type output shaft by set screws, and the friction generated by the set screws prevents the output shaft from coming off, but there is a risk of loosening during long-term operation; at the same time, the torque transmission between the two half-couplings relies solely on the coaxial fastening screws, and the maximum torque that can be transmitted is limited.
[0005] 2. Hexagonal coupling: It transmits torque by matching the hexagonal outer edge with the internal hexagonal hole of the hub; it is connected to the motor's D-type output shaft by a set screw, and the friction generated by the set screw prevents the output shaft from coming off. However, there is a risk of loosening during long-term operation.
[0006] 3. Clamping type coupling: The output shaft is fastened by screws on the side of the linkage shaft, and the friction after fastening prevents the two sides from separating; the structure is complex, difficult to process, and has a large size.
[0007] 4. Rigid flange coupling: The two shafts are aligned by bolts through reamed holes; it is connected to the motor's D-type output shaft by fastening screws with set screws. The friction generated by the set screws prevents the output shaft from coming off, but there is a risk of loosening during long-term operation.
[0008] 5. Claw coupling: There is toothed meshing between the two half couplings; the structure is complex and the length of the coupling is increased, resulting in a longer shear force arm perpendicular to the axial direction.
[0009] In summary, existing couplings, which connect components in a combined manner, increase structural complexity. Furthermore, due to structural limitations, they cannot effectively transmit torque, and are prone to loosening over prolonged use. Utility Model Content
[0010] The purpose of this utility model is to provide a single-unit double-flange coupling that can solve the above-mentioned technical problems.
[0011] This utility model provides a single-unit double-flange coupling, comprising:
[0012] A first fixed disk for connection with a rotating component and a second fixed disk for connection with a driving component; the first fixed disk and the second fixed disk are connected by a connecting shaft;
[0013] A number of first fixing holes are provided on the first fixing plate, and a number of second fixing holes are provided on the second fixing plate;
[0014] The first fixed plate, the connecting shaft, and the second fixed plate are integrally formed.
[0015] As a further technical solution, it also includes:
[0016] Several mounting holes are provided on the first fixing plate; and each of the mounting holes corresponds to a number of second fixing holes.
[0017] As a further technical solution, the connecting shaft is provided with several connecting grooves; the several connecting grooves correspond to several mounting holes.
[0018] As a further technical solution, the axis passing through the center of several first fixing holes does not coincide with the axis passing through the center of several second fixing holes.
[0019] Preferably, the first fixing hole is provided with an internal thread.
[0020] As a further technical solution, an internal thread is provided in the second fixing hole.
[0021] As a further technical solution, it also includes: a central hole that passes through the first fixed plate, the connecting shaft, and the second fixed plate.
[0022] As a further technical solution, a number of first fixing holes are arranged circumferentially on the first fixing plate with the center of the first fixing plate as the point.
[0023] As a further technical solution, a number of second fixing holes are arranged circumferentially on the second fixing plate with the center of the second fixing plate as the point.
[0024] As a further technical solution, the distance between a plurality of first fixing holes is equal; the distance between a plurality of second fixing holes is equal.
[0025] The technical solution of this utility model connects the first fixed disk and the second fixed disk through a connecting shaft. After being connected to the rotating component and the driving component, it can effectively transmit the torque generated by the driving component to the rotating component. At the same time, the first fixed disk, the connecting shaft and the second fixed disk of this utility model are integrally formed, which reduces the complexity compared with the prior art. It will not loosen as the usage time increases. In addition, it can also ensure that the whole will not deform when subjected to vertical axial shear force, thus improving the overall safety. Attached Figure Description
[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0027] Figure 1 This is a perspective view of a single-unit double-flange coupling according to this utility model from one angle.
[0028] Figure 2 This is a perspective view of a single-unit double-flange coupling according to this utility model from another angle;
[0029] Figure 3 This is a structural schematic diagram of a single-unit double-flange coupling according to the present invention;
[0030] Figure 4 This is a structural schematic diagram of a single-unit double-flange coupling of this utility model in use.
