High-precision flywheel mechanism for exercise bicycle

Abstract

The high-precision flywheel mechanism comprises an installation frame, a flywheel assembly, an electromagnet assembly, a small belt wheel assembly and a pressing belt wheel assembly, the installation frame is provided with a flywheel core shaft, the flywheel assembly is installed on the flywheel core shaft in a rotating mode, the electromagnet assembly is installed on the installation frame and arranged on the outer side of the flywheel assembly, and the small belt wheel assembly is installed on the pressing belt wheel assembly. The small belt wheel assembly is installed on a steel sleeve of the flywheel assembly, the pressing wheel assembly is rotatably installed on the installation frame, and the small belt wheel assembly is sleeved with a belt used for driving the small belt wheel assembly and the flywheel assembly to rotate. According to the magnetic control flywheel module, the problems that an electromagnet assembly is easy to scratch and the assembly precision is difficult to control are solved, and the magnetic control flywheel module with large resistance and high precision in a game bringing-in mode is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building equipment technical field especially, a kind of high-precision flywheel mechanism for exercise bicycle. BACKGROUND

[0002] Exercise bicycle is a commonly used body-building equipment, and heat is consumed by carrying out riding aerobic exercise, but the existing exercise bicycle is single in function, and the magnetic control resistance is small, and the magnetic control wheel is easily scraped during packaging and transportation, which leads to complaint risk. The products existing in market adopt one-way bearing built-in flywheel center, which limits the design of exercise bicycle with large torque demand, so it is necessary to design a kind of magnetic control flywheel module with large resistance and high precision to meet game into mode, which can solve the problem of easy scraping of electromagnet assembly and difficult control of assembly precision. UTILITARY MODEL CONTENT

[0003] The utility model is to provide a kind of high-precision flywheel mechanism for exercise bicycle.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of high-precision flywheel mechanism for exercise bicycle, including mounting bracket, flywheel assembly, electromagnet assembly, small pulley assembly and belt presser assembly, the mounting bracket is provided with flywheel spindle, the flywheel assembly is rotatably installed on flywheel spindle, the electromagnet assembly is installed on mounting bracket, and is set outside flywheel assembly, the small pulley assembly is installed on the steel sleeve of flywheel assembly, the pressure wheel assembly is rotatably installed on mounting bracket, the small pulley assembly is provided with the belt for driving it and flywheel assembly rotation.

[0006] Further, the mounting bracket includes left support plate, right support plate and bolt, the left support plate and right support plate are respectively arranged at the left side and right side of flywheel assembly, and are provided with screw hole, are connected and fixed by bolt cooperation locknut, the electromagnet assembly is installed on the bolt between left support plate and right support plate.

[0007] Further, the electromagnet assembly includes electromagnet and limit frame, the electromagnet is arranged on limit frame, the limit frame is provided with a plurality of openings, the bolt passes through the opening, and the limit frame and electromagnet are fixed between left support plate and right support plate, and keep the spacing with flywheel assembly.

[0008] Further, the bolt is provided with 6, wherein 4 install limit frame and electromagnet, and the other 2 are arranged on the two sides of electromagnet assembly for strengthening structure stability, and sleeve pipe is sleeved on the two bolts.

[0009] Further, the outside of right support plate is provided with reinforcing plate for increasing structural stability.

[0010] Further, the left and right ends of the flywheel shaft are respectively sleeved with a second spacer sleeve and a third spacer sleeve, the second spacer sleeve is used to limit the distance between the flywheel assembly and the left support plate, and the third spacer sleeve is used to limit the distance between the small pulley and the right support plate.

[0011] Further, the left and right support plates are both provided with rotating holes for rotatingly mounting the flywheel shaft, and the flywheel shaft is limited by a flange nut threadedly mounted at the end of the flywheel shaft.

[0012] Further, the mounting frame is rotatingly mounted with a belt pressing pulley assembly, the belt pressing pulley assembly comprises a belt pressing pulley, a bearing and a first spacer sleeve, the belt pressing pulley is rotatingly mounted on the mounting frame through the bearing and a rotating shaft and cooperates with the belt, and the first spacer sleeve is sleeved on the rotating shaft to prevent the bearing from being directly contacted and abraded.

[0013] Further, the small pulley assembly comprises a small pulley, a large bearing, a secondary bearing and a one-way bearing, and the small pulley is rotatingly mounted on the flywheel shaft through the large bearing, the secondary bearing and the one-way bearing.

[0014] Compared with the background art, the flywheel assembly and the electromagnet assembly are limited by the mounting frame to keep the gap stable, and the flywheel assembly is not easy to be scraped when running under a large torque, the overall structure is ingenious, the problem of easy scraping of the electromagnet assembly and difficult control of assembly precision is solved, and the magnetic control flywheel module with large resistance and high precision in the game belt input mode can be met.

[0015] The flywheel assembly and the electromagnet assembly are limited by the mounting frame to keep the gap stable, and the flywheel assembly is not easy to be scraped when running under a large torque, the overall structure is ingenious, the problem of easy scraping of the electromagnet assembly and difficult control of assembly precision is solved, and the magnetic control flywheel module with large resistance and high precision in the game belt input mode can be met. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is an exploded structure schematic view of the utility model;

[0018] Figure 3 It is an exploded structure schematic view of the flywheel assembly of the utility model;

[0019] Figure 4 It is an exploded structure schematic view of the small pulley assembly of the utility model;

[0020] Figure 5 It is an exploded structure schematic view of the belt pressing pulley assembly of the utility model.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] Flywheel assembly 1; Small pulley assembly 2; Belt pressing wheel assembly 3; Electromagnet 4; Limiting frame 5; Left support plate 6; Right support plate 7; Bolt 8; Flange nut 9; Second spacer sleeve 10; Third spacer sleeve 11; Belt 12; Sleeve 13; Lock nut 14; Flywheel spindle 15; Flywheel body 101; Steel sleeve 102; Flywheel heat sink 103; Flywheel induction disc 104; Flywheel bearing 105; Small pulley 201; Large bearing 202; Secondary bearing 203; One-way bearing 204; Belt pressing wheel 301; First spacer sleeve 302; Reinforcing plate 701. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0024] It should be noted in the utility model that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings and are only used to facilitate the description of the utility model and simplify the description, and are not intended to indicate or imply that the devices or elements of the utility model must have a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] Embodiment

[0026] Cooperation Figures 1 to 5 As shown, the utility model discloses a high-precision flywheel mechanism for exercise bicycle, including flywheel assembly 1, small pulley assembly 2, belt pressing wheel assembly 3, electromagnet assembly and mounting bracket, electromagnet assembly includes electromagnet 4 and limiting frame 5, and mounting bracket includes left support plate 6, right support plate 7 and bolt 8, still includes flange nut 9, second spacer sleeve 10, third spacer sleeve 11, belt 12, sleeve 13, lock nut 14 and flywheel spindle 15.

[0027] The mounting bracket is provided with flywheel spindle 15, flywheel assembly 1 is rotatably installed on flywheel spindle 15, electromagnet assembly is installed on the mounting bracket and is arranged on the outer side of flywheel assembly 1, small pulley assembly 2 is installed on the steel sleeve of flywheel assembly 1, and the pulley assembly is rotatably installed on the mounting bracket, the small pulley assembly 2 is sleeved with belt 12 for driving rotation of the small pulley assembly 2 and flywheel assembly 1.

[0028] Flywheel assembly 1 of this embodiment includes flywheel body 101, steel sleeve 102, flywheel heat sink 103, flywheel induction disc 104 and flywheel bearing 105, flywheel body 101 is rotatably installed on flywheel spindle 15 through flywheel bearing 105, and steel sleeve 102, flywheel heat sink 103 and flywheel induction disc 104 are installed on flywheel body 101 respectively.

[0029] The mounting frame comprises a left support plate 6, a right support plate 7 and a bolt 8, the left support plate 6 and the right support plate 7 are respectively arranged on the left and right sides of the flywheel assembly 1 and are provided with screw holes, and are connected and fixed by the bolt 8 cooperating with a lock nut 14, and the electromagnet assembly is mounted on the bolt 8 between the left support plate 6 and the right support plate 7.

[0030] The electromagnet assembly comprises an electromagnet 4 and a limiting frame 5, the electromagnet 4 is arranged on the limiting frame 5, the limiting frame 5 is provided with a plurality of openings, and the bolt 8 passes through the openings to fix the limiting frame 5 and the electromagnet 4 between the left support plate 6 and the right support plate 7 and maintain the spacing from the flywheel assembly 1.

[0031] The bolt 8 is provided with six bolts, four of which are used to mount the limiting frame 5 and the electromagnet 4, and the other two are arranged on the two sides of the electromagnet assembly to strengthen the structural stability, and a sleeve 13 is sleeved on the two bolts 8.

[0032] The outer side of the right support plate 7 is provided with a reinforcing plate 701 to increase the structural stability.

[0033] The left and right ends of the flywheel mandrel 15 are respectively sleeved with a second spacer 10 and a third spacer 11, the second spacer 10 limits the spacing between the flywheel assembly 1 and the left support plate 6, and the third spacer 11 limits the spacing between the small pulley and the right support plate 7.

