Elliptical machine speed regulator

Abstract

The utility model discloses an elliptical machine speed regulator, which comprises a bottom plate, a power device mounted at one end of the bottom plate, a power device fixing plate mounted on the bottom plate, a tightening hoop mounted at one end of the power device, a conductor cylinder connected with the front end of the tightening hoop, and a power device fixing plate mounted on the conductor cylinder. A magnetic assembly fastening device is fixedly connected between the tightening hoop and the conductor cylinder, the induction magnetic fields of the conductor cylinder and the magnetic assembly interact to generate torque, the inner cylinder supporting plate is installed on the bottom plate through the inner cylinder supporting plate installation holes, and the size of a gap between the conductor cylinder and the magnetic assembly can be adjusted by changing the relative position of the inner cylinder supporting plate and the bottom plate. Therefore, the effective coupling part of the conductor cylinder and the magnetic component on the magnetic component can be changed, the speed is further adjusted, vibration and noise can be reduced through a non-mechanical contact type structure, and energy loss caused by vibration can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of elliptical machines, and specifically relates to an elliptical machine speed regulator. Background Art

[0002] An elliptical machine is a common cardiorespiratory fitness exercise training tool and an indoor fitness equipment, also known as a space walker. The movement pattern of the elliptical machine is similar to that of cross-country skiing. The key points of the movement are to gently hold the handrails above the equipment with both hands; move the hands forward step by step with the feet for pedaling; after the movement of the hands and feet reaches a relatively coordinated level, gradually increase the pushing and pulling force of the hands. The movement frequency should be gradually increased, but not too fast, and should be within the range that can be controlled by oneself. At present, the speed regulation of most elliptical machines mainly relies on mechanical contact speed regulation, so there will be noise and vibration problems during speed regulation. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an elliptical machine speed regulator that can reduce vibration and noise and reduce energy loss.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions;

[0005] An elliptical machine speed regulator, including a bottom plate, characterized in that: a power device is installed at one end of the bottom plate, a power device fixing plate is installed on the bottom plate, the power device fixing plate is fixedly connected with the power device, a tightening hoop is installed at one end of the power device, a conductor cylinder is connected to the front end of the tightening hoop, a magnetic component fastening device is fixedly connected between the tightening hoop and the conductor cylinder, an inner cylinder support plate is installed at the front end of the bottom plate, an inner cylinder is connected to one end of the inner cylinder support plate, a bearing baffle is connected between the inner cylinder support plate and the inner cylinder, a magnetic component is connected to the inner and outer walls, a first bearing and a second bearing are installed between the magnetic component and the inner cylinder, a first bearing retaining ring is fixedly connected between the first bearing and the magnetic component, and a second bearing retaining ring is fixedly connected between the second bearing and the magnetic component.

[0006] Further, the material of the conductor cylinder is rare earth metal oxide neodymium iron boron.

[0007] Further, the bottom plate is provided with inner cylinder support plate mounting holes.

[0008] Further, the inner cylinder is provided with spiral grooves, and the number of the spiral grooves is 2.

[0009] Further, the magnetic component includes an outer cylinder, a magnetic seat bearing is installed inside the outer cylinder, a clamping hoop is installed at one end of the outer cylinder, a slider is installed on the outer side of the outer cylinder, a magnetic seat is connected inside the magnetic seat bearing, a magnet outer ring is installed on the outer side of the magnetic seat, a magnetic seat end cover is installed at one end of the magnetic seat, a magnetic group is installed between the outer side of the magnetic seat and the magnet outer ring, and a load shaft is installed inside the magnetic seat.

[0010] Further, the magnetic group includes magnetic elements, and the number of the magnetic elements is 8.

[0011] The beneficial effects of the present utility model are as follows:

[0012] In the present utility model, a torque is generated by the interaction between the induction magnetic fields of the conductor cylinder and the magnetic component. The inner cylinder support plate is installed on the bottom plate through the installation holes of the inner cylinder support plate. By changing the relative position between the inner cylinder support plate and the bottom plate, the gap size between the conductor cylinder and the magnetic component can be adjusted, so that the effective part of the magnetic components on the conductor cylinder and the magnetic component coupled can be changed. The vibration and noise are reduced through a non-mechanical contact structure, and the energy loss caused by vibration can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art:

[0014] Figure 1 It is a schematic cross-sectional view of the present utility model;

[0015] Figure 2 It is a schematic three-dimensional structure view of the present utility model;

[0016] Figure 3 It is a schematic exploded three-dimensional structure view of the present utility model;

[0017] Figure 4 It is a schematic three-dimensional structure view of the magnetic component in the present utility model;

[0018] Figure 5 It is a schematic cross-sectional view of the magnetic component in the present utility model;

[0019] Figure 6 It is a schematic exploded three-dimensional structure view of the magnetic component in the present utility model;

[0020] Figure 7 It is a schematic three-dimensional structure view of the magnetic group in the present utility model;

[0021] Figure 8 It is a schematic exploded three-dimensional structure view of the magnetic group in the present utility model;

[0022] Figure 9This is a three-dimensional structural schematic diagram of the inner cylinder in the present utility model.

