Flywheel assembly and flange
Through the combination of non-circular cross-sectional design and strain gauge, the cumbersome assembly and stability problems of existing flywheel components are solved, and efficient and stable fitness equipment connections and fitness effect monitoring are achieved.
Patent Information
- Application Number
- CN202422305349.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-22
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-22
AI Technical Summary
The assembly of existing flywheel components is complicated, with poor reliability and stability, and the torque of the internal magnetron device cannot be detected, resulting in poor fitness results.
The flange perforation and assembly shaft fixing section design with non-circular cross-section is adopted, which eliminates screw fixation and combines the strain gauge to detect torque to achieve stable connection between assembly shaft and flange and torque detection.
The assembly process is simplified, the reliability and stability of flywheel components are improved, and the actual fitness power of users can be accurately obtained and the fitness effect is improved.
Smart Images
Figure CN223120506U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fitness equipment, and particularly relates to a flywheel assembly and a flange. Background Art
[0002] A flywheel assembly for fitness equipment generally includes an internal magnetic control device, a flywheel, a flange, a bearing and an assembly shaft. The flange is used to fixedly mount one end of the assembly shaft on the internal magnetic control device, and the bearing is used to rotatably mount the other end of the assembly shaft on the flywheel. In this way, the internal magnetic control device is suspended in the flywheel cavity of the flywheel by the mutual cooperation of the flange, the bearing and the assembly shaft, so that the flywheel can be driven to rotate relative to the internal magnetic control device to obtain resistance. In the prior art, the cross sections of the flange hole of the flange and the part of the assembly shaft located in the flange hole are both circular. In order to prevent the assembly shaft from rotating relative to the flange, the prior art method is to provide a laterally extending screw hole in the flange, and the inner end of a screw is screwed into the screw hole of the flange and abuts against the assembly shaft. For example, the solution disclosed in the attached Figure 3 of the Chinese utility model patent with the authorization publication number of CN16258932U is the prior art method. The problems of this method are as follows: First, since the inner end of the screw needs to abut against the assembly shaft by being screwed into the screw hole of the flange, the assembly of the flywheel assembly in the prior art is cumbersome and the efficiency is low. Second, if the inner end of the screw does not abut against the assembly shaft, when the user drives the flywheel to rotate, the assembly shaft will still rotate relative to the flange, and as the use time of the fitness equipment increases, the screw may become loose, and further the inner end of the screw cannot abut against the assembly shaft, that is, the reliability and stability of the flywheel assembly in the prior art are poor. In addition, the flange in the prior art is a pure mechanical structure, and when the user drives the flywheel to rotate, the flange cannot detect the torque received by the internal magnetic control device. Summary of the Utility Model
[0003] The utility model provides a flywheel assembly and a flange. Without using a screw, the assembly shaft of the flywheel assembly of the utility model will not rotate relative to the flange.
[0004] In the first aspect, the cross-sectional shapes of the flange through-hole of the flange of the flywheel assembly and the flange fixing section of the assembly shaft are both non-circular. After the flange is sleeved on the flange fixing section of the assembly shaft, the assembly shaft will not rotate relative to the flange. Compared with the prior art, in the flywheel assembly of the utility model, since the screw is omitted, it is not only beneficial to simplify the structure of the flywheel assembly, reduce the assembly process of the flywheel assembly and improve the assembly efficiency, but also as the use time of the fitness equipment increases, there is no risk that the assembly shaft rotates relative to the flange, so that the flywheel assembly of the utility model has higher reliability and stability.
[0005] In a second aspect, the flange is provided with at least one strain gauge. When the user drives the flywheel of the flywheel assembly to rotate relative to the internal magnet control device, the strain gauge can detect the torque received by the internal magnet control device. According to this torque, the actual power when the user drives the flywheel to rotate can be obtained, which is beneficial to help the user achieve a better fitness effect.
