CN211585054U

CN211585054U - Internal magnetic control flywheel resistance adjusting device

Info

Publication number: CN211585054U
Application number: CN201921626024.2U
Authority: CN
Inventors: 乔伟
Original assignee: Ningbo Daokang Intelligent Technology Co ltd
Current assignee: DEERKANG (SHANGHAI) SPORTS ARTICLES Co.,Ltd.
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-29
Anticipated expiration: 2029-09-27

Abstract

The utility model provides an interior magnetic control flywheel resistance adjusting device, include: the metal flywheel (1) rotates around the plastic chassis (3); the aluminum ring (2) is fixedly connected with the metal flywheel (1); the magnetic shoe (4) and the driving motor (20) are arranged on the plastic chassis (3); the driving motor (20) is connected with the reduction box (22) through a worm (18); the driving motor (20) can drive the magnetic shoe (4) to move. A turbine (19) is arranged on the plastic chassis (3); the worm wheel (19) is connected with the worm (18). The utility model discloses rational in infrastructure, convenient operation. The gap between the magnetic shoe and the aluminum ring on the metal flywheel is adjusted, so that the damping intensity generated by the interaction of the magnetic field intensity and the aluminum ring is adjusted, and the method is simple, reliable and low in cost.

Description

Internal magnetic control flywheel resistance adjusting device

Technical Field

The utility model relates to a body-building and sport equipment field specifically, relates to an interior magnetic control flywheel resistance adjusting device.

Background

In many fitness sports equipment, such as exercise bicycles, elliptical machines, rowing machines and other machines, certain damping is required to stimulate the muscles of the human body to exert force during the exercise. A conventional flywheel resistance adjusting system disclosed in patent document CN109381834A includes a flywheel, a motor, a transmission structure, a magnetic shoe and a PCB; the motor, the transmission structure, the magnetic shoe and the PCB are all arranged on the flywheel; the transmission structure comprises a speed reduction assembly and a lead screw assembly, a motor, the speed reduction assembly, the lead screw assembly and a magnetic shoe are sequentially connected, and the magnetic shoe is slidably mounted on the flywheel; the PCB is provided with a motor operation protection circuit, and the motor operation protection circuit is connected with a motor; the lead screw assembly comprises a lead screw and an adjusting nut; the speed reducing assembly comprises a worm wheel and a worm, the worm is fixedly connected with the motor in the circumferential direction, and the worm wheel is fixedly connected with the screw rod in the circumferential direction; the adjusting nut forms a sliding block, and the sliding block is connected to the magnetic shoe through a set pull rope.

However, the conventional flywheel resistance adjustment system has the following problems:

1. there is still a point of structural optimization.

2. The structure is complicated, the installation and debugging are difficult, the damage of any one part on a power transmission path can directly cause the damage of the whole function, and the failure rate is extremely high.

SUMMERY OF THE UTILITY MODEL

To the defects in the prior art, the utility model aims at providing an interior magnetic control flywheel resistance adjusting device.

According to the utility model provides a pair of interior magnetism accuse flywheel resistance adjusting device, include: the device comprises a metal flywheel 1, an aluminum ring 2, a plastic chassis 3, a magnetic shoe 4, a driving motor 20 and a reduction box 22;

the metal flywheel 1 rotates around the plastic chassis 3;

the aluminum ring 2 is fixedly connected with the metal flywheel 1;

the magnetic shoe (4) and the driving motor (20) are arranged on the plastic chassis (3);

the driving motor 20 is connected with the reduction box 22 through the worm 18;

the driving motor 20 can drive the magnetic shoe 4 to move.

Preferably, a worm wheel 19 is arranged on the plastic chassis 3; the worm wheel 19 is connected with the worm 18.

Preferably, the method further comprises the following steps: a rack 21; the rack 21 is connected with a reduction gearbox 22.

Preferably, the method further comprises the following steps: a connecting rod 15; the connecting rod 15 is connected with the magnetic shoe 4.

Preferably, a shaft 12; the shaft 12 is connected to the plastic chassis 3 by means of bearings.

Preferably, the method further comprises the following steps: the iron ring (5), the said iron ring (5) is installed on plastic chassis (3); the magnetic shoe (4) is arranged on the iron ring (5).

Preferably, the method further comprises the following steps: a flange 13; the plastic chassis 3 is connected to the shaft 12 via a flange 13.

Preferably, the magnetic shoe 4 is plural.

Preferably, the iron ring 5 is plural.

Preferably, the reduction box 22 is provided with an output gear 23; the output gear 23 is connected to the rack 21.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. reasonable structure and convenient operation.

2. The gap between the magnetic shoe and the aluminum ring on the metal flywheel is adjusted, so that the damping intensity generated by the interaction of the magnetic field intensity and the aluminum ring is adjusted, and the method is simple, reliable and low in cost.

3. By simplifying the transmission portion, cost control and life improvement are facilitated.

4. Through gear, rack transmission, resistance change control is more accurate.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of an internal magnetic control flywheel resistance adjusting device provided by the present invention;

fig. 2 is a schematic cross-sectional view of an internal magnetic control flywheel resistance adjustment device provided by the present invention;

fig. 3 is a schematic view of a locally enlarged structure of an internal magnetic control flywheel resistance adjusting device provided by the present invention.

The figures show that:

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 to 2, the internal magnetic control flywheel resistance adjusting device provided by the invention comprises: the device comprises a metal flywheel 1, an aluminum ring 2, a plastic chassis 3, a magnetic shoe 4, a driving motor 20 and a reduction box 22; the metal flywheel 1 rotates around the plastic chassis 3; the aluminum ring 2 is fixedly connected with the metal flywheel 1; the magnetic shoe 4 and the driving motor 20 are arranged on the plastic chassis 3; the driving motor 20 is connected with the reduction box 22 through the worm 18; the driving motor 20 can drive the magnetic shoe 4 to move. A worm wheel 19 is arranged on the plastic chassis 3; the worm wheel 19 is connected with the worm 18. In a preferred embodiment, as shown in fig. 3, the driving motor 20 transmits power to the reduction gearbox 22 through the worm wheel 19 and the worm 18, and then directly transmits the power to the rack 21, the rack 21 has a function of a sliding block, the rotary motion of the motor 20 is converted into the linear motion of the rack 21, the connecting rod 15 drives the magnetic shoe 4 to move, the distance between the magnetic shoe 4 and the aluminum ring 2 is changed, and the damping received by the metal flywheel 1 during rotation is correspondingly adjusted.

Further, as shown in fig. 3, the internal magnetic control flywheel resistance adjusting device further includes: a rack 21; the rack 21 is connected with the reduction gearbox 22; further comprising: a connecting rod 15; the connecting rod 15 is connected with the magnetic shoe 4. Further comprising a shaft 12; the shaft 12 is connected to the plastic chassis 3 by means of bearings. In a preferred embodiment, when the motor 20 receives an electric signal and starts to rotate, the worm 18 fixed on the motor shaft starts to synchronously rotate, the worm wheel 19 meshed with the worm starts to drive the gear set in the reduction box 22, the last stage gear 23 behind the reduction box 22 drives the meshed rack 21 to move up and down in the sliding groove, so that the connecting rod 15 and the magnetic shoe 4 are driven to move together, the change of the gap between the aluminum ring 2 and the magnetic shoe 4 on the metal flywheel 1 is realized, and the change of the gap can adjust the rotation damping torque of the metal flywheel 1. In a preferred embodiment, the reduction ratio of the reduction gear 22 can be adjusted as desired.

Still further, still include: the iron ring 5 is arranged on the plastic chassis 3; further comprising: a flange 13; the plastic chassis 3 is connected with a shaft 12 through a flange 13; the number of the magnetic shoes 4 is multiple; the number of the iron rings 5 is multiple; the reduction box 22 is provided with an output gear 23; the output gear 23 is connected to the rack 21.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. An internal magnetic control flywheel resistance adjustment device, comprising: the device comprises a metal flywheel (1), an aluminum ring (2), a plastic chassis (3), magnetic shoes (4), a driving motor (20) and a reduction box (22);

the metal flywheel (1) rotates around the plastic chassis (3);

the aluminum ring (2) is fixedly connected with the metal flywheel (1);

the driving motor (20) is connected with the reduction box (22) through a worm (18);

the driving motor (20) can drive the magnetic shoe (4) to move.

2. The internal magnetically controlled flywheel resistance adjustment device according to claim 1, characterized in that a worm gear (19) is arranged on the plastic chassis (3); the worm wheel (19) is connected with the worm (18).

3. The internally magnetically controlled flywheel resistance adjustment device according to claim 1, further comprising: a rack (21); the rack (21) is connected with the reduction gearbox (22).

4. The internally magnetically controlled flywheel resistance adjustment device according to claim 1, further comprising: a connecting rod (15); the connecting rod (15) is connected with the magnetic shoe (4).

5. The internally magnetically controlled flywheel resistance adjustment device according to claim 1, further comprising a shaft (12); the shaft (12) is connected with the plastic chassis (3) through a bearing.

6. The internally magnetically controlled flywheel resistance adjustment device according to claim 1, further comprising: the iron ring (5), the said iron ring (5) is installed on plastic chassis (3); the magnetic shoe (4) is arranged on the iron ring (5).

7. The internally magnetically controlled flywheel resistance adjustment device according to claim 5, further comprising: a flange (13); the plastic chassis (3) is connected with the shaft (12) through a flange (13).

8. The internal magnetically controlled flywheel resistance adjustment device according to claim 1, wherein the magnetic shoe (4) is plural.

9. The internal magnetically controlled flywheel drag adjustment device according to claim 6, wherein said iron ring (5) is plural.

10. The internal magnetic control flywheel resistance adjustment device according to claim 3, characterized in that the reduction gearbox (22) is provided with an output gear (23); the output gear (23) is connected with the rack (21).