[0023] The reference numerals in the attached drawings are: 1 - bottom plate, 1a - inner cylinder support plate mounting hole, 2 - power device, 3 - fastener, 4 - power device fixing plate, 5 - tightening hoop, 6 - conductor cylinder, 7 - magnetic assembly, 7a - load shaft, 7b - outer cylinder, 7c - slider, 7d - clamping hoop, 7e - magnetic seat, 7f - magnet outer ring, 7g - magnetic group, 7h - magnetic seat end cover, 7i - magnetic seat bearing, 8 - inner cylinder support plate, 9 - inner cylinder, 9a - spiral groove, 10 - first bearing, 11 - second bearing, 12 - magnetic assembly fastening device, 13 - first bearing retaining ring, 14 - second bearing retaining ring, 15 - bearing baffle. Specific embodiments

[0024] The following describes the specific embodiments of the present utility model with reference to the accompanying drawings.

[0025] Refer to Figures 1 - 3 as shown:

[0026] An elliptical machine speed regulator includes a bottom plate 1. The bottom plate 1 is provided with an inner cylinder support plate mounting hole 1a. One end of the bottom plate 1 is installed with a power device 2. A power device fixing plate 4 is installed on the bottom plate 1. The power device fixing plate 4 is fixedly connected to the power device 2. One end of the power device 2 is installed with a tightening hoop 5. The front end of the tightening hoop 5 is connected to a conductor cylinder 6. The material of the conductor cylinder 6 is a rare metal oxide neodymium iron boron permanent magnet. A magnetic assembly fastening device 12 is fixedly connected between the tightening hoop 5 and the conductor cylinder 6. The front end of the bottom plate 1 is installed with an inner cylinder support plate 8. One end of the inner cylinder support plate 8 is connected to an inner cylinder 9. A bearing baffle 15 is connected between the inner cylinder support plate 8 and the inner cylinder 9. The outer wall of the inner cylinder 9 is connected with a magnetic assembly 7. A first bearing 10 and a second bearing 11 are installed between the magnetic assembly 7 and the inner cylinder 9. A first bearing retaining ring 13 is fixedly connected between the first bearing 10 and the magnetic assembly 7. A second bearing retaining ring 14 is fixedly connected between the second bearing 11 and the magnetic assembly 7.

[0027] The conductor cylinder 6 and the magnetic assembly 7 interact with the induced magnetic fields to generate torque. The inner cylinder support plate 8 is installed on the bottom plate 1 through the inner cylinder support plate mounting hole 1a. By changing the relative position between the inner cylinder support plate 8 and the bottom plate 1, the gap size between the conductor cylinder 6 and the magnetic assembly 7 can be adjusted, so that the effective part of the magnetic components coupled on the conductor cylinder 6 and the magnetic assembly 7 can be changed, and thus the torque transmitted between the two can be changed and the load speed can be adjusted. Since the speed is not adjusted by mechanical linkage, vibration and noise can be reduced.

[0028] The power device 2 can rotate forward or backward. The power device 2 transmits the motion to the tightening hoop 5, and the tightening hoop 5 then transmits the motion to the conductor cylinder 6. The conductor cylinder 6 transmits the motion to the magnetic assembly 7 through non-mechanical contact. The output speed is adjusted by the distance that the slider 7c on the magnetic assembly 7 slides in the spiral groove 9a.

[0029] Refer to Figures 4 - 6 as shown in:

[0030] The magnetic assembly 7 includes an outer cylinder 7b. Inside the outer cylinder 7b, a magnetic seat bearing 7i is installed. Outside the outer cylinder 7b, a slider 7c is installed. At one end of the outer cylinder 7b, a clamping hoop 7d is installed. Inside the magnetic seat bearing 7i, a magnetic seat 7e is connected. Outside the magnetic seat 7e, a magnet outer ring 7f is installed. At one end of the magnetic seat 7e, a magnetic seat end cover 7h is installed. Between the outside of the magnetic seat 7e and the magnet outer ring 7f, a magnetic group 7g is installed. Inside the magnetic seat 7e, a load shaft 7a is installed.

[0031] Refer to Figures 7 - 8 as shown in:

[0032] The magnetic group 7g is composed of several magnetic elements 7g1, and the specific number is 8.

[0033] Refer to Figure 9 as shown in:

[0034] The inner cylinder 9 is provided with spiral grooves 9a, and the number of the spiral grooves 9a is 2.

[0035] The working principle of the present utility model is as follows: The conductor cylinder 6 and the magnetic assembly 7 interact with the induction magnetic field to generate torque. The inner cylinder support plate 8 is installed on the bottom plate 1 through the inner cylinder support plate installation hole 1a. By changing the relative position between the inner cylinder support plate 8 and the bottom plate 1, the gap size between the conductor cylinder 6 and the magnetic assembly 7 can be adjusted, so that the effective part of the magnetic components on the conductor cylinder 6 and the magnetic assembly 7 coupled can be changed, and thus the torque transmitted between the two can be changed and the load speed can be adjusted.

[0036] The power device 2 can rotate forward or backward. The power device 2 transmits the motion to the tightening hoop 5, and the tightening hoop 5 then transmits the motion to the conductor cylinder 6. The conductor cylinder 6 transmits the motion to the magnetic assembly 7 through non-mechanical contact. The output speed is adjusted by the distance that the slider 7c on the magnetic assembly 7 slides in the spiral groove 9a.

[0037] The power unit 2 and the load shaft 7a have no mechanical connection. By adjusting the gap between the conductor cylinder 6 and the magnetic assembly 7, the output torque on the load shaft 7a can be changed, and thus the load speed can be changed. In this way, the power unit 2 and the load shaft 7a are changed from the original hard (mechanical) connection to a soft (magnetic) connection. By adjusting the air gap between the permanent magnet and the conductor, the output torque on the load shaft can be changed, thereby achieving the change of the load speed. In this way, the accuracy during operation and the efficiency of speed control can be achieved, including "buffered start". The result is undoubtedly the efficient utilization of energy. Since there is no direct physical connection between the power end and the load end, this speed regulator can reduce the losses caused by vibration.

[0038] The above is only the specific implementation manner of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification of the present invention using this concept shall fall within the scope of infringement of the protection of the present invention.

Claims

1. An elliptical machine speed regulator, comprising a bottom plate, characterized in that: A power device is installed at one end of the base plate, a power device fixing plate is installed on the base plate, the power device fixing plate is tightly connected to the power device, a tight hoop is installed at one end of the power device, a conductor cylinder is connected to the front end of the tight hoop, a magnetic assembly fastening device is fixedly connected between the tight hoop and the conductor cylinder, an inner cylinder support plate is installed at the front end of the base plate, an inner cylinder is connected to one end of the inner cylinder support plate, a bearing baffle is connected between the inner cylinder support plate and the inner cylinder, the inner and outer walls are connected with a magnetic assembly, a first bearing and a second bearing are installed between the magnetic assembly and the inner cylinder, a first bearing retaining ring is fixedly connected between the first bearing and the magnetic assembly, and a second bearing retaining ring is fixedly connected between the second bearing and the magnetic assembly.

2. An elliptical machine speed regulator according to claim 1, characterized in that The conductor tube is made of rare metal oxide neodymium iron boron.

3. The elliptical machine speed regulator according to claim 1, characterized in that : The bottom plate is provided with an inner cylinder support plate mounting hole.

4. The elliptical machine speed regulator according to claim 1, characterized in that : The inner cylinder is provided with a spiral groove, and the number of the spiral grooves is 2.

5. The elliptical machine speed regulator according to claim 1, characterized in that: The magnetic assembly includes an outer cylinder, a magnetic seat bearing is installed inside the outer cylinder, a clamping hoop is installed at one end of the outer cylinder, a slider is installed on the outside of the outer cylinder, a magnetic seat is connected to the inside of the magnetic seat bearing, a magnet outer ring is installed on the outside of the magnetic seat, a magnetic seat end cover is installed at one end of the magnetic seat, a magnetic group is installed between the outside of the magnetic seat and the magnet outer ring, and a load shaft is installed inside the magnetic seat.

6. The elliptical machine speed regulator according to claim 5, characterized in that: The magnetic group includes eight magnetic elements.

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