Noise reduction structure for roller of treadmill

Abstract

The utility model discloses a treadmill roller noise reduction structure which comprises a rotating shaft, a mute driving structure and a bearing noise reduction structure, the mute driving structure is arranged on the rotating shaft, and the bearing noise reduction structure is arranged on the rotating shaft. The mute driving structure comprises a connecting base, a rotating roller, a rubber sleeve, a noise reduction core, honeycomb noise reduction holes, a noise conduction layer, a sealing shell and a fixing bolt, the connecting base fixedly wraps the rotating shaft, the rotating roller fixedly wraps the connecting base, the rubber sleeve wraps the rotating roller, the noise reduction core is arranged between the rotating roller and the rotating shaft in an extrusion mode, and the honeycomb noise reduction holes are formed in the rotating shaft. And the honeycomb noise reduction holes are formed in the noise reduction core. The utility model belongs to the technical field of treadmill equipment, particularly relates to a noise reduction structure for a roller of a treadmill, and effectively solves the problems that most rollers of the treadmill are integrally solid, smooth in surface, small in friction coefficient and easy to slip, and a belt is directly wound on the rollers to cause friction transmission, so that the noise is loud, and the use effect is influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of treadmill equipment, and particularly relates to a noise reduction structure for a treadmill roller. Background Art

[0002] As is well known, with the progress of society, people now pay more and more attention to their own health maintenance. An important means to maintain human health is to exercise various parts of the human body through exercise so as to achieve the purpose of health. Among various exercise methods for exercising the human body, running exercise is particularly valued by people. The treadmill has a relatively large role in fitness. It can exercise people's muscles and bones, and it also has a good improvement effect on people's cardiovascular and heart diseases. Generally speaking, the structure of a treadmill includes a roller, which is arranged in a rotating belt to achieve the function of power transmission. Common rollers are mostly cylindrical structures.

[0003] However, most of the current treadmill rollers are integrally solid, with a smooth surface, a small friction coefficient, and are prone to slipping. At the same time, the belt is directly wound around the roller, and the friction drive causes a large noise, affecting the use effect. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a noise reduction structure for a treadmill roller, which effectively solves the problems that most of the current treadmill rollers are integrally solid, with a smooth surface, a small friction coefficient, and are prone to slipping. At the same time, the belt is directly wound around the roller, and the friction drive causes a large noise, affecting the use effect.

[0005] The technical solution adopted by the utility model is as follows: A noise reduction structure for a treadmill roller proposed by the utility model includes a rotating shaft, a silent driving structure, and a bearing noise reduction structure. The silent driving structure is arranged on the rotating shaft, and the bearing noise reduction structure is arranged on the rotating shaft. The silent driving structure includes a connecting seat, a rotating roller, a rubber sleeve, a noise reduction core, honeycomb noise reduction holes, a noise conduction layer, a sealing shell, and fixing bolts. The connecting seat is fixedly wrapped on the rotating shaft, the rotating roller is fixedly wrapped on the connecting seat, the rubber sleeve is wrapped on the rotating roller, the noise reduction core is extruded between the rotating roller and the rotating shaft, the honeycomb noise reduction holes are arranged on the noise reduction core, the noise conduction layer is arranged on the noise reduction core, the sealing shell penetrates through the rotating shaft and is extruded on one side of the rotating roller, and the fixing bolts are threadedly penetrated on the rotating shaft.

[0006] Preferably, the bearing noise reduction structure includes an inner ring, a support frame, an outer shell, and rolling balls. The inner ring penetrates through the rotating shaft and is fixedly arranged, the support frame is rotatably arranged around the inner ring, the outer shell is rotatably arranged around the support frame, and the rolling balls penetrate through the support frame and roll between the outer shell and the inner ring.

[0007] To better achieve the anti-slip effect, anti-slip grooves are provided on both the inner and outer sides of the rubber sleeve.

[0008] To more quickly achieve the purpose of noise reduction, a noise reduction core is provided inside the rotating roller, and the honeycomb noise reduction holes in the noise reduction core are vertically arranged with the noise conduction layer.

[0009] Furthermore, the noise reduction core is made of sound-absorbing cotton material.

[0010] To achieve the effect of noise reduction, the inner ring rotates silently under the rolling action of the support frame.

[0011] The beneficial effects obtained by the present utility model with the above structure are as follows: A noise reduction structure for a treadmill roller proposed in this solution increases the frictional gripping force through a rubber sleeve to reduce the noise generated by grinding. At the same time, the noise reduction core absorbs the noise inside the rotating roller to achieve silent drive. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of a noise reduction structure for a treadmill roller proposed by the present utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of a noise reduction structure for a treadmill roller proposed by the present utility model;

[0014] Figure 3 is Figure 2 A partial enlarged schematic diagram of part A in

[0015] Among them, 1, rotating shaft; 2, silent drive structure; 3, bearing noise reduction structure; 4, connecting seat; 5, rotating roller; 6, rubber sleeve; 7, noise reduction core; 8, honeycomb noise reduction holes; 9, noise conduction layer; 10, sealing shell; 11, fixing bolt; 12, inner ring; 13, support frame; 14, outer shell; 15, ball.

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0018] Such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, a noise reduction structure for a treadmill roller proposed by the present utility model includes a rotating shaft 1, a silent drive structure 2, and a bearing noise reduction structure 3. The silent drive structure 2 is arranged on the rotating shaft 1, and the bearing noise reduction structure 3 is arranged on the rotating shaft 1. The silent drive structure 2 includes a connecting seat 4, a rotating roller 5, a rubber sleeve 6, a noise reduction core 7, honeycomb noise reduction holes 8, a noise conduction layer 9, a sealing shell 10, and fixing bolts 11. The connecting seat 4 is fixedly wrapped around the rotating shaft 1, the rotating roller 5 is fixedly wrapped around the connecting seat 4, the rubber sleeve 6 is wrapped around the rotating roller 5, and anti-slip grooves are provided on both the inner and outer sides of the rubber sleeve 6. The noise reduction core 7 is extruded between the rotating roller 5 and the rotating shaft 1, and the noise reduction core 7 is made of sound-absorbing cotton material. The honeycomb noise reduction holes 8 are arranged on the noise reduction core 7, and the noise conduction layer 9 is arranged on the noise reduction core 7. The honeycomb noise reduction holes 8 in the noise reduction core 7 are perpendicular to the noise conduction layer 9. The sealing shell 10 penetrates the rotating shaft 1 and is extruded on one side of the rotating roller 5, and the fixing bolts 11 are threadedly penetrated through the rotating shaft 1.

[0019] As Figure 2 shown, the bearing noise reduction structure 3 includes an inner ring 12, a support frame 13, an outer shell 14, and rolling balls 15. The inner ring 12 penetrates the rotating shaft 1 and is fixedly arranged, the support frame 13 is wrapped around the inner ring 12 and rotates, and the inner ring 12 rotates silently under the rolling action of the support frame 13. The outer shell 14 is wrapped around the support frame 13 and rotates, and the rolling balls 15 penetrate the support frame 13 and roll between the outer shell 14 and the inner ring 12.

[0020] During specific use, when the device is in use, the grooves on the outer side of the rubber sleeve 6 are in contact with the belt, increasing the friction force and avoiding slipping. At the same time, when the belt is in contact with the rubber sleeve 6, the generation of noise can be reduced. The generated noise is transmitted to the inside of the rotating roller 5. At this time, the noise is transmitted along the noise conduction layer 9 and then enters the honeycomb noise reduction holes 8 to be reduced, thereby reducing the outward diffusion of noise and affecting the quiet running environment. At the same time, the inner ring 12 uses the bearing noise reduction structure 3 to reduce the noise generated by the long-term rotational friction of the rotating shaft 1, resulting in surface damage. At this time, the inner ring 12 wrapping the rotating shaft 1 rotates silently in the outer shell 14 under the rolling action of the rolling balls 15. The above is the use process of the entire noise reduction structure of the treadmill roller.

[0021] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device.

[0022] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0023] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A treadmill drum noise reduction structure, characterized in that: It includes a rotating shaft, a silent driving structure and a bearing noise reduction structure, the silent driving structure is arranged on the rotating shaft, the bearing noise reduction structure is arranged on the rotating shaft, the silent driving structure includes a connecting seat, a rotating roller, a rubber sleeve, a noise reduction core, a honeycomb noise reduction hole, a noise conduction layer, a sealing shell and a fixing bolt, the connecting seat is fixedly wrapped on the rotating shaft, the rotating roller is fixedly wrapped on the connecting seat, the rubber sleeve is wrapped on the rotating roller, the noise reduction core is extruded between the rotating roller and the rotating shaft, the honeycomb noise reduction hole is arranged on the noise reduction core, the noise conduction layer is arranged on the noise reduction core, the sealing shell passes through the rotating shaft and is extruded on one side of the rotating roller, and the fixing bolt threadedly passes through the rotating shaft.

2. A treadmill drum noise reduction structure according to claim 1, characterized in that: The bearing noise reduction structure includes an inner ring, a support frame, an outer shell and a ball. The inner ring passes through the rotating shaft and is fixedly arranged. The support frame wraps the inner ring and is rotatably arranged. The outer shell wraps the support frame and is rotatably arranged. The ball passes through the support frame and is rolled between the outer shell and the inner ring.

3. A treadmill drum noise reduction structure according to claim 2, characterized in that: Anti-slip grooves are arranged on both sides of the rubber sleeve.

4. A treadmill drum noise reduction structure according to claim 3, characterized in that: A noise reduction core is arranged inside the rotating roller, and the honeycomb noise reduction holes in the noise reduction core are arranged perpendicularly to the noise conduction layer.

5. A treadmill drum noise reduction structure according to claim 4, characterized in that: The noise reduction core is made of sound-absorbing cotton material.

6. A treadmill drum noise reduction structure according to claim 5, characterized in that: The inner ring rotates silently under the rolling action of the support frame.

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