[0034] The left support plate 6 and the right support plate 7 are both provided with a rotating hole for rotatingly mounting the flywheel mandrel 15, and the flywheel mandrel 15 is threadedly mounted on the end of the flywheel mandrel 15 by a flange nut 9 for limiting.

[0035] The mounting frame is rotatably mounted with a belt pressing wheel assembly 3, the belt pressing wheel assembly 3 comprises a belt pressing wheel 301, a bearing and a first spacer 302, the belt pressing wheel 301 is rotatably mounted on the mounting frame by the bearing and a rotating shaft, and cooperates with a belt 12, and the first spacer 302 is sleeved on the rotating shaft to prevent the bearing from being directly contacted and worn.

[0036] The small pulley assembly 2 comprises a small pulley 201, a large bearing 202, a secondary bearing 203 and a one-way bearing 204, and the small pulley 201 is rotatably mounted on the flywheel mandrel 15 through the large bearing 202, the secondary bearing 203 and the one-way bearing 204.

[0037] The embodiment keeps the gap between the flywheel assembly 1 and the electromagnet assembly stable by the mounting frame, ensures that the flywheel assembly 1 is not easy to scratch during operation under large torque, and solves the problems of easy scratching of the electromagnet assembly and difficult control of assembly precision, and can meet the large resistance and high-precision magnetic control flywheel module of the game belt input mode.

[0038] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high-precision flywheel mechanism for exercise bikes, characterized in that: The device includes a mounting bracket, a flywheel assembly, an electromagnet assembly, a small pulley assembly, and a pressure pulley assembly. The mounting bracket is equipped with a flywheel spindle, and the flywheel assembly is rotatably mounted on the flywheel spindle. The electromagnet assembly is mounted on the mounting bracket and positioned outside the flywheel assembly. The small pulley assembly is mounted on a steel sleeve of the flywheel assembly, and the pressure pulley assembly is rotatably mounted on the mounting bracket. The small pulley assembly is fitted with a belt for driving it and the flywheel assembly to rotate.

2. The high-precision flywheel mechanism for exercise bikes as described in claim 1, characterized in that: The mounting bracket includes a left support plate, a right support plate, and bolts. The left and right support plates are respectively located on the left and right sides of the flywheel assembly and have screw holes. They are connected and fixed by bolts and anti-loosening nuts. The electromagnet assembly is mounted on the bolts between the left and right support plates.

3. The high-precision flywheel mechanism for exercise bikes as described in claim 2, characterized in that: The electromagnet assembly includes an electromagnet and a limiting frame. The electromagnet is mounted on the limiting frame, which has multiple openings. Bolts pass through the openings to fix the limiting frame and the electromagnet between the left support plate and the right support plate, maintaining a distance from the flywheel assembly.

4. The high-precision flywheel mechanism for exercise bikes as described in claim 3, characterized in that: There are 6 bolts, 4 of which are used to install the limit bracket and electromagnet, and the other 2 are set on both sides of the electromagnetic assembly to enhance structural stability. Sleeves are fitted on these 2 bolts.

5. A high-precision flywheel mechanism for an exercise bike as described in claim 3, characterized in that: The outer side of the right support plate is provided with a reinforcing plate to increase structural stability.

6. The high-precision flywheel mechanism for exercise bikes as described in claim 3, characterized in that: The flywheel spindle is fitted with a second spacer and a third spacer at its left and right ends, respectively. The second spacer limits the distance between the flywheel assembly and the left support plate, and the third spacer limits the distance between the small pulley and the right support plate.

7. A high-precision flywheel mechanism for an exercise bike as described in claim 3, characterized in that: Both the left and right support plates have rotating holes for rotatably mounting the flywheel spindle. The flywheel spindle is limited by being threaded onto the end of the flywheel spindle by a flange nut.

8. The high-precision flywheel mechanism for exercise bikes as described in claim 1, characterized in that: The mounting frame rotatably mounts a pressure roller assembly, which includes a pressure roller, a bearing, and a first spacer. The pressure roller is rotatably mounted on the mounting frame via the bearing and a rotating shaft and engages with the belt. The first spacer is fitted onto the rotating shaft to prevent the bearing from directly contacting and wearing.

9. A high-precision flywheel mechanism for an exercise bike as described in claim 8, characterized in that: The small pulley assembly includes a small pulley, a large bearing, a secondary bearing, and a one-way bearing. The small pulley is rotatably mounted on the flywheel spindle via the large bearing, the secondary bearing, and the one-way bearing.

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