Nylon roller, movable door mechanism, vehicle and manufacturing process
阅读说明：本技术 尼龙滚轮、移动门机构、车辆及制造工艺 (Nylon roller, movable door mechanism, vehicle and manufacturing process ) 是由 徐功建 于 2020-08-05 设计创作，主要内容包括：本发明提供了一种尼龙滚轮、移动门机构、车辆及制造工艺,涉及滚轮技术领域。本发明的尼龙滚轮包括：尼龙轮体和轴承,所述轴承包括轴承内圈和可以相对轴承内圈转动的轴承外圈,所述轴承外圈上背向所述轴承内圈一侧的表面为轴承的外圈面,所述轴承的外圈面上形成有滚花,所述轴承的外圈面上形成有朝轴承内圈方向凹陷的凹槽；所述尼龙轮体通过所述轴承的外圈与所述轴承形成连接。本发明的尼龙滚轮可以有效消除尼龙轮体由于负载作用产生形变而脱落轴承的情况。(The invention provides a nylon roller, a movable door mechanism, a vehicle and a manufacturing process, and relates to the technical field of rollers. The nylon roller of the present invention comprises: the bearing comprises a bearing inner ring and a bearing outer ring which can rotate relative to the bearing inner ring, wherein the surface of one side of the bearing outer ring, which is back to the bearing inner ring, is the outer ring surface of the bearing, knurling is formed on the outer ring surface of the bearing, and a groove which is sunken towards the direction of the bearing inner ring is formed on the outer ring surface of the bearing; the nylon wheel body is connected with the bearing through the outer ring of the bearing. The nylon roller can effectively eliminate the condition that the nylon roller body deforms under the action of load and falls off the bearing.)
1. Nylon gyro wheel, its characterized in that includes:
a nylon wheel body;
the bearing comprises a bearing inner ring and a bearing outer ring which can rotate relative to the bearing inner ring, wherein the surface of the bearing outer ring, which is back to one side of the bearing inner ring, is an outer ring surface of the bearing, knurling is formed on the outer ring surface of the bearing, and a groove which is sunken towards the direction of the bearing inner ring is formed on the outer ring surface of the bearing;
the nylon wheel body is connected with the bearing through the outer ring surface of the bearing.
2. The nylon roller of claim 1, wherein the groove surrounds the outer ring surface of the bearing for one circle in a circumferential direction of the outer ring surface, and the cross section of the groove is rectangular.
3. The nylon roller of claim 1, wherein the groove surrounds the outer ring surface of the bearing for a circle along the circumferential direction of the outer ring surface, and the width of the groove at the end close to the bearing inner ring is larger than the width of the groove at the end far away from the bearing inner ring.
4. The nylon idler wheel of claim 3, wherein the groove is defined by a bottom surface, a first side surface and a second side surface, the bottom of the first side surface and the bottom of the second side surface are connected with the bottom surface, an included angle A is formed between the first side surface or the second side surface and the bottom surface, and A is more than or equal to 40 degrees and less than or equal to 67 degrees.
5. The nylon roller of claim 1, wherein the groove comprises a first groove and a second groove arranged side by side in an axial direction of the bearing.
6. The nylon roller of any one of claims 1 to 5, wherein the knurls are straight knurls.
7. The nylon roller according to any one of claims 1 to 5, wherein the nylon roller body is formed into an integral structure with the bearing outer ring by injection molding, and a surface of the nylon roller body, which is connected with the outer ring surface, is partially embedded in the groove and the groove formed by the knurling.
8. Moving door mechanism, characterized in that it comprises a nylon roller according to any of claims 1 to 7.
9. Vehicle, characterized in that it is provided with a moving door mechanism as claimed in claