CN114688154A - Sprocket bearing, transmission mechanism and transmission mechanism - Google Patents

Sprocket bearing, transmission mechanism and transmission mechanism Download PDF

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Publication number
CN114688154A
CN114688154A CN202210202210.3A CN202210202210A CN114688154A CN 114688154 A CN114688154 A CN 114688154A CN 202210202210 A CN202210202210 A CN 202210202210A CN 114688154 A CN114688154 A CN 114688154A
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CN
China
Prior art keywords
outer ring
core body
inner rings
arc
rollers
Prior art date
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Granted
Application number
CN202210202210.3A
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Chinese (zh)
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CN114688154B (en
Inventor
唐元超
王爱红
郭祥飞
靳祖孟
张阴坡
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Shandong Zhaoyang Bearing Co ltd
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Shandong Zhaoyang Bearing Co ltd
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Priority to CN202210202210.3A priority Critical patent/CN114688154B/en
Publication of CN114688154A publication Critical patent/CN114688154A/en
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Publication of CN114688154B publication Critical patent/CN114688154B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/361—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention belongs to the field of bearings, and particularly relates to a chain wheel bearing, a transmission mechanism and a transmission mechanism, wherein the chain wheel bearing comprises: an outer ring made of a flexible material; the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring; the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body; and at least two inner rings are arranged on each inner ring, each inner ring is positioned at the edge of the core body, partial area of the outer ring surface of each inner ring is in sliding fit with the arc-shaped groove arranged at the edge of the core body, and the area of the outer ring surface of each inner ring, which is positioned outside the arc-shaped groove, is in rolling fit with the roller. The invention realizes that one bearing is simultaneously provided with two parallel rotating shafts, reduces the installation gap between the adjacent rotating shafts and leads the structure of a rotating mechanism applying the bearing to be more compact.

Description

Sprocket bearing, transmission mechanism and transmission mechanism
Technical Field
The invention belongs to the field of bearings, and particularly relates to a chain wheel bearing, a transmission mechanism and a transmission mechanism.
Background
The bearing is the transmission part that machinery field is commonly used, traditional bearing is circular structure generally, a pivot can only be installed to every bearing, in addition, the bearing is generally installed on the bearing frame, this radial installation space that just leads to single pivot is great, hardly realize the inseparable range of many pivots, hardly satisfy the transmission demand under some special application scenes, for example in boats and ships paddle drive process, the pivot that generally adopts many parallel arrangement replaces an independent pivot to carry out the transmission, can make the transmission efficiency of pivot unit sectional area improve like this, reduce the pivot processing degree of difficulty simultaneously, therefore, the cost is reduced, many pivot parallel arrangement can lead to radial installation space too big again, bring huge difficult problem for boats and ships structural design. In addition, the structural layout of the conveying mechanisms such as the conveying belt in the prior art is also scattered, a large gap exists between the components, a pause phenomenon is easily generated, the conveying efficiency is low, and the components are easily worn, so that a conveying mechanism with a more compact structure is also needed to solve the above problems.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a sprocket bearing, a transmission mechanism and a transmission mechanism which are more compact.
To achieve the above and other related objects, the present invention provides a sprocket bearing comprising:
an outer ring made of a flexible material;
the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring;
the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body; and
the inner rings are arranged at least two and are positioned at the edge of the core body, partial areas of the outer ring surfaces of the inner rings are in sliding fit with the arc-shaped grooves formed in the edge of the core body, and the areas of the outer ring surfaces of the inner rings, which are positioned outside the arc-shaped grooves, are in rolling fit with the rollers.
In an optional embodiment of the present invention, the arc surface of the arc groove is tangent to the outer walls of the core at both ends of the arc groove, so that when the inner ring is placed in the arc groove, the outer ring surface of the inner ring and the surface of the core form a smooth outer contour.
