CN216497267U - Rear roller component of running machine - Google Patents

Abstract

The present disclosure provides a treadmill rear roller assembly that includes a roller, a cross shaft, and at least one inertia wheel mechanism. The transverse shaft is coaxially located within the drum and at least a first end extends relative to the drum. At least one inertia wheel mechanism is located first end, and inertia wheel mechanism includes planet wheel subassembly and inertia wheel, and the planet wheel subassembly overlaps outside the cross axle, links to each other respectively with cross axle and cylinder, and the inertia wheel overlaps outside the planet wheel subassembly, is connected with the cylinder transmission through planet wheel subassembly. Be provided with flywheel mechanism on the back roller assembly 1 of this treadmill, the flywheel has great arrangement space to can have bigger quality, increase the inertia of back roller assembly when rotatory, avoid the user when stepping into rotatory treadmill, the skidding appears between cylinder and the race area, reduces the feeling of seting back in the treadmill use.

Description

Rear roller component of running machine

Technical Field

The application relates to the field of sports equipment, in particular to a rear roller component of a running machine.

Background

Running machines are common home fitness equipment, and when the running machine is selected, people often select the running machine with smaller volume due to the limitation of residential space.

In the related art, a treadmill includes a front roller assembly including a front roller and an inertia wheel, a motor, a running belt, and a rear roller assembly. The output shaft of the motor of the treadmill is arranged at the front roller and is in transmission connection with the front roller.

Because the space that can arrange the flywheel is less in front roller department, consequently can only set up the flywheel of small volume, and the flywheel inertia that small is less leads to the treadmill to appear skidding and the phenomenon of seting up in the use.

SUMMERY OF THE UTILITY MODEL

In view of this, the present disclosure provides a rear roller assembly of a treadmill, which can increase the inertia of the rear roller during rotation.

Specifically, the method comprises the following technical scheme:

in a first aspect, a treadmill rear roller assembly is provided, the rear roller assembly comprising a roller, a cross shaft, and at least one inertia wheel mechanism;

the transverse shaft is coaxially positioned in the roller, and at least a first end of the transverse shaft extends out relative to the roller;

at least one inertia wheel mechanism is located first end, inertia wheel mechanism includes planet wheel subassembly and inertia wheel, planet wheel subassembly cover outside the cross axle, with the cross axle with the cylinder links to each other respectively, inertia wheel cover is in outside the planet wheel subassembly, through planet wheel subassembly with the cylinder transmission is connected.

Optionally, the planet wheel assembly includes sun gear, a plurality of planet wheel and planet carrier, the sun gear with the cross axle links to each other, and is a plurality of the planet wheel centers on the sun gear distributes, and respectively with the planet carrier links to each other, the inertia wheel cover is in a plurality of outside the planet wheel, and the inner wall with a plurality of the planet wheel contact, the planet carrier with the cylinder links to each other. The planet wheel assembly has the advantages of compact structure, small occupied space, uniform load distribution and longer service life.

Optionally, the inertia wheel mechanism further includes a first bearing, the first bearing is sleeved outside the cross shaft and located on one side of the planet wheel assembly away from the drum, an inner ring of the first bearing is connected with the cross shaft, and an outer ring of the first bearing is connected with the inertia wheel. The first bearing is connected with the transverse shaft and the inertia wheel, so that the installation position of the inertia wheel is more accurate, and the installation stability of the inertia wheel is improved.

Optionally, the inertia wheel includes a cylinder and an inner flange, the inner flange is located at one end of the cylinder, the cylinder is sleeved outside the planet wheel assembly, and the inner flange is sleeved outside the first bearing. The required size of the first bearing is reduced by providing an inner flange, facilitating assembly of the first bearing and the inertia wheel.

Optionally, the inertia wheel mechanism further includes a second bearing, the second bearing is sleeved outside the cross shaft and located on one side of the planet wheel assembly close to the drum, an inner ring of the second bearing is connected with the cross shaft, and an outer ring of the second bearing is connected with the drum. The second bearing is positioned in a gap between the end part of the roller and the transverse shaft, and plays a role of supporting the roller, so that the roller is more stable in rotation.

Optionally, the sun gear and the planet gear are both gears. The gear can transmit great effort to can prevent to take place to skid between sun gear and the planet wheel.

Optionally, the sun gear and the planet gear are both friction wheels. Noise generated when the rear roller assembly rotates can be reduced by the friction wheel transmission.

Optionally, the rear roller assembly further comprises a cross shaft frame, and two ends of the cross shaft are respectively fixedly connected with the cross shaft frame so as to prevent the cross shaft from rotating under the action of the sun gear.

Optionally, the rear roller assembly includes two inertia wheel mechanisms, a second end of the transverse shaft extends relative to the roller, and the two inertia wheel mechanisms are respectively located at the first end and the second end. Through setting up two inertia wheel mechanisms, make the rear roller subassembly of treadmill have two inertia wheels, improved the inertia when the rear roller subassembly rotates.

In a second aspect, a treadmill is provided that includes the rear roller assembly of the first aspect.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:

the utility model provides a be provided with flywheel mechanism on the treadmill rear roller assembly, when the treadmill begins operation, it is rotatory to run the area and drive the cylinder, the cylinder passes through planetary wheel subassembly transmission to flywheel, rear roller assembly simple structure, make the flywheel have great arrangement space, thereby can set up the flywheel that has bigger quality, inertia when rear roller assembly is rotatory has been increased, avoid the user when stepping into rotatory treadmill, appear skidding between cylinder and the race area, reduce the pause and contort in the treadmill use and feel. In addition, the inertia wheel with large volume is not required to be arranged on the front roller assembly of the running machine, so that the thickness of the running machine is reduced, and the running machine occupies smaller space and is more attractive.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a rear roller assembly of a treadmill according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a rear roller assembly of a treadmill taken along the direction A-A provided by an embodiment of the present disclosure;

FIG. 3 is a schematic view of a rear roller assembly of a treadmill according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional view of a rear roller assembly of a treadmill taken along the direction B-B in accordance with an embodiment of the present disclosure;

FIG. 5 is a schematic view of another treadmill rear roller assembly according to an embodiment of the present disclosure.

The reference numerals in the drawings denote:

1-a rear roller assembly;

11-a roller; 12-horizontal axis; 13-a planetary wheel assembly; 14-a cross shaft bracket; 15-inertia wheel;

131-a sun gear; 132-a planet wheel; 133-planet carrier; 134-a first bracket; 135-a second bracket; 136-a first bearing; 137-a second bearing; 138-planet wheel shaft; 151-cylinder; 152-inner flange; 153-a first opening; 154-a second opening;

2, running the belt;

3-front roller assembly.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference to orientation terms in the embodiments of the present disclosure, such as "upper," "lower," "side," and the like, are generally based on the relative relationship of the orientations shown in fig. 1, and these orientation terms are used merely for clarity of description of the structures and the relationship between the structures, and are not used for describing absolute orientations. When the product is placed in different postures, the orientation may be changed, for example, "up" and "down" may be interchanged.

Fig. 1 is a schematic view of a rear roller assembly of a running machine according to an embodiment of the present disclosure, and as shown in fig. 1, a running belt 2 is wrapped around a front roller assembly 3 and a rear roller assembly 1 at its front and rear ends, respectively.

FIG. 2 is a cross-sectional view of the rear roller assembly of the treadmill of FIG. 1 taken along the direction A-A. As shown in fig. 2, the rear roller assembly 1 includes a roller 11, a transverse shaft 12 and at least one inertia wheel mechanism, the transverse shaft 12 is coaxially located in the roller 11, at least a first end of the transverse shaft extends out relative to the roller 11, the at least one inertia wheel mechanism is located at the first end, the inertia wheel mechanism includes a planet wheel assembly 13 and an inertia wheel 15, and the planet wheel assembly 13 is sleeved outside the transverse shaft 12. The planet wheel assembly 13 is respectively connected with the transverse shaft 12 and the roller 11, and the inertia wheel 15 is sleeved outside the planet wheel assembly 13 and is in transmission connection with the roller 11 through the planet wheel assembly 13.

The application provides a be provided with flywheel mechanism on the roller assembly behind treadmill, rear roller assembly 1's simple structure, flywheel 15 has bigger arrangement space to can arrange the bigger flywheel 15 of quality and volume. When the treadmill runs, the running belt drives the roller 11 to rotate, and the roller 11 drives the inertia wheel 15 with large mass to rotate through the planet wheel assembly 13. The user can make in the twinkling of an eye of stepping on running area 2 and run 2 instantaneous rotational speeds and reduce, and flywheel 15 can increase the inertia of back drum assembly 1 rotation this moment, and cylinder 11 passes through frictional force and drives running area 2 to reduce the range that 2 instantaneous speeds in running area change, thereby reduce the pause and frustrate of user experience and feel, and reduce the risk that the running area skidded. By arranging the inertia wheel 15 with large mass on the rear roller assembly 1 of the treadmill, the inertia wheel with large volume does not need to be arranged in the front roller assembly 3 of the treadmill, the thickness of the treadmill is reduced, and the treadmill occupies smaller space and is more beautiful.

In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

As shown in fig. 2, the rear roller assembly 1 includes a roller 11, a transverse shaft 12 and at least one inertia wheel mechanism, the transverse shaft 12 is located in the roller 11, the running belt 2 is wound around the outer surface of the roller 11, the roller 11 is arranged coaxially with the transverse shaft 12, and the running belt 2 can drive the roller 11 to rotate around the transverse shaft 12. A first end of the transverse shaft 12 projects with respect to the roller 11, and the inertia wheel mechanism is located at the end of the transverse shaft 12 projecting from the roller 11. The inertia wheel mechanism comprises a planet wheel assembly 13 and an inertia wheel 15. The planetary gear assembly 13 is sleeved outside the transverse shaft 12, and the planetary gear assembly 13 is respectively connected with the drum 11 and the transverse shaft 12 so that the drum 11 can rotate relative to the transverse shaft 12. The inertia wheel 15 is sleeved outside the planet wheel assembly 13 and is in transmission connection with the roller 11 through the planet wheel assembly 13, when the roller 11 rotates, the inertia wheel 15 also rotates along with the roller 11, or when the inertia wheel 15 rotates, the roller 11 rotates along with the inertia wheel 15, and the inertia wheel 15 has larger mass and is used for increasing the inertia of the rear roller assembly 1 during rotation.

In some embodiments of the present disclosure, referring to fig. 2, the planetary gear assembly 13 includes a sun gear 131, a plurality of planetary gears 132 and a planetary carrier 133, the sun gear 131 is connected to the transverse shaft 12, the plurality of planetary gears 132 are distributed around the sun gear 131, the plurality of planetary gears 132 are respectively connected to the planetary carrier 133, the inertia wheel 15 is sleeved outside the plurality of planetary gears 132, the inner wall of the inertia wheel 15 is in contact with the plurality of planetary gears 132, and the planetary carrier 133 is connected to the drum 11. When the drum 11 is rotated by the running belt 2, the planetary carrier 133 is rotated simultaneously with the drum 11, thereby being transmitted to the flywheel 15 through the plurality of planetary gears 132 connected to the planetary carrier 133. The planet wheel assembly 13 has the advantages of compact structure, small occupied space, uniform load distribution and longer service life.

In some embodiments of the present disclosure, referring to fig. 2, the rear roller assembly 1 further includes a cross frame 14, and both ends of the cross shaft 12 are fixedly connected to the cross frame 14, respectively, to prevent the cross shaft 12 from rotating under the action of the sun gear 131.

The sun gear 131 is fixedly connected to the lateral shaft 12. Illustratively, the sun gear 131 may be disposed about the transverse shaft 12 in an interference fit with the transverse shaft 12. Alternatively, sun gear 131 may be integrally formed with cross shaft 12.

Referring to fig. 2, the carrier 133 includes a first carrier 134, a second carrier 135, and a plurality of planetary shafts 138, the first carrier 134 and the second carrier 135 are arranged at an interval, the plurality of planetary shafts 138 are located between the first carrier 134 and the second carrier 135, and both ends of each of the plurality of planetary shafts 138 are connected to the first carrier 134 and the second carrier 135, respectively. The first bracket 134 and the second bracket 135 are both sleeved outside the transverse shaft 12, the sun gear is positioned between the first bracket 134 and the second bracket 135, and the first bracket 134 is connected with the roller 11. The planetary wheels 132 are respectively sleeved outside the planetary wheel shafts 138, and the planetary wheels 132 are in clearance fit with the planetary wheel shafts 138.