[0006] To achieve the content of at least one of the above aspects, the technical solution adopted by the present utility model is: a flywheel assembly, which includes:
[0007] An internal magnet control device, wherein the internal magnet control device has a device perforation;
[0008] A flywheel, wherein the flywheel has a flywheel cavity and a flywheel perforation communicating with the flywheel cavity;
[0009] A flange, wherein the flange has a flange perforation, the cross-sectional shape of the flange perforation is non-circular, and the flange is fixedly installed on the internal magnet control device;
[0010] At least one bearing, wherein the bearing has a bearing perforation, and the bearing is arranged on the flywheel in such a way that the outer side of the bearing of the bearing fits against the inner wall of the flywheel for forming the flywheel perforation; and
[0011] An assembly shaft, wherein the assembly shaft has a flange fixing section, the cross-sectional shape of the flange fixing section is non-circular. One end of the assembly shaft passes through the device perforation of the internal magnet control device and the flange perforation of the flange, and the flange is sleeved on the flange fixing section of the assembly shaft to prevent relative rotation between the assembly shaft and the flange. The other end of the assembly shaft passes through the bearing perforation of the bearing, and the bearing is arranged on the assembly shaft in such a way that the inner side of the bearing of the bearing fits against the peripheral wall of the assembly shaft, wherein the internal magnet control device is suspended in the flywheel cavity of the flywheel.
[0012] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the flange is a "D" shape, and the cross-sectional shape of the flange fixing section of the assembly shaft is a "D" shape.
[0013] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the flange is a "square" shape, and the cross-sectional shape of the flange fixing section of the assembly shaft is a "square" shape.
[0014] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the flange is a runway shape, and the cross-sectional shape of the flange fixing section of the assembly shaft is a runway shape.
[0015] In an alternative example of the present utility model, opposite ends of the flange are respectively fixedly mounted to the inner magnetron device by a stud.
[0016] In an alternative example of the present utility model, the flywheel assembly includes a nut and a circlip. The nut is screwed onto one end of the assembly shaft outside the flange, and the circlip is clamped onto the other end of the assembly shaft outside the bearing.
[0017] The present utility model also provides a flange, which includes:
[0018] A flange body, wherein the flange body includes a shaft mounting portion and at least one device mounting arm integrally extending outward from the shaft mounting portion. The shaft mounting portion has a flange through-hole; and
[0019] At least one strain gauge, wherein the strain gauge is mounted on the device mounting arm.
[0020] In an alternative example of the present utility model, the width direction of the strain gauge is consistent with the extending direction of the flange through-hole of the shaft mounting portion.
[0021] In an alternative example of the present utility model, the flange body includes two device mounting arms, and the two device mounting arms respectively extend outward from opposite sides of the shaft mounting portion. The number of strain gauges is two, and the two strain gauges are respectively mounted on the two device mounting arms.
[0022] In an alternative example of the present utility model, the cross-sectional shape of the flange through-hole of the shaft mounting portion of the flange is non-circular.
[0023] The present utility model also provides a flywheel assembly, which includes:
[0024] An inner magnetron device, wherein the inner magnetron device has a device through-hole;
[0025] A flywheel, wherein the flywheel has a flywheel cavity and a flywheel through-hole communicating with the flywheel cavity;
[0026] A flange, wherein the flange includes a flange body and at least one strain gauge. The flange body includes a shaft mounting portion and at least one device mounting arm integrally extending outward from the shaft mounting portion. The shaft mounting portion has a flange through-hole, and the strain gauge is mounted on the device mounting arm. The device mounting arm is mounted to the inner magnetron device;
[0027] At least one bearing, wherein the bearing has a bearing perforation, and the bearing is disposed on the flywheel in such a manner that the outer side of the bearing of the bearing abuts against the inner wall of the flywheel for forming the flywheel perforation; and
[0028] An assembly shaft, wherein one end of the assembly shaft passes through the device perforation of the inner magnetron device and the flange perforation of the flange, the other end of the assembly shaft passes through the bearing perforation of the bearing, and the bearing is disposed on the assembly shaft in such a manner that the inner side of the bearing of the bearing abuts against the peripheral wall of the assembly shaft, wherein the inner magnetron device is suspended in the flywheel cavity of the flywheel.
[0029] In an alternative example of the present utility model, the width direction of the strain gauge is consistent with the extending direction of the flange perforation of the shaft body mounting portion.
[0030] In an alternative example of the present utility model, the flange body includes two device mounting arms, the two device mounting arms respectively extend outward from opposite sides of the shaft body mounting portion, wherein the number of the strain gauges is two, and the two strain gauges are respectively mounted on the two device mounting arms.
[0031] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the shaft body mounting portion of the flange is non-circular, wherein the assembly shaft has a flange fixing section, the cross-sectional shape of the flange fixing section is non-circular, and the shaft body mounting portion of the flange is sleeved on the flange fixing section of the assembly shaft to prevent relative rotation between the assembly shaft and the flange.
[0032] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the shaft body mounting portion of the flange is "D"-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is "D"-shaped.
[0033] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the shaft body mounting portion of the flange is "square"-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is "square"-shaped.
[0034] In an alternative example of the present utility model, the cross-sectional shape of the flange perforation of the shaft body mounting portion of the flange is runway-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is runway-shaped.
[0035] In an alternative example of the present utility model, opposite ends of the flange are respectively fixedly mounted on the inner magnetron device through a stud.
[0036] In an alternative example of the present utility model, the flywheel assembly includes a nut and a snap ring. The nut is screwed onto one end of the assembly shaft outside the flange, and the snap ring is clamped onto the other end of the assembly shaft outside the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 FIG. is a schematic cross-sectional view in one direction of a flywheel assembly according to a preferred embodiment of the present utility model.
[0038] Figure 2 FIG. is a three-dimensional schematic view from one perspective of a partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model.
[0039] Figure 3 FIG. is a three-dimensional schematic view from another perspective of the partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model.
[0040] Figure 4 FIG. is a schematic cross-sectional view in a three-dimensional perspective of the partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model.
[0041] Figure 5 FIG. is an exploded schematic view of the partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model.
[0042] Figure 6 FIG. is a schematic cross-sectional view in one direction of a flywheel assembly according to another preferred embodiment of the present utility model.
[0043] Figure 7 FIG. is a three-dimensional schematic view from one perspective of a partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model.
[0044] Figure 8 FIG. is a schematic cross-sectional view in a three-dimensional perspective of the partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model.
[0045] Figure 9 FIG. is an exploded schematic view of the partial structure of the flywheel assembly according to the above-mentioned preferred embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0046] Before describing any embodiments of the present invention in detail, it should be understood that the present invention is not limited in its application to the details of the construction and arrangement of components set forth in the following description or illustrated in the following drawings. The present invention is capable of other embodiments and of being practiced or carried out in various ways. Additionally, it should be understood that the language and terminology used herein are for the purpose of description and should not be regarded as limiting. As used herein, the terms "comprising" or "having" and their variants are intended to cover the listed items and their equivalents as well as additional items. Unless otherwise specified or limited, the terms "mounted," "connected," "supported," and "coupled" and their variants are used broadly and cover both direct and indirect mounting, connection, support, and coupling. Further, "connected" and "coupled" are not limited to physical or mechanical connection or coupling.
[0047] Moreover, in the first aspect, in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention; in the second aspect, the term "a" should be understood as "at least one" or "one or more." That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "a" should not be construed as limiting the quantity.
[0048] Referring to the accompanying drawings of the present invention application Figures 1 to 5 In the following description, a flywheel assembly according to a preferred embodiment of the present invention will be disclosed and described, wherein the flywheel assembly includes an internal magnetic control device 10, a flywheel 20, a flange 30, at least one bearing 40, and an assembly shaft 50.
