TWM626445U - Outer rotor with outer ring of one-way bearing - Google Patents

Abstract

An outer rotor configured with a one-way bearing outer ring includes a one-way bearing outer ring and an outer rotor, the one-way bearing outer ring includes an outer ring side plate, and an outer ring surrounding the outer side of the outer ring side plate. a ring surrounding wall, the outer ring side plate and the outer ring surrounding wall jointly define an outer ring accommodating space that is open to one side in the extension direction of an axis, the outer rotor is injection-molded on the outer side of the outer ring surrounding wall and the outer ring surrounding wall The side of the side plate opposite to the accommodating space of the outer ring makes the outer ring of the one-way bearing and the outer rotor integrally formed, and the outer rotor includes an adjacent side plate of the outer ring opposite to the accommodating space of the outer ring. An inner ring portion on one side and surrounding the axis, and an outer ring portion surrounding the outer side of the outer ring surrounding wall and connecting the inner ring portion, facilitates fabrication, improves structural strength, and reduces assembly deviation.

Description

Outer rotor with one-way bearing outer ring

The new model relates to a bicycle part, in particular to an outer rotor equipped with a one-way bearing outer ring.

An existing one-way bearing set for bicycles includes a bearing member and an outer rotor ring arranged outside the bearing member, the bearing member has an inner ring, an outer ring surrounding between the inner ring and the outer rotor a ring, and a roller arranged between the inner ring and the outer ring. When the outer rotor rotates, the outer ring rotates relative to the inner ring through the roller.

During assembly, attention must be paid to the relative positions of the outer rotor, the outer ring, the rollers and the inner ring. A slight deviation will cause noise problems such as slippage or unsmooth running. In addition, before assembly, the first dynamic balance correction corresponding to the outer rotor needs to be carried out, so that the overall assembly cost is high and time-consuming. To reduce the balance error of the outer rotor, and after assembly, a second dynamic balance correction corresponding to the whole should be performed. If the first dynamic balance correction is not performed, the accumulated error may lead to the second dynamic balance correction. The deviation of time is too large and it is difficult to correct, so the assembly procedure is also more complicated.

Therefore, the object of the present invention is to provide an outer rotor equipped with a one-way bearing outer ring which overcomes the disadvantages described in the prior art.

Therefore, the present invention is equipped with a one-way bearing outer ring and an outer rotor, which is applied to a one-way bearing inner ring and a one-way bearing roller. The one-way bearing inner ring has an inner ring surrounding wall surrounding an axis. The bearing rollers surround the outer side of the inner ring surrounding wall, and the outer rotor equipped with the one-way bearing outer ring includes a one-way bearing outer ring and an outer rotor.

The outer ring of the one-way bearing includes an outer ring side plate surrounding the axis, and an outer ring surrounding wall surrounding the outer side of the outer ring side plate. The outer ring side plate and the outer ring surrounding wall jointly define a direction toward the axis. An outer ring accommodating space open on one side of the extension direction of the outer ring, the outer ring accommodating space is used to accommodate the one-way bearing inner ring and the one-way bearing rollers so that the outer ring surrounding wall surrounds the one-way bearing The outer side of the roller, the outer rotor is injection-molded on the outer side of the outer ring surrounding wall and the side of the outer ring side plate opposite to the outer ring accommodating space, so that the one-way bearing outer ring and the outer rotor are integrally formed. The outer rotor includes an inner ring portion adjacent to the side of the outer ring side plate opposite to the outer ring accommodating space and surrounding the axis, and an outer ring surrounding the outer side of the outer ring surrounding wall and connecting the inner ring portion department.

The effect of the present invention is: by arranging the one-way bearing outer ring and the outer rotor which is injection-molded on the outer side of the outer ring surrounding wall and the side of the outer ring side plate opposite to the outer ring accommodating space, so that It is convenient to process during production, reduce the deviation during assembly, and reduce the dynamic balance effect time.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated by the same reference numerals.

1, 2, and 3, a first embodiment of the present invention is provided with an outer rotor of a one-way bearing outer ring, applied to a one-way bearing inner ring 91 and a one-way bearing roller 92, the one-way bearing The inner ring 91 has an inner ring surrounding wall 911 surrounding an axis L, and the one-way bearing roller 92 surrounds the outer side of the inner ring surrounding wall 911 .

The outer rotor with one-way bearing outer ring includes a one-way bearing outer ring 2 and an outer rotor 3 .

The one-way bearing outer ring 2 includes an outer ring side plate 21 surrounding the axis L, and an outer ring surrounding wall 22 surrounding the outer side of the outer ring side plate 21. The outer ring side plate 21 and the outer ring surrounding wall 22 together define an outer ring accommodating space 23 that is open to one side of the extension direction of the axis L, and the outer ring accommodating space 23 is used to accommodate the one-way bearing inner ring 91 and the one-way bearing roller 92 to The outer ring surrounding wall 22 surrounds the outer side of the one-way bearing roller 92 .

The one-way bearing outer ring 2 is made of wear-resistant steel.

The outer rotor 3 is injection-molded on the outer side of the outer ring surrounding wall 22 and the side of the outer ring side plate 21 opposite to the outer ring accommodating space 23 so that the one-way bearing outer ring 2 and the outer rotor 3 are integrally formed .

The outer rotor 3 includes an inner ring portion 31 adjacent to the outer ring side plate 21 opposite to the outer ring accommodating space 23 and surrounding the axis L, and an inner ring portion 31 surrounding the outer ring surrounding wall 22 and connected The outer ring portion 32 of the inner ring portion 31 .

The outer rotor 3 is injection-molded with plastic material or aluminum material.