In an optional embodiment of the present invention, two sides of the annular clamping cavity are respectively provided with a retainer having a contour that is consistent with the annular clamping cavity, the retainer is relatively and fixedly connected with the core body, and two ends of the roller are in blocking contact with an inner side of the retainer, so that the roller is limited in the annular clamping cavity.
In an optional embodiment of the present invention, there are two inner rings, two inner rings are respectively located at two ends of the core, and an assembly formed by the two inner rings and the core has a kidney-shaped outer profile.
In an optional embodiment of the present invention, there are three inner rings, central points of the three inner rings are distributed in a triangular shape, and an assembly formed by the three inner rings and the core body has a rounded triangular outer profile.
In an alternative embodiment of the invention, the outer ring is made of rubber.
In an alternative embodiment of the invention, the roller is cylindrical, the axis of the roller being parallel to the axis of the inner ring.
To achieve the above and other related objects, the present invention also provides a transmission mechanism, comprising:
an outer ring made of a flexible material;
the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring;
the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body;
the inner rings are arranged at least two and are positioned at the edge of the core body, partial areas of the outer ring surfaces of the inner rings are in sliding fit with the arc-shaped grooves arranged at the edge of the core body, and the areas of the outer ring surfaces of the inner rings, which are positioned outside the arc-shaped grooves, are in rolling fit with the rollers;
and at least two rotating shafts are arranged, and each rotating shaft is inserted into each inner ring respectively so as to ensure that each rotating shaft is synchronously and rotatably connected with each inner ring respectively.
The driving mechanism comprises a rotating shaft, and is characterized by further comprising an input shaft and an output shaft, wherein a first driving gear is arranged on the input shaft, a first driven gear is arranged at one end of each rotating shaft, a second driving gear is arranged at the other end of each rotating shaft, a second driven gear is arranged on the output shaft, the first driving gear is meshed with each first driven gear, and each second driving gear is meshed with the second driven gear.
To achieve the above and other related objects, the present invention also provides a transfer mechanism comprising:
the outer ring is made of flexible materials, and a first tooth-shaped surface is arranged on the outer ring surface of the outer ring;
the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring;
the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body;
the inner rings are arranged at least two and are positioned at the edge of the core body, partial areas of the outer ring surfaces of the inner rings are in sliding fit with the arc-shaped grooves arranged at the edge of the core body, and the areas of the outer ring surfaces of the inner rings, which are positioned outside the arc-shaped grooves, are in rolling fit with the rollers;
and a second tooth-shaped surface is arranged on the wheel surface of the driving wheel and is meshed with the first tooth-shaped surface.
The invention has the technical effects that:
at least two inner rings share one outer ring, and the roller can reciprocate between the two inner rings, so that two parallel rotating shafts are simultaneously installed on one bearing, the installation gap between the adjacent rotating shafts is reduced, and the structure of a rotating mechanism using the bearing is more compact.
The outer ring is made of flexible materials, can adapt to the special-shaped profile formed by the inner ring and the core body, avoids the problems of large processing error and assembly error when rigid materials are used, and avoids roller jumping; in addition, because the outer ring is flexible, the contact surface between the roller and the outer ring is enlarged, the lubrication condition is improved, the transmission efficiency is improved, and the transmission is smoother.
The transmission mechanism of the invention disperses the power of the input shaft to the plurality of rotating shafts, can improve the transmission efficiency of the unit sectional area of the rotating shafts, reduces the processing difficulty of the rotating shafts and further reduces the cost.
Compared with the traditional transmission device, the transmission device has a more compact structure, improves the lubrication condition, improves the transmission efficiency and smoothes the transmission.
Drawings
FIG. 1 is a cross-sectional view of a sprocket bearing provided in one embodiment of the present invention;
FIG. 2 is a cross-sectional view of a sprocket bearing provided in another embodiment of the present invention;
FIG. 3 is a schematic diagram of a transmission provided by an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a transport mechanism provided by an embodiment of the present invention;
fig. 5 is an enlarged view of part I of fig. 4.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, a sprocket bearing includes an outer race 10, a core 20, rollers 30, and an inner race 40; the outer ring 10 is made of flexible material; the core body 20 is positioned on the inner side of the outer ring 10, and an annular clamping cavity is formed between the core body 20 and the outer ring 10; a plurality of rollers 30 are arranged, each roller 30 is located in the annular clamping cavity, and the rollers 30 are in rolling fit with the outer ring 10 and the core body 20; at least two inner rings 40 are arranged, each inner ring 40 is positioned at the edge of the core body 20, a partial area of the outer annular surface of each inner ring 40 is in sliding fit with the arc-shaped groove arranged at the edge of the core body 20, and the area of the outer annular surface of each inner ring 40, which is positioned outside the arc-shaped groove, is in rolling fit with the roller 30.
It can be understood that at least two inner rings 40 in the present invention share one outer ring 10, and the roller 30 can reciprocally circulate between the two inner rings 40, so as to realize that one bearing simultaneously mounts two parallel rotating shafts, reduce the mounting gap between adjacent rotating shafts, and make the structure of the rotating mechanism using the bearing more compact. The outer ring 10 is made of flexible materials, can adapt to the special-shaped profile formed by the inner ring 40 and the core body 20, avoids the problems of large processing error and assembly error when rigid materials are used, and avoids the roller 30 from jumping; in addition, because the outer ring 10 is flexible, the contact surface between the rollers 30 and the outer ring 10 is increased, the lubrication condition is improved, the transmission efficiency is improved, and the transmission is smoother.
Referring to fig. 1, in an embodiment, the arc surface of the arc groove is tangent to the outer walls of the core 20 at two ends of the arc groove, so that when the inner ring 40 is disposed in the arc groove, the outer ring surface of the inner ring 40 and the surface of the core 20 form a smooth outer contour. It can be understood that due to the limitation of processing precision, the arc-shaped groove and the outer wall of the core 20 may not be in tangential abutment, and a certain chamfer or fillet is generally reserved at both ends of the arc-shaped groove, therefore, the tangency of the arc-shaped groove of the invention and the outer wall of the core 20 at both ends of the arc-shaped groove should not be understood as a strict geometric tangency, but should be combined with the general knowledge of those skilled in the art, taking fig. 1 as an example, as long as the arc-shaped grooves at both sides of the core 20 are ensured to be approximately tangent to the horizontal planes at the upper and lower ends of the core 20.
Referring to fig. 1, in a specific embodiment, two sides of the annular clamping cavity are respectively provided with a retainer 50 having a contour that is consistent with that of the annular clamping cavity, the retainer 50 is relatively and fixedly connected with the core body 20, and two ends of the roller 30 are in contact with an inner side of the retainer 50, so that the roller 30 is limited in the annular clamping cavity.
Referring to fig. 1, in an embodiment, two inner rings 40 are provided, the two inner rings 40 are respectively located at two ends of the core 20, and an assembly formed by the two inner rings 40 and the core 20 has a kidney-circular outer profile. It is understood that the present embodiment is applicable to the case where two shafts are installed adjacently, the outer sides of the two inner rings 40 are in rolling engagement with the rollers 30, and the inner sides of the two inner rings 40 are in sliding engagement with the core 20, and it is understood that in order to reduce the friction force between the inner rings 40 and the core 20, grease may be filled between the core 20 and the inner rings 40.
Referring to fig. 2, as another embodiment of the present invention, there are three inner rings 40, the central points of the three inner rings 40 are distributed in a triangle, and the assembly formed by the three inner rings 40 and the core 20 has a rounded triangle outer profile. It will be appreciated that the present embodiment is applicable to a case where three rotating shafts are arranged side by side, and the number of the inner rings 40 of the present invention can be extended in the light of the present embodiment, for example, four or even more inner rings 40 can be provided, and it should be noted that each inner ring 40 is located at each corner of the core 20, for example, when the number of the inner rings 40 is four, the core 20 should be substantially square, and four inner rings 40 are respectively provided at four corners of the square.
As one embodiment of the present invention, the outer ring 10 may be made of rubber, for example, it is understood that the outer ring 10 of the present invention may be made of other flexible materials, such as silicone rubber, nylon, etc., besides rubber, and the common features of these materials are that they have certain deformation capability and certain rigidity to support and guide the roller 30.
In a specific embodiment of the present invention, the roller 30 may be, for example, cylindrical, and the axis of the roller 30 is parallel to the axis of the inner ring 40. It will be appreciated that the rollers 30 should have cylindrical sections and that, to improve the efficiency of the roller 30 drive, it is not excluded that additional structures such as trunnions, channels, etc. may be provided on the roll surfaces or both ends of the rollers 30.
Referring to fig. 3, based on the above-mentioned sprocket bearing, the present invention further provides a transmission mechanism, which includes an outer ring 10, a core 20, rollers 30, an inner ring 40 and a shaft 70; the outer ring 10 is made of flexible material; the core body 20 is positioned on the inner side of the outer ring 10, and an annular clamping cavity is formed between the core body 20 and the outer ring 10; a plurality of rollers 30 are arranged, each roller 30 is located in the annular clamping cavity, and the rollers 30 are in rolling fit with the outer ring 10 and the core body 20; at least two inner rings 40 are arranged, each inner ring 40 is positioned at the edge of the core body 20, partial area of the outer annular surface of each inner ring 40 is in sliding fit with the arc-shaped groove arranged at the edge of the core body 20, and the area of the outer annular surface of each inner ring 40, which is positioned outside the arc-shaped groove, is in rolling fit with the roller 30; at least two rotating shafts 70 are provided, and each rotating shaft 70 is inserted into each inner ring 40, so that each rotating shaft 70 is synchronously and rotatably connected with each inner ring 40. It will be appreciated that this embodiment is a specific application to the sprocket bearing described above, which in this embodiment is used for power transmission of multiple parallel shafts.
Further, the transmission mechanism further comprises an input shaft 80 and an output shaft 90, wherein a first driving gear 81 is arranged on the input shaft 80, a first driven gear 71 is arranged at one end of each rotating shaft 70, a second driving gear 72 is arranged at the other end of each rotating shaft 70, a second driven gear 91 is arranged on the output shaft 90, the first driving gear 81 is simultaneously meshed with each first driven gear 71, and each second driving gear 72 is simultaneously meshed with the second driven gear 91. It can be understood that, in the embodiment, the power of the input shaft 80 is distributed to the three rotating shafts 70, so that the transmission efficiency of the unit sectional area of the rotating shafts 70 can be improved, the processing difficulty of the rotating shafts 70 is reduced, and further the cost is reduced. When the chain wheel mechanism is adopted to fix a plurality of rotating shafts 70, the radial assembly size can be reduced to the maximum extent, and the structure is more compact.
Referring to fig. 4 and 5, based on the above-mentioned sprocket bearing, the present invention further provides a transmission mechanism, which includes an outer race 10, a core 20, rollers 30, an inner race 40, and a driving wheel 60; the outer ring 10 is made of flexible materials, and a first tooth-shaped surface is arranged on the outer ring surface of the outer ring 10; the core body 20 is positioned on the inner side of the outer ring 10, and an annular clamping cavity is formed between the core body 20 and the outer ring 10; a plurality of rollers 30 are arranged, each roller 30 is located in the annular clamping cavity, and the rollers 30 are in rolling fit with the outer ring 10 and the core body 20; at least two inner rings 40 are arranged, each inner ring 40 is positioned at the edge of the core body 20, part of the outer annular surface of each inner ring 40 is in sliding fit with the arc-shaped groove arranged at the edge of the core body 20, and the area of the outer annular surface of each inner ring 40, which is positioned outside the arc-shaped groove, is in rolling fit with the roller 30; a second toothed surface is provided on the tread of the drive wheel 60, said second toothed surface being in engagement with said first toothed surface. It can be understood that this embodiment is another specific application scenario of the above-mentioned sprocket bearing, and in this embodiment, the sprocket bearing is used as a transmission mechanism, compared with a conventional transmission device, the transmission mechanism of the present invention has a more compact structure, because the outer ring 10 is flexible, the contact surface between the rollers 30 and the outer ring 10 is increased, the lubrication condition is improved, the transmission efficiency is improved, and the transmission is smoother.