[0049] Specifically, the internal magnet control device 10 has a device perforation 101. The specific structure of the internal magnet control device 10 is not limited in the flywheel assembly of the present utility model. For example, the internal magnet control device 10 may include a first housing 11, a second housing 12, at least one arc-shaped swing arm 13, and at least one set of magnetic elements 14. The first housing 11 and the second housing 12 are installed with each other. Opposite sides of one end of the swing arm 13 are respectively rotatably installed on the edge of the first housing 11 and the edge of the second housing 12. The other end of the swing arm 13 can be driven. In this way, the swing arm 13 can swing relative to the first housing 11 and the second housing 12. One set of the magnetic elements 14 is arranged outside the swing arm 13 to allow the swing arm 13 to swing synchronously with one set of the magnetic elements 14. In a specific example of the flywheel assembly, the internal magnet control device 10 includes two swing arms 13 and two sets of magnetic elements 14. The two swing arms 13 are symmetrically arranged, and each swing arm 13 is respectively provided with one set of magnetic elements 14. For example, the two swing arms 13 can be arranged in an axisymmetric manner or in a centrosymmetric manner.
[0050] Refer to the attached Figure 4 , the flywheel 20 has a flywheel cavity 201 and a flywheel perforation 202 communicating with the flywheel cavity 201. The internal magnet control device 10 is suspended in the flywheel cavity 201 of the flywheel 20. The position of the flywheel perforation 202 of the flywheel 20 corresponds to the position of the device perforation 101 of the internal magnet control device 10.
[0051] In the flywheel assembly of the present utility model, continue to refer to the attached Figure 4 , the flywheel 20 includes a flywheel body 21 and a conductor 22. The flywheel body 21 further includes a wheel disc 211 and a wheel ring 212. The wheel ring 212 extends integrally outward from the edge of the wheel disc 211 to form the flywheel cavity 201 of the flywheel 20 between the wheel disc 211 and the wheel ring 212. The flywheel perforation 202 of the flywheel 20 is formed in the wheel disc 211. Wherein the conductor 22 is annular, and the conductor 22 is arranged on the flywheel body 21 in such a way that the outer wall of the conductor 22 is in contact with the inner wall of the wheel ring 212 of the flywheel body 21. In some examples of the flywheel assembly of the present utility model, the conductor 22 can be made of aluminum.
[0052] The inner magnetic control device 10 is suspended in the flywheel cavity 201 of the flywheel 20. The magnetic element 14 of the inner magnetic control device 10 is located inside the conductor 22 and adjacent to the position of the conductor 22. In this way, a part of the conductor 22 is located in the magnetic field environment of the magnetic element 14. When the flywheel 20 is driven to rotate relative to the inner magnetic control device 10, the conductor 22 cuts the magnetic induction lines of the magnetic element 14 to generate eddy currents, so that the flywheel 20 can obtain resistance. In this way, users can exercise through fitness equipment equipped with the flywheel assembly.
[0053] It can be understood that by allowing the swing arm 13 to drive the magnetic element 14 to swing, when the flywheel 20 is driven to rotate relative to the inner magnetic control device 10, the magnitude of the resistance obtained by the flywheel 20 can be adjusted. Specifically, after the swing arm 13 drives the magnetic element 14 to swing towards the direction close to the conductor 22, when the flywheel 20 is driven to rotate relative to the inner magnetic control device 10, the flywheel 20 obtains a larger resistance. After the swing arm 13 drives the magnetic element 14 to swing towards the direction away from the conductor 22, when the flywheel 20 is driven to rotate relative to the inner magnetic control device 10, the flywheel 20 obtains a smaller resistance.
[0054] The flywheel body 21 of the flywheel 20 may further include a driven ring 213. The driven ring 213 extends integrally outward from the middle of the wheel disc 211, and the driven ring 213 and the wheel ring 212 are located on opposite sides of the wheel disc 211. The force-bearing mechanism of the fitness equipment can be connected to the driven ring 213 of the flywheel body 21 by, but not limited to, a belt. In this way, users can drive the flywheel 20 to rotate relative to the inner magnetic control device 10 through the force-bearing mechanism of the fitness equipment.
[0055] The bearing 40 is arranged on the flywheel 20 in such a way that the outer side of the bearing 40 of the bearing fits against the inner wall of the flywheel 20 for forming the flywheel perforation 202. For example, based on the friction force generated between the outer side of the bearing 40 of the bearing and the inner wall of the flywheel 20 for forming the flywheel perforation 202, the bearing 40 can be arranged in the flywheel perforation 202 of the flywheel 20. It is worth mentioning that the number of the bearings 40 in the flywheel assembly of the present invention is not limited and is selected according to needs.