A side of the outer ring surrounding wall 22 opposite to the outer ring accommodating space 23 is a smooth surface.

During manufacture, the outer rotor 3 is injection-molded with the one-way bearing outer ring 2 as the base. Due to the low precision and ease of processing required for injection molding, the combined structure of the two is also relatively simple. Compared with the prior art, when combining two dissimilar components, attention must be paid to adopting high-precision operation to avoid the occurrence of errors. The outer rotor equipped with the one-way bearing outer ring obviously has the advantages of convenient manufacturing and reducing deviation during assembly. advantage.

In addition, compared with the prior art, the components are assembled separately, resulting in a partial balance difference after assembly, so the first dynamic balance correction must be performed. The position of the injection-molded outer rotor 3 relative to the one-way bearing outer ring 2 is fixed, so the resulting balance differences are all the same, so the first dynamic balance correction can be omitted, and only the one-way bearing inner ring needs to be adjusted. After 91 and the one-way bearing roller 92 are assembled, an overall dynamic balance adjustment can be performed, so the dynamic balance effect time can be reduced.

Referring to FIG. 4 , in another embodiment, the side of the outer ring surrounding wall 22 opposite to the outer ring accommodating space 23 can also be designed as an embossed surface, so that the bonding during injection molding is higher.

Referring to FIG. 5, a second embodiment of the present invention is similar to the first embodiment, with the following differences:

A side of the outer ring surrounding wall 22 opposite to the outer ring accommodating space 23 is a smooth surface.

The outer rotor 3 further includes a protruding ring portion 33 protruding from the outer ring portion 32 toward the axis L and located on a side of the outer ring surrounding wall 22 opposite to the inner ring portion 31 .

In this way, the second embodiment can also achieve the same purpose and effect as the above-mentioned first embodiment, and the outer ring surrounding wall 22 can be restrained from falling off by the convex ring portion 33, thereby further enhancing the structural strength.

To sum up, by arranging the one-way bearing outer ring 2 , and by injection molding the outer ring on the outer side of the outer ring surrounding wall 22 and the side of the outer ring side plate 21 opposite to the outer ring accommodating space 23 The rotor 3 makes it easy to process during manufacture, reduces the deviation during assembly, and reduces the dynamic balance effect time, so it can indeed achieve the purpose of this new model.

However, the above are only examples of the present invention, which should not limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application for this new model and the contents of the patent specification are still within the scope of the present invention. within the scope of this patent.

2: One-way bearing outer ring 21: Outer ring side plate 22: Outer Ring Surrounding Wall 23: Outer ring accommodation space 3: Outer rotor 31: Inner ring 32: Outer ring 33: Convex part 91: One-way bearing inner ring 911: Inner Ring Surround Wall 92: one-way bearing roller L: axis

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: Fig. 1 is a schematic diagram of use of a first embodiment of the present invention equipped with a one-way bearing outer ring outer rotor; Fig. 2 is a perspective view of this embodiment; Fig. 3 is a sectional schematic diagram of this embodiment; FIG. 4 is a view similar to FIG. 3 illustrating another embodiment; and Fig. 5 is a schematic cross-sectional view of a second embodiment of the present invention equipped with a one-way bearing outer ring outer rotor.

2: One-way bearing outer ring

21: Outer ring side plate

22: Outer Ring Surrounding Wall

23: Outer ring accommodation space

3: Outer rotor

31: Inner ring

32: Outer ring

L: axis

Claims (6)

An outer rotor equipped with a one-way bearing outer ring is applied to a one-way bearing inner ring and a one-way bearing roller, the one-way bearing inner ring has an inner ring surrounding wall surrounding an axis, and the one-way bearing roller The rotor surrounds the outer side of the inner ring surrounding wall, the outer rotor of the outer ring configured with a one-way bearing includes: A one-way bearing outer ring, comprising an outer ring side plate surrounding the axis, and an outer ring surrounding wall surrounding the outer side of the outer ring side plate, the outer ring side plate and the outer ring surrounding wall jointly define a direction toward the outer ring side plate. An outer ring accommodating space open on one side of the extension direction of the axis, the outer ring accommodating space is used for accommodating the one-way bearing inner ring and the one-way bearing rollers so that the outer ring surrounding wall surrounds the one-way bearing the outside of the bearing rollers; and An outer rotor is injection-molded on the outer side of the outer ring surrounding wall and the side of the outer ring side plate opposite to the outer ring accommodating space, so that the one-way bearing outer ring and the outer rotor are integrated, and the outer rotor includes An inner ring portion adjacent to the outer ring side plate opposite to the outer ring accommodating space and surrounding the axis, and an outer ring portion surrounding the outer side of the outer ring surrounding wall and connected to the inner ring portion. The outer rotor equipped with a one-way bearing outer ring as claimed in claim 1, wherein the one-way bearing outer ring is made of wear-resistant steel. The outer rotor provided with the one-way bearing outer ring according to claim 1, wherein the outer rotor is injection-molded with plastic material or aluminum material. The outer rotor equipped with the one-way bearing outer ring according to claim 1, wherein the side of the outer ring surrounding wall opposite to the outer ring accommodating space is a smooth surface. The outer rotor equipped with the one-way bearing outer ring according to claim 1, wherein the side of the outer ring surrounding wall opposite to the outer ring accommodating space is an embossed surface. The outer rotor equipped with a one-way bearing outer ring as claimed in claim 1, wherein the outer rotor further comprises a protruding portion from the outer ring portion toward the axis and located opposite the inner ring portion relative to the surrounding wall of the outer ring. cam on one side.

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