[0031] Explanation of reference numerals in the attached figures:
[0032] 100-First fixed plate; 200-Second fixed plate; 300-Connecting shaft; 400-First fixing hole; 500-Second fixing hole; 600-Mounting hole; 700-Connecting groove; 800-Center hole; 901-Rotating component; 902-Drive component. Detailed Implementation
[0033] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] like Figure 1-4 As shown, the present invention proposes a single-unit double-flange coupling, comprising:
[0037] When the first fixed disk 100 and the second fixed disk 200 are connected, the first fixed disk 100 is connected to the rotating component 901, and the second fixed disk 200 is connected to the driving component 902. The first fixed disk 100 and the second fixed disk 200 are connected by a connecting shaft 300. When the driving component 902 operates, it can drive the second fixed disk 200 to rotate, and transmit torque to the first fixed disk 100 through the connecting shaft 300, which in turn drives the rotating component 901 to rotate. Furthermore, the first fixed disk 100, the connecting shaft 300, and the second fixed disk 200 are integrally formed, which increases the strength of the first fixed disk 100, the connecting shaft 300, and the second fixed disk 200, preventing loosening during use and improving overall strength.
[0038] A plurality of first fixing holes 400 are provided on the first fixing plate 100, and a plurality of second fixing holes 500 are provided on the second fixing plate 200. When the first fixing plate 100 is installed with the rotating component 901, the rotating component 901 and the plurality of first fixing holes 400 are fixed by passing the first fixing member through the rotating component 901 and the plurality of first fixing holes 400. When the second fixing plate 200 is installed with the driving component 902, the second fixing hole 500 and the driving component 902 are fixed by passing the second fixing member through the second fixing hole 500.
[0039] The technical solution of this utility model connects the first fixed disk 100 and the second fixed disk 200 through the connecting shaft 300. After being connected to the rotating component 901 and the driving component 902, it can effectively transmit the torque generated by the driving component 902 to the rotating component 901. At the same time, the first fixed disk 100, the connecting shaft 300 and the second fixed disk 200 of this utility model are integrally formed, which reduces the complexity compared with the prior art. It will not loosen with the increase of use time, and it can also ensure that the whole will not deform when subjected to vertical axial shear force, thus improving the overall safety.
[0040] like Figure 1-2 As shown, this utility model also includes a plurality of mounting holes 600, which are provided on the first fixing plate 100; and each of the mounting holes 600 corresponds to a plurality of second fixing holes 500; thus, during installation, the second fixing plate 200 can be installed first; that is, by inserting an electric screwdriver into the mounting holes 600, the second fixing component is operated to complete the installation of the second fixing plate 200 and the driving component 902; specifically, the second fixing component is preferably a bolt; the driving component 902 is provided with a rudder disk, and the rudder disk is provided with a plurality of third fixing holes corresponding to the plurality of second fixing holes 500 on the second fixing plate 200; after the bolt is passed through the second fixing holes 500, it is placed in the third fixing hole, and one end of the bolt is rotated by inserting an electric screwdriver into the mounting hole 600 to complete the use of the second fixing plate 200 for fixing the rudder disk;
[0041] Of course, the second fixing component can be a combination of nuts and bolts to fix the second fixing plate 200 to the rudder disk; or a thread compatible with the bolt can be provided in the third mounting hole 600 on the rudder disk; and then the second fixing plate 200 and the rudder disk can be fixed by bolts; of course, an internal thread is also provided in the second fixing hole 500; when the bolts connect the second fixing plate 200 and the rudder disk, they are also threaded to the second fixing hole 500 and the third fixing hole to improve the overall fixing strength;
[0042] Furthermore, the number of the second fixing holes 500, mounting holes 600, and the third fixing holes on the rudder disk depends on the actual situation. In this utility model, it is preferred to provide four second fixing holes 500, four mounting holes 600, and four third fixing holes. Simultaneously, the second fixing holes 500 are arranged circumferentially on the second fixing disk 200 with the center of the second fixing disk 200 as the center point; and the distance between the second fixing holes 500 is equal. Since the mounting holes 600 and the third fixing holes are both opposite to the second fixing holes 500, the distance between the mounting holes 600 and the distance between the third fixing holes are equal. This ensures that after fixing with bolts, each bolt can withstand the same force, improving bolt safety while ensuring the fixing strength between the second fixing disk 200 and the rudder disk.
[0043] like Figure 3 As shown, the connecting shaft 300 is provided with a plurality of connecting grooves 700; the plurality of connecting grooves 700 correspond to a plurality of mounting holes 600; when the second fixed plate 200 and the rudder disk are connected by bolts, the bolts are placed in the connecting grooves 700 on the connecting shaft 300; this can limit the position of the thread by the connecting grooves 700, and prevent the bolts from deforming under the influence of torque during subsequent rotation; thus improving the stability of the second fixed plate 200 and the rudder disk after installation.