[0056] The flange 30 has a flange perforation 301, wherein the flange 30 is fixedly installed on the inner magnetic control device 10, and the position of the flange perforation 301 of the flange 30 corresponds to the position of the device perforation 101 of the inner magnetic control device 10. For example, in the attachment Figures 1 to 5In this specific example of the flywheel assembly of the present utility model shown, opposite ends of the flange 30 can be respectively locked to the inner magnetic control device 10 through a stud 60, so as to fixedly mount the flange 30 on the inner magnetic control device 10. Specifically, opposite ends of the flange 30 respectively have a stud perforation 302, the inner magnetic control device 10 has two threaded holes 102, positions of the respective stud perforations 302 of the flange 30 correspond to positions of the respective threaded holes 102 of the inner magnetic control device 10, one end of each stud 60 extends to the respective threaded holes 102 of the inner magnetic control device 10 after passing through the respective stud perforations 302 of the flange 30, and is screwed to the inner magnetic control device 10, so that the flange 30 is fixedly mounted on the inner magnetic control device 10 by each stud 60.
[0057] One end of the assembly shaft 50 passes through the device perforation 101 of the inner magnetic control device 10 and the flange perforation 301 of the flange 30, and the assembly shaft 50 is arranged not to be rotatable relative to the flange 30. The other end of the assembly shaft 50 passes through the bearing perforation 401 of the bearing 40, and the bearing 40 is arranged on the assembly shaft 50 in such a way that the inner side of the bearing of the bearing 40 abuts against the peripheral wall of the assembly shaft 50. In this way, the flange 30, the bearing 40 and the assembly shaft 50 cooperate with each other to suspend the inner magnetic control device 10 in the flywheel cavity 201 of the flywheel 20. Opposite ends of the assembly shaft 50 can be fixedly mounted on the frame of the fitness equipment. In this way, the assembly shaft 50 keeps the position of the inner magnetic control device 10 fixed relative to the frame of the fitness equipment, so that a user can drive the flywheel 20 to rotate relative to the inner magnetic control device 10 through the force-applying mechanism of the fitness equipment, so as to help the user achieve the purpose of fitness through the fitness equipment.
[0058] In the flywheel assembly of the present utility model, the cross-sectional shape of the flange perforation 301 of the flange 30 is non-circular, and the assembly shaft 50 has a flange fixing section 51 with a non-circular cross-sectional shape. The flange 30 is sleeved on the flange fixing section 51 of the assembly shaft 50 to prevent relative rotation between the assembly shaft 50 and the flange 30, that is, the assembly shaft 50 is arranged not to be able to rotate relative to the flange 30. Compared with the prior art, in the flywheel assembly of the present utility model, it is not necessary to use a screw to fix the assembly shaft 50 and the flange 30. Since the screw is omitted, it is not only beneficial to simplify the structure of the flywheel assembly, reduce the assembly process of the flywheel assembly and improve the assembly efficiency, but also as the use time of the fitness equipment increases, there is no risk of the assembly shaft 50 rotating relative to the flange 30, so that the flywheel assembly of the present utility model has higher reliability and stability.
[0059] In the attached Figures 1 to 5 In this specific example of the flywheel assembly of the present utility model shown, the cross-sectional shape of the flange perforation 301 of the flange 30 is "D"-shaped, and the cross-sectional shape of the flange fixing section 51 of the assembly shaft 50 is "D"-shaped. In this way, after the flange fixing section 51 of the assembly shaft 50 penetrates into the flange perforation 301 of the flange 30 and the flange 30 is sleeved on the flange fixing section 51 of the assembly shaft 50, the assembly shaft 50 is arranged not to be able to rotate relative to the flange 30.