Fig. 3 is a schematic view of the rear roller assembly 1 without the inertia wheel 15, and as shown in fig. 3, the inertia wheel mechanism further includes a first bearing 136, the first bearing 136 is sleeved outside the transverse shaft 12, and the first bearing 136 is located on a side of the planet wheel assembly 13 away from the roller 11. Referring to fig. 2, the inner race of the first bearing 136 is connected to the cross shaft 12 and the outer race of the first bearing 136 is connected to the flywheel 15. The first bearing 136 connects the transverse shaft 12 and the inertia wheel 15, so that the installation position of the inertia wheel 15 is more accurate, and the installation stability of the inertia wheel 15 is increased.

In some embodiments of the present disclosure, as shown in fig. 2, the inertia wheel 15 includes a cylinder 151 and an inner flange 152, the inner flange 152 is located at one end of the cylinder 151, the cylinder 151 is sleeved outside the planet wheel assembly 13, and the inner flange 152 is sleeved outside the first bearing 136. The inner wall of the cylinder 151 is in contact with the plurality of planet wheels 132, the inner flange 152 has a first opening 153, and the outer race of the first bearing 136 abuts against the inner wall of the first opening 153 to reduce the size of the first bearing 136 required to facilitate assembly of the first bearing 136 and the flywheel 15.

In some embodiments of the present disclosure, referring to fig. 2, the inertia wheel mechanism further includes a second bearing 137, the second bearing 137 is sleeved outside the transverse shaft 12 and is located on one side of the planetary wheel assembly 13 close to the drum 11, an inner ring of the second bearing 137 is connected to the transverse shaft 12, and an outer ring of the second bearing 137 is connected to the drum 11. The second bearing 137 is located in the gap between the end of the drum 11 and the transverse shaft 12, and plays a role of supporting the drum 11, so that the drum 11 rotates more smoothly. The cylinder 151 has a second opening 154, and the end of the drum 11 is inserted into the cylinder 151 through the second opening 154, so that the flywheel 15 can completely cover the starwheel assembly 13.

It should be noted that the inner diameter of the drum 11 and the diameter of the first opening 153 may be equal, so that the first bearing 136 and the second bearing 137 have the same size. Further, the first bearing 136 and the second bearing 137 may be the same type of bearing, and for example, as shown in fig. 2, the first bearing 136 and the second bearing 137 are both deep groove ball bearings.

FIG. 4 is a cross-sectional view of a rear roller assembly of a treadmill taken along the direction B-B in accordance with an embodiment of the present disclosure. As shown in fig. 4, there may be three planet wheels 132, and three planet wheels 132 are all installed between the first support 134 and the second support 135, and an included angle between a line connecting centers of any two planet wheels 132 and the center of the transverse shaft 12 is 120 °.

In some embodiments of the present disclosure, the sun gear 131 and the planet gear 132 are both gears, the inner wall of the cylinder 151 is provided with a gear ring engaged with the planet gear 132, the gear ring is integrally formed with the inertia wheel 15, and the sun gear 131, the planet gear 132 and the inertia wheel 15 are in gear transmission, so that a large acting force can be transmitted, and a slip between the sun gear 131 and the planet gear 132 can be prevented.

In some embodiments of the present disclosure, the sun gear 131 and the planet gear 132 are both friction gears, and the sun gear 131, the planet gear 132 and the inertia wheel 15 are driven by friction force, so that noise generated when the rear roller assembly 1 rotates can be reduced.

FIG. 5 is a schematic view of another treadmill rear roller assembly according to an embodiment of the present disclosure. As shown in fig. 5, the rear roller assembly 1 comprises two inertia wheel mechanisms each having the same structure as the inertia wheel mechanism shown in fig. 2 to 4, and the first and second ends of the roller 11 are protruded with respect to the roller 11, the two inertia wheel mechanisms being located at the first and second ends of the transverse shaft 12, respectively. By providing two inertia wheel mechanisms, the rear roller assembly 1 of the treadmill has two inertia wheels, and the inertia of the rear roller assembly 1 during rotation is further increased.

In addition, the disclosed embodiments also provide a treadmill including a running belt 2, a front roller assembly 3, and any one of the rear roller assemblies 1 shown in fig. 1-5. In addition, inertia wheels having a small volume may be provided in the front roller assembly 3 of the treadmill to further increase the inertia of the front roller assembly 3 and the rear roller assembly 1 when they rotate.