[0044] In addition, the rudder is fixed to the drive component 902 by screws. After the rudder is installed, the screw heads will protrude from the rudder. Therefore, in this utility model, a center hole 800 is provided, which passes through the first fixed plate 100, the connecting shaft 300 and the second fixed plate 200. In this way, after the second fixed plate 200 is installed with the rudder, the screw heads are placed in the center hole 800 and will not affect the installation between the second fixed plate 200 and the rudder. At the same time, the screw heads can be manipulated by inserting a tool into the center hole 800, thereby adjusting the tightness between the rudder and the drive component 902 or disassembling and assembling the rudder and the drive component 902.
[0045] After the second fixed disk 200 is connected to the rudder disk, the first fixing member passes through the first fixing hole 400 on the rotating component 901 and the first fixed disk 100 to complete the fixing of the rotating component 901 and the first fixed disk 100. The first fixing member can be a combination of a bolt and a nut. The bolt is passed through the rotating component 901 and the first fixed disk 100 in sequence, and then the nut is connected to the bolt to complete the fixing between the first fixed disk 100 and the rotating component 901. Alternatively, an internal thread can be provided in the first fixing hole 400. In this way, when the bolt passes through the rotating component 901 in sequence, it is threaded into the first fixing hole 400 on the first fixed disk 100, thus completing the fixing of the first fixed disk. The rotating component 901 is fixed to the first fixed plate 100; preferably, the first fixed plate 100 is provided with four first fixing holes 400; and the rotating component 901 and the first fixed plate 100 are connected by four first fixing members; and the first fixing holes 400 are arranged circumferentially on the first fixed plate 100 with the center of the first fixed plate 100 as the center point; at the same time, the distance between the first fixing holes 400 is equal; in this way, after being fixed by bolts, it can be ensured that each bolt can withstand the same force, improving the bolt safety while ensuring the fixing strength between the first fixed plate 100 and the rotating component 901; in this utility model, the rotating component 901 is preferably a wheel hub.
[0046] like Figure 1 or Figure 2As shown, the axis passing through the center of several first fixing holes 400 does not coincide with the axis passing through the center of several second fixing holes 500; that is, the first fixing holes 400 and the second fixing holes 500 are staggered. In this way, when the drive component 902 is started, the torque can generate a certain angle to buffer the impact of the torque on the rotating component 901.
[0047] It should be noted that the dimensions of the first fixed plate 100 and the second fixed plate 200 in this utility model can be increased or decreased according to the dimensions of the rotating component 901 and the driving component 902; and the length of the connecting shaft 300 can also be increased or decreased according to actual usage needs; the specific details shall be based on the actual situation, and this utility model will not provide further explanation.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A single-unit double-flange coupling, characterized in that, include: A first fixed disk (100) for connection with the rotating component (901) and a second fixed disk (200) for connection with the driving component (902); the first fixed disk (100) and the second fixed disk (200) are connected by a connecting shaft (300); A plurality of first fixing holes (400) are provided on the first fixing plate (100), and a plurality of second fixing holes (500) are provided on the second fixing plate (200); The first fixed plate (100), the connecting shaft (300) and the second fixed plate (200) are integrally formed.
2. The single-unit double-flange coupling according to claim 1, characterized in that, Also includes: A plurality of mounting holes (600) are provided on the first fixing plate (100); and the plurality of mounting holes (600) correspond to the plurality of second fixing holes (500).
3. The single-unit double-flange coupling according to claim 2, characterized in that, The connecting shaft (300) is provided with a plurality of connecting grooves (700); the plurality of connecting grooves (700) correspond to a plurality of mounting holes (600).
4. The single-unit double-flange coupling according to claim 1, characterized in that, The axis passing through the center of several first fixing holes (400) does not coincide with the axis passing through the center of several second fixing holes (500).
5. The single-unit double-flange coupling according to claim 1, characterized in that, The first fixing hole (400) is provided with an internal thread.
6. The single-unit double-flange coupling according to claim 1, characterized in that, An internal thread is provided in the second fixing hole (500).
7. The single-unit double-flange coupling according to claim 1, characterized in that, Also includes: The center hole (800) passes through the first fixed plate (100), the connecting shaft (300), and the second fixed plate (200).
8. The single-unit double-flange coupling according to claim 1, characterized in that, A plurality of first fixing holes (400) are arranged circumferentially on the first fixing plate (100) with the center of the first fixing plate (100) as the center point.
9. The single-unit double-flange coupling according to claim 8, characterized in that, A plurality of second fixing holes (500) are arranged circumferentially on the second fixing plate (200) with the center of the second fixing plate (200) as the point.
10. The single-unit double-flange coupling according to claim 9, characterized in that, The distances between the first fixing holes (400) are equal; the distances between the second fixing holes (500) are equal.