[0060] Optionally, in other specific examples of the flywheel assembly of the present utility model, the cross-sectional shape of the flange perforation 301 of the flange 30 is "square"-shaped, and the cross-sectional shape of the flange fixing section 51 of the assembly shaft 50 is "square"-shaped. In this way, after the flange fixing section 51 of the assembly shaft 50 penetrates into the flange perforation 301 of the flange 30 and the flange 30 is sleeved on the flange fixing section 51 of the assembly shaft 50, the assembly shaft 50 is arranged not to be able to rotate relative to the flange 30. Or, the cross-sectional shape of the flange perforation 301 of the flange 30 is runway-shaped, and the cross-sectional shape of the flange fixing section 51 of the assembly shaft 50 is runway-shaped. In this way, after the flange fixing section 51 of the assembly shaft 50 penetrates into the flange perforation 301 of the flange 30 and the flange 30 is sleeved on the flange fixing section 51 of the assembly shaft 50, the assembly shaft 50 is arranged not to be able to rotate relative to the flange 30.
[0061] Refer to the attached Figure 1, the flywheel assembly further includes a nut 70 and a snap ring 80. The nut 70 is screwed onto one end of the assembly shaft 50 outside the flange 30, and the snap ring 80 is clamped onto the other end of the assembly shaft 50 outside the bearing 40. In this way, it is beneficial to ensure the structural stability of the flywheel assembly.
[0062] Appendix Figures 1 to 5 The assembly process of the flywheel assembly of the present invention shown in the appendix can be as follows: First, the opposite ends of the flange 30 are respectively installed on the inner magnetic control device 10 through the stud 60, and the bearing 40 is installed in the flywheel perforation 202 of the flywheel 20; Second, a nut 70 is screwed onto one end of the assembly shaft 50 after passing through the device perforation 101 of the inner magnetic control device 10 and the flange perforation 301 of the flange 30 in sequence. At this time, the flange fixing section 51 of the assembly shaft 50 penetrates into the flange perforation 301 of the flange 30 to sleeved the flange 30 on the flange fixing section 51 of the assembly shaft 50. In this way, the assembly shaft 50 will not rotate relative to the flange 30 and the inner magnetic control device 10; Then, a snap ring 80 is clamped after passing through the bearing perforation 401 of the bearing 40 at the other end of the assembly shaft 50 to complete the assembly of the flywheel assembly. It can be seen that in the flywheel assembly of the present invention, only by allowing the flange fixing section 51 of the assembly shaft 50 to penetrate into the flange perforation 301 of the flange 30 and sleeved the flange 30 on the flange fixing section 51 of the assembly shaft 50, the rotation of the assembly shaft 50 relative to the flange 30 and the inner magnetic control device 10 can be prevented, and there is no need to use a screw rod to fix the assembly shaft 50 and the flange 30. In this way, it is not only beneficial to simplify the structure of the flywheel assembly, reduce the assembly process of the flywheel assembly and improve the assembly efficiency, but also as the use time of the fitness equipment increases, there is no risk of the assembly shaft 50 rotating relative to the flange 30, so that the flywheel assembly of the present invention has higher reliability and stability.
[0063] Appendix Figures 6 to 9 A flywheel assembly according to another preferred embodiment of the present invention is shown. Different from the flywheel assembly shown in the appendix Figures 1 to 5 In the specific example of the flywheel assembly shown in the appendix Figures 6 to 9 When the user drives the flywheel 20 to rotate relative to the inner magnetic control device 10 through the force application mechanism of the fitness equipment, the flange 30 is used to detect the torque received by the inner magnetic control device 10. According to this torque, the actual power when the user drives the flywheel 20 to rotate can be obtained, which is beneficial to help the user obtain a better fitness effect.
