CN214367590U - Improved structure of roller gear - Google Patents
Improved structure of roller gear Download PDFInfo
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- CN214367590U CN214367590U CN202022858453.1U CN202022858453U CN214367590U CN 214367590 U CN214367590 U CN 214367590U CN 202022858453 U CN202022858453 U CN 202022858453U CN 214367590 U CN214367590 U CN 214367590U
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- 230000005540 biological transmission Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides an improvement structure of roller gear, its technically important characterized in that makes the roller both ends and the bearing of wearing the cover imbed respectively on two tip and be coaxial corresponding to each other in the through-hole in pairs to make when the equipment adds man-hour, can imbed the corresponding through-hole in advance with the bearing earlier, make the roller axle insert the bearing of coaxial corresponding each other in the single direction again, according to simplifying the equipment processing operation, reach the promotion of efficiency.
Description
Technical Field
The present invention relates to transmission technology, and is especially one improved roller gear structure.
Background
Although the application of roller rollers as transmission elements belongs to the known technology, the prior art disclosed in taiwan patent No. I665398, for example, is that roller bearings are embedded on the opposite end surfaces of two ring-shaped supporting bodies, and a roller is inserted between the two supporting bodies, and then both ends of the roller are inserted into the corresponding roller bearings, so as to form the whole roller gear.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is a primary object of the present invention to provide an improved structure of a roller gear, which is simplified in structure, facilitates assembly and processing, and improves manufacturing efficiency.
Therefore, in order to achieve the above objects, the present invention provides an improved structure of a roller gear, which is technically characterized in that two ends of a roller and a bearing inserted therein are respectively inserted into a pair of through holes coaxially corresponding to each other at the two ends, so that during assembly, the bearing is inserted into the corresponding through hole in advance, and then a roller shaft is inserted into the bearings coaxially corresponding to each other in a single direction, thereby simplifying the assembly and processing operation and improving the efficiency.
Furthermore, for each roller inserted in each bearing, a proper limit location is provided to avoid the excessive movement of each roller in the axial direction, so that the improved structure of the roller gear further comprises two stop parts, each stop part is respectively and fixedly arranged on the opposite end sides of each end part, and a stop is formed in the hole axial direction of each through hole, so that each roller is clamped between each stop part.
Furthermore, in order to further provide positioning in assembly processing, each through hole is sequentially divided into a large-aperture section, a small-aperture section and an annular shoulder surface between the large-aperture section and the small-aperture section from one end to the other end along the hole axis direction of the through hole.
By means of the hole shape of each through hole, each through hole can be adjacent to each stop part through a large-aperture section, so that the large-aperture section of each through hole is respectively arranged between the small-aperture section and the adjacent stop part, and each bearing is embedded in the large-aperture section of each through hole, so that two ends of each bearing can be limited by the corresponding stop part and the annular shoulder surface respectively, and the positioning effect of fixing the position of the bearing is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a first preferred embodiment of the present invention.
Fig. 2 is an exploded view of the first preferred embodiment of the present invention.
Fig. 3 is a sectional view of the first preferred embodiment of the present invention taken along line 3-3 of fig. 1.
Fig. 4 is a sectional view of the first preferred embodiment of the present invention taken along the line 4-4 of fig. 1.
Fig. 5 is a perspective view of a second preferred embodiment of the present invention.
Fig. 6 is a cross-sectional view of the second preferred embodiment of the present invention taken along line 6-6 of fig. 5.
Wherein, 10a roller gear improved structure; 20. 20a wheel seat; 21 a columnar shaft portion; 22. 22a, 23 ends; 232 small aperture section; 24. 25, through holes; 242. 252 small pore diameter section; 243. 253 annular shoulder surface; 26a caulking groove; 241. 251 a large pore diameter section; a needle bearing of 30 or more; 31 a shaft sleeve; a 32-pin nest; 33, rolling needles; 40 majority of rollers; 50. 50a two stop members.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 4, in a first preferred embodiment of the present invention, an improved roller gear 10 is provided, which mainly comprises a wheel base 20, a plurality of needle bearings 30, a plurality of rollers 40 and two stoppers 50.
The wheel seat 20 is a cylindrical shaft 21 with a suitable length, two annular sheet- shaped end portions 22, 23 are coaxially and partially disposed on the shaft 21, a plurality of through holes 24, 25 are sequentially and equidistantly spaced along the circumference of the shaft 21 and respectively pass through the end portions 22, 23, and in the embodiment, the through holes 24, 25 which are coaxially and correspondingly disposed on the end portions 22, 23 are defined as being paired with each other;
furthermore, the aperture size of each through hole 24, 25 is further sequentially divided into a large aperture section 241, 251, a small aperture section 242, 252 and an annular shoulder surface 243, 253 between the large aperture section 241, 251 and the small aperture section 242, 252 along the hole axis thereof from one end of the hole axis to the other end, wherein, with respect to each through hole 24, 25 in pairs, the large aperture section 241, 251 of each through hole 24, 25 in pairs is further located at the end of the hole axis away from each other, i.e., each small aperture section 242, 252 is located between the large aperture sections 241, 251.