In summary, at least two inner rings 40 in the present invention share one outer ring 10, and the roller 30 can reciprocally circulate between the two inner rings 40, so that two parallel rotating shafts 70 are simultaneously installed on one bearing, and the installation gap between adjacent rotating shafts 70 is reduced, so that the structure of the rotating mechanism using the bearing is more compact. The outer ring 10 is made of flexible materials, can adapt to the special-shaped profile formed by the inner ring 40 and the core body 20, avoids the problems of large processing error and assembly error when rigid materials are used, and avoids the roller 30 from jumping; in addition, because the outer ring 10 is flexible, the contact surface between the rollers 30 and the outer ring 10 is increased, the lubrication condition is improved, the transmission efficiency is improved, and the transmission is smoother; the transmission mechanism of the invention disperses the power of the input shaft 80 to the plurality of rotating shafts 70, can improve the transmission efficiency of the unit sectional area of the rotating shafts 70, reduces the processing difficulty of the rotating shafts 70 and further reduces the cost. Compared with the traditional transmission device, the transmission device has a more compact structure, improves the lubrication condition, improves the transmission efficiency and enables the transmission to be smoother.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Reference throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention, and not necessarily in all embodiments. Thus, appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It is to be understood that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the present invention.
It will also be appreciated that one or more of the elements shown in the figures can also be implemented in a more separated or integrated manner, or even removed for inoperability in some circumstances or provided for usefulness in accordance with a particular application.
Additionally, any reference arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise expressly specified. Further, as used herein, the term "or" is generally intended to mean "and/or" unless otherwise indicated. Combinations of components or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.
As used in the description herein and throughout the claims that follow, "a," "an," and "the" include plural references unless otherwise indicated. Also, as used in the description herein and throughout the claims that follow, the meaning of "in …" includes "in …" and "on …" unless otherwise indicated.
The above description of illustrated embodiments of the invention, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.
The systems and methods have been described herein in general terms as the details aid in understanding the invention. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Thus, although the present invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Thus, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.

Claims (10)

1. A sprocket bearing, comprising:
the outer ring is made of flexible materials;
the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring;
the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body; and
the inner rings are arranged at least two and are positioned at the edge of the core body, partial areas of the outer ring surfaces of the inner rings are in sliding fit with the arc-shaped grooves formed in the edge of the core body, and the areas of the outer ring surfaces of the inner rings, which are positioned outside the arc-shaped grooves, are in rolling fit with the rollers.
2. The sprocket bearing according to claim 1, wherein the arc surface of the arc groove is tangent to the outer wall of the core at both ends of the arc groove, so that when the inner ring is placed in the arc groove, the outer circumferential surface of the inner ring forms a smooth outer profile with the surface of the core.
3. The sprocket bearing according to claim 2, wherein the annular clamping cavity is provided at both sides thereof with retainers having a contour corresponding to the annular clamping cavity, the retainers being fixedly coupled to the core body with respect to each other, and both ends of the roller being engaged with an inner side of the retainers so that the roller is confined in the annular clamping cavity.
4. The sprocket bearing according to claim 2 or 3, wherein there are two of the inner races, two of the inner races being located at respective ends of the core, the assembly of the two inner races and the core having a kidney-circular outer profile.
5. A sprocket bearing according to claim 2 or 3, wherein the inner rings are provided in three, the centre points of the three inner rings being triangularly shaped, the assembly of the three inner rings and the core having a rounded triangular outer profile.
6. The sprocket bearing according to claim 1, wherein the outer ring is made of rubber.
7. The sprocket bearing according to claim 1, wherein the rollers are cylindrical, and the axes of the rollers are parallel to the axis of the inner race.
8. A transmission mechanism, comprising:
the outer ring is made of flexible materials;
the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring;
the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body;
the inner rings are arranged at least two and are positioned at the edge of the core body, partial areas of the outer ring surfaces of the inner rings are in sliding fit with the arc-shaped grooves arranged at the edge of the core body, and the areas of the outer ring surfaces of the inner rings, which are positioned outside the arc-shaped grooves, are in rolling fit with the rollers;
and at least two rotating shafts are arranged, and each rotating shaft is inserted into each inner ring respectively so as to ensure that each rotating shaft is synchronously and rotatably connected with each inner ring respectively.
9. The transmission mechanism as claimed in claim 8, further comprising an input shaft and an output shaft, wherein the input shaft is provided with a first driving gear, one end of each of the rotating shafts is provided with a first driven gear, the other end of each of the rotating shafts is provided with a second driving gear, the output shaft is provided with a second driven gear, the first driving gear is simultaneously engaged with the first driven gears, and the second driving gear is simultaneously engaged with the second driven gears.
10. A transport mechanism, comprising:
the outer ring is made of flexible materials, and a first tooth-shaped surface is arranged on the outer ring surface of the outer ring;
the core body is positioned on the inner side of the outer ring, and an annular clamping cavity is formed between the core body and the outer ring;
the rollers are arranged in the annular clamping cavity and form rolling fit with the outer ring and the core body;
the inner rings are arranged at least two and are positioned at the edge of the core body, partial areas of the outer ring surfaces of the inner rings are in sliding fit with the arc-shaped grooves arranged at the edge of the core body, and the areas of the outer ring surfaces of the inner rings, which are positioned outside the arc-shaped grooves, are in rolling fit with the rollers;
and a second tooth-shaped surface is arranged on the wheel surface of the driving wheel and is meshed with the first tooth-shaped surface.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108950922A (en) * 2018-08-15 2018-12-07 东阳市双燕设备有限公司 A kind of high speed towel bobbin winder device and its implementation
CN208381225U (en) * 2018-06-13 2019-01-15 湖州求精汽车链传动有限公司 Gearbox lubricating oil pump transmission system
CN211587991U (en) * 2019-12-07 2020-09-29 上海高泰精密管材股份有限公司 Cold-drawing processing device of stainless steel pipe
CN111874363A (en) * 2020-08-13 2020-11-03 安徽永成电子机械技术有限公司 Bag smoothing bionic manipulator
CN212899390U (en) * 2020-08-12 2021-04-06 东莞普莱特传动设备有限公司 Rotary platform mechanism
US20220049762A1 (en) * 2020-08-14 2022-02-17 Seiko Epson Corporation Gear device and robot

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208381225U (en) * 2018-06-13 2019-01-15 湖州求精汽车链传动有限公司 Gearbox lubricating oil pump transmission system
CN108950922A (en) * 2018-08-15 2018-12-07 东阳市双燕设备有限公司 A kind of high speed towel bobbin winder device and its implementation
CN211587991U (en) * 2019-12-07 2020-09-29 上海高泰精密管材股份有限公司 Cold-drawing processing device of stainless steel pipe
CN212899390U (en) * 2020-08-12 2021-04-06 东莞普莱特传动设备有限公司 Rotary platform mechanism
CN111874363A (en) * 2020-08-13 2020-11-03 安徽永成电子机械技术有限公司 Bag smoothing bionic manipulator
US20220049762A1 (en) * 2020-08-14 2022-02-17 Seiko Epson Corporation Gear device and robot
CN114074319A (en) * 2020-08-14 2022-02-22 精工爱普生株式会社 Gear device and robot

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