[0064] Specifically, the flange 30 includes a flange body 31 and at least one strain gauge 32. The flange body 31 includes a shaft body mounting portion 311 and at least one device mounting arm 312 integrally extending outward from the shaft body mounting portion 311. The flange perforation 301 is formed in the shaft body mounting portion 311. In this way, the shaft body mounting portion 311 of the flange body 31 is sleeved on one end of the assembly shaft 50, and the device mounting arm 312 of the flange body 31 is mounted on the internal magnetic control device 10. For example, the device mounting arm 312 is mounted on the internal magnetic control device 10 through the stud 60, so that the assembly shaft 50 is prevented from rotating relative to the flange 30 and the internal magnetic control device 10. The strain gauge 32 is mounted on the device mounting arm 312, and the width direction of the strain gauge 32 is consistent with the extending direction of the flange perforation 301 of the shaft body mounting portion 311. When the user drives the flywheel 20 to rotate relative to the internal magnetic control device 10, the internal magnetic control device 10 has a tendency to rotate relative to the assembly shaft 50. This tendency causes the device mounting arm 312 of the flange body 31 of the flange 30 to undergo slight deformation. When the device mounting arm 312 undergoes slight deformation, it drives the strain gauge 32 to undergo slight deformation. In this way, the strain gauge 32 can detect the torque received by the internal magnetic control device 10, so that the actual power when the user drives the flywheel 20 to rotate can be obtained subsequently, which is beneficial to helping the user obtain a better fitness effect.
[0065] It is worth mentioning that the specific manner in which the strain gauge 32 is mounted on the device mounting arm 312 of the flange body 31 is not limited in the flywheel assembly of the present invention. For example, in Figures 6 to 9 this specific example of the flywheel assembly of the present invention shown in the appendix, the strain gauge 32 can be bonded to the device mounting arm 312 by glue to mount the strain gauge 32 on the device mounting arm 312 of the flange body 31. In other examples of the flywheel assembly of the present invention, the strain gauge 32 can be locked to the device mounting arm 312 of the flange body 31 by screws to mount the strain gauge 32 on the device mounting arm 312 of the flange body 31.
[0066] Continue to refer to the appendix Figures 6 to 9, in this specific example of the flywheel assembly of the present utility model, the flange body 31 includes two device mounting arms 312. The two device mounting arms 312 extend outward from opposite sides of the shaft body mounting portion 311 respectively. The two device mounting arms 312 are respectively mounted on the internal magnetron device 10 through a stud 60. The number of the strain gauges 32 is two, and the two strain gauges 32 are respectively mounted on the two device mounting arms 312. In this way, the actual power when the user drives the flywheel 20 to rotate can be accurately obtained.
[0067] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the drawings are only examples and do not limit the present utility model. The object of the present utility model has been fully and effectively achieved. The functions and structural principles of the present utility model have been demonstrated and explained in the embodiments. Without departing from the above principles, the embodiments of the present utility model can have any deformation or modification.
Claims
1. Flange, characterized in that, Comprising: A flange body, wherein the flange body includes a shaft mounting portion and at least one device mounting arm integrally extending outward from the shaft mounting portion, the shaft mounting portion having a flange through-hole; and At least one strain gauge, wherein the strain gauge is mounted on the device mounting arm.
2. The flange according to claim 1, wherein the width direction of the strain gauge is consistent with the extending direction of the flange through-hole of the shaft mounting portion.
3. The flange according to claim 1 or 2, wherein the flange body includes two of the device mounting arms, the two device mounting arms respectively extending outward from opposite sides of the shaft mounting portion, wherein the number of the strain gauges is two, and the two strain gauges are respectively mounted on the two device mounting arms.
4. The flange according to claim 1 or 2, wherein the cross-sectional shape of the flange through-hole of the shaft mounting portion of the flange is non-circular.
5. Flywheel assembly, characterized in that, Comprising: An internal magnetron device, wherein the internal magnetron device has a device through-hole; A flywheel, wherein the flywheel has a flywheel cavity and a flywheel through-hole communicating with the flywheel cavity; A flange, wherein the flange has a flange through-hole, the cross-sectional shape of the flange through-hole is non-circular, and the flange is fixedly mounted on the internal magnetron device; At least one bearing, wherein the bearing has a bearing through-hole, and the bearing is disposed on the flywheel in such a manner that the outer side of the bearing of the bearing abuts against the inner wall of the flywheel for forming the flywheel through-hole; and An assembly shaft, wherein the assembly shaft has a flange fixing section, the cross-sectional shape of the flange fixing section is non-circular, one end of the assembly shaft passes through the device through-hole of the internal magnetron device and the flange through-hole of the flange, and the flange is sleeved on the flange fixing section of the assembly shaft to prevent relative rotation between the assembly shaft and the flange, the other end of the assembly shaft passes through the bearing through-hole of the bearing, and the bearing is disposed on the assembly shaft in such a manner that the inner side of the bearing of the bearing abuts against the peripheral wall of the assembly shaft, wherein the internal magnetron device is suspended in the flywheel cavity of the flywheel.