The rear roller assembly 1 of the treadmill is provided with the inertia wheel mechanism, the rear roller assembly 1 of the treadmill has a simple structure, and the inertia wheel 15 has a larger arrangement space, so that the inertia wheel 15 with larger mass and volume can be arranged. When the running machine starts to run, the running belt 2 drives the roller 11 to rotate, and the roller 11 drives the inertia wheel 15 with large mass to rotate through the planet wheel assembly 13. The user can make in the twinkling of an eye of stepping on running area 2 and run 2 instantaneous rotational speeds and reduce, and flywheel 15 can increase the inertia of back drum assembly 1 rotation this moment, and cylinder 11 passes through frictional force and drives running area 2 to reduce the range that 2 instantaneous speeds in running area change, thereby reduce the pause and frustrate of user experience and feel, and reduce the risk that the running area skidded. By arranging the inertia wheel 15 with large mass on the rear roller assembly 1 of the treadmill, the inertia wheel with large volume does not need to be arranged in the front roller assembly 3 of the treadmill, the thickness of the treadmill is reduced, and the treadmill occupies smaller space and is more beautiful.

Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meaning as commonly understood by one of ordinary skill in the art.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

Although the present invention has been described with reference to the above embodiments, it should be understood that the invention is not limited to the above embodiments, and various changes and modifications may be made by those skilled in the art without departing from the scope of the invention.

Claims (10)

1. A treadmill rear roller assembly, characterized in that the rear roller assembly (1) comprises a roller (11), a transverse shaft (12) and at least one inertia wheel mechanism;

the transverse shaft (12) is coaxially positioned in the roller (11) and at least a first end of the transverse shaft protrudes relative to the roller (11);

at least one inertia wheel mechanism is located first end, inertia wheel mechanism includes planet wheel subassembly (13) and inertia wheel (15), planet wheel subassembly (13) cover outside cross axle (12), with cross axle (12) with cylinder (11) link to each other respectively, inertia wheel (15) cover outside planet wheel subassembly (13), through planet wheel subassembly (13) with cylinder (11) transmission is connected.

2. The treadmill rear roller assembly according to claim 1, wherein the planetary wheel assembly (13) comprises a sun wheel (131), a plurality of planetary wheels (132), and a planet carrier (133), the sun wheel (131) is connected to the transverse shaft (12), the plurality of planetary wheels (132) are distributed around the sun wheel (131) and are respectively connected to the planet carrier (133), the inertia wheel (15) is sleeved outside the plurality of planetary wheels (132), the inner wall of the inertia wheel is in contact with the plurality of planetary wheels (132), and the planet carrier (133) is connected to the roller (11).

3. The treadmill rear roller assembly according to claim 2, wherein the inertia wheel mechanism further comprises a first bearing (136), the first bearing (136) is sleeved outside the transverse shaft (12) and is located on a side of the planet wheel assembly (13) away from the roller (11), an inner ring of the first bearing (136) is connected with the transverse shaft (12), and an outer ring of the first bearing is connected with the inertia wheel (15).

4. The treadmill rear roller assembly according to claim 3, wherein the inertia wheel (15) comprises a cylinder (151) and an inner flange (152), the inner flange (152) being located at one end of the cylinder (151), the cylinder (151) being sleeved outside the planet wheel assembly (13), the inner flange (152) being sleeved outside the first bearing (136).

5. The rear roller assembly of the treadmill according to claim 2, wherein the inertia wheel mechanism further comprises a second bearing (137), the second bearing (137) is sleeved outside the transverse shaft (12) and is located on one side of the planet wheel assembly (13) close to the roller (11), an inner ring of the second bearing (137) is connected with the transverse shaft (12), and an outer ring of the second bearing is connected with the roller (11).

6. The treadmill rear roller assembly of claim 2, wherein the sun gear (131) and the planet gears (132) are both gears.

7. The treadmill rear roller assembly of claim 2, wherein the sun wheel (131) and the planet wheels (132) are friction wheels.

8. The treadmill rear roller assembly according to claim 1, wherein the rear roller assembly (1) further comprises a cross axle frame (14), wherein both ends of the cross axle (12) are fixedly connected with the cross axle frame (14), respectively.

9. A treadmill rear roller assembly according to any of claims 1-8, wherein the rear roller assembly (1) comprises two said inertia wheel mechanisms, the second end of the transverse shaft (12) extending opposite the roller (11), the two said inertia wheel mechanisms being located at the first and second ends, respectively.

10. A treadmill, characterized in that it comprises a rear roller assembly (1) according to any of claims 1-9.

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