The needle roller bearings 30 are coaxially embedded in the large- aperture sections 241, 251 of the through holes 24, 25 respectively, and one end of each needle roller bearing abuts against the adjacent annular shoulder surfaces 243, 253, and the other end of each needle roller bearing is positioned on the aperture openings of the large- aperture sections 241, 251; from the structural point of view, each needle roller is provided with a tubular sleeve 31, the outer diameter of the tubular sleeve is similar to the bore diameter of the large- bore sections 241 and 251, a plurality of strip-shaped groove-shaped needle sockets 32 are parallel to the tubular shaft of the sleeve 31 and are separately arranged on the inner tubular wall of the sleeve 31 in a mutually spaced mode, a plurality of needle rollers 33 are respectively filled in each needle socket 32, and the needle rollers 33 can rotate in the needle sockets.
Each roller 40 is a straight cylinder with an outer diameter smaller than the inner diameter of the small-bore section 232, 252, and is inserted into the needle bearing at the end 22 with one end, and then is axially displaced and inserted into the needle bearing at the end 23, so that the two ends of each roller 40 are respectively combined with the needle bearings 30 in the paired through holes 24, 25 in a rolling manner. In addition, the needle bearings 30 may be other types of bearings, such as ball bearings or roller bearings, which can be inserted into the corresponding through holes 24, 25 and also serve to support, guide and limit the movement of the roller 40.
The stoppers 50 are respectively in a sheet shape, and are respectively attached to the opposite end sides of the end portions 22, 23 by a side sheet surface, and the stoppers 50 are fixed to the end portions 22, 23 by a proper combination means to respectively close the respective large- aperture section 241, 251 hole openings of the paired through holes 24, 25, so as to clamp the rollers 40 between the stoppers 50, thereby limiting the axial movement of the rollers 40 and ensuring the normal operation of the roller wheel.
Referring to fig. 5 and 6, the present invention provides an improved structure 10a of roller gear, which is substantially the same as that provided in the first preferred embodiment, and the difference therebetween is that in the present embodiment, the outer diameter of the end portion 22a is increased, and the outer diameter of the stop member 50a corresponding to the end portion 22a with increased outer diameter is decreased, and the wheel seat 20a further has an annular slot 26a recessed on a side surface of the end portion 22a for embedding the stop member 50a, so that the stop member 50a is embedded in the slot 26a and is fixed to the end portion 22a, thereby increasing the mechanical strength of the combination between the two, and the roller gear can bear larger load to improve the product reliability.
In summary, the improved structure of the roller gear provided by the present invention is more refined than the conventional art in structure, not only can simplify the components, but also has great benefit for the assembly process and the efficiency improvement, and the gear composed of simplified components can reduce the possibility of damage, which is helpful to improve the reliability of the product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An improved structure of roller gear, characterized in that, it comprises:
a wheel seat, which has two mutually separated and parallel end parts, and a plurality of mutually paired through holes are coaxially and respectively penetrated on the end parts;
a plurality of bearings embedded in the through holes and embedded in the end parts;
the rollers coaxially penetrate through the bearings at two ends of the two column shafts respectively, and are bridged between the ends so that the ring surfaces of the peripheral sides of the two ends of the column shafts are connected with the ring surfaces of the bearings, and the rollers move in the axial direction of the column shafts without being limited by the bearings;
two stop parts fixed on the end parts and between the rollers to stop the axial shift of the rollers by the stop parts.
2. The improved roller gear structure as defined in claim 1, wherein each of said through holes is sequentially divided along its own hole axis into a large-diameter section, a small-diameter section and an annular shoulder surface between said large-diameter section and said small-diameter section.
3. An improved roller gear structure according to claim 2, wherein the pairs of coaxial through holes have respective annular shoulder surfaces facing away from each other, such that the large-diameter sections of the pairs of through holes are located on the end sides of the end portions facing away from each other, respectively, between the respective stopper members and the respective annular end surfaces.
4. The improved roller gear structure as defined in claim 3, wherein each of said bearings is embedded in the large-bore section of each of said through holes, and has one axial end abutting against said annular shoulder surface and the other axial end abutting against the corresponding stopper.
5. The improved structure of roller gears as defined in claim 1 wherein each of said ends is disk-shaped and is coaxial and spaced from each other.
6. The improved roller gear structure as defined in claim 5, wherein said wheel base further includes a shaft portion bridging each of said ends.
7. The improved structure of roller gears as defined in claim 6 wherein each of said end portions and said shaft portion are integrally formed with each other.
8. An improved structure of a roller gear as defined in claim 1, 2, 3 or 4, wherein each of said stoppers is formed in a plate shape and is attached to the end sides of said end portions opposite to each other.
9. The improved roller gear set according to claim 8, wherein said wheel seat has a groove recessed in a side of either of said end portions and engaging with either of said plate-like stoppers.
10. An improved structure of a roller gear as defined in claim 1, wherein each of said bearings is a needle bearing and has a tubular sleeve, a plurality of needle pockets are formed in the inner wall of said sleeve in parallel and spaced apart from each other and extend in the axial direction of said sleeve for a predetermined length, and a plurality of needles are rotatably inserted into said needle pockets, respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108217233 | 2019-12-25 | ||
| TW108217233U TWM597347U (en) | 2019-12-25 | 2019-12-25 | Improved structure of roller gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367590U true CN214367590U (en) | 2021-10-08 |
Family
ID=72177946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022858453.1U Active CN214367590U (en) | 2019-12-25 | 2020-12-02 | Improved structure of roller gear |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214367590U (en) |
| TW (1) | TWM597347U (en) |
-
2019
- 2019-12-25 TW TW108217233U patent/TWM597347U/en unknown
-
2020
- 2020-12-02 CN CN202022858453.1U patent/CN214367590U/en active Active
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| Publication number | Publication date |
|---|---|
| TWM597347U (en) | 2020-06-21 |
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