6. The flywheel assembly according to claim 5, wherein the cross-sectional shape of the flange through-hole of the flange is "D"-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is "D"-shaped.
7. The flywheel assembly according to claim 5, wherein the cross-sectional shape of the flange through-hole of the flange is "square"-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is "square"-shaped.
8. The flywheel assembly according to claim 5, wherein the cross-sectional shape of the flange through-hole of the flange is runway-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is runway-shaped.
9. The flywheel assembly according to any one of claims 5 to 8, wherein opposite ends of the flange are respectively fixedly mounted on the internal magnetron device by a stud.
10. The flywheel assembly according to any one of claims 5 to 8, wherein the flywheel assembly includes a nut and a snap ring, the nut is screwed onto one end of the assembly shaft outside the flange, and the snap ring is clamped onto the other end of the assembly shaft outside the bearing.
11. Flywheel assembly, characterized in that, Comprising: An internal magnetic control device, wherein the internal magnetic control device has a device perforation; A flywheel, wherein the flywheel has a flywheel cavity and a flywheel perforation communicating with the flywheel cavity; A flange, wherein the flange includes a flange body and at least one strain gauge, the flange body includes a shaft mounting portion and at least one device mounting arm integrally extending outward from the shaft mounting portion, the shaft mounting portion has a flange perforation, the strain gauge is mounted on the device mounting arm, and the device mounting arm is mounted on the internal magnetic control device; At least one bearing, wherein the bearing has a bearing perforation, and the bearing is arranged on the flywheel in such a way that the outer side of the bearing of the bearing abuts against the inner wall of the flywheel for forming the flywheel perforation; And An assembly shaft, wherein one end of the assembly shaft passes through the device perforation of the internal magnetic control device and the flange perforation of the flange, the other end of the assembly shaft passes through the bearing perforation of the bearing, and the bearing is arranged on the assembly shaft in such a way that the inner side of the bearing of the bearing abuts against the peripheral wall of the assembly shaft, and the internal magnetic control device is suspended in the flywheel cavity of the flywheel.
12. The flywheel assembly according to claim 11, wherein the width direction of the strain gauge is consistent with the extending direction of the flange perforation of the shaft mounting portion.
13. The flywheel assembly according to claim 11, wherein the flange body includes two said device mounting arms, the two device mounting arms extend outward from opposite sides of the shaft mounting portion respectively, the number of the strain gauges is two, and the two strain gauges are respectively mounted on the two device mounting arms.
14. The flywheel assembly according to claim 11, wherein the cross-sectional shape of the flange perforation of the shaft mounting portion of the flange is non-circular, the assembly shaft has a flange fixing section, the cross-sectional shape of the flange fixing section is non-circular, and the shaft mounting portion of the flange is sleeved on the flange fixing section of the assembly shaft to prevent relative rotation between the assembly shaft and the flange.
15. The flywheel assembly according to claim 14, wherein the cross-sectional shape of the flange perforation of the shaft mounting portion of the flange is "D"-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is "D"-shaped.
16. The flywheel assembly according to claim 14, wherein the cross-sectional shape of the flange perforation of the shaft mounting portion of the flange is "square"-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is "square"-shaped.
17. The flywheel assembly according to claim 14, wherein the cross-sectional shape of the flange perforation of the shaft mounting portion of the flange is runway-shaped, and the cross-sectional shape of the flange fixing section of the assembly shaft is runway-shaped.
18. The flywheel assembly according to any one of claims 11 to 17, wherein opposite ends of the flange are fixedly mounted to the inner magnetron device by a stud respectively.
19. The flywheel assembly according to any one of claims 11 to 17, wherein the flywheel assembly includes a nut and a snap ring, the nut is screwed onto one end of the assembly shaft outside the flange, and the snap ring is clamped onto the other end of the assembly shaft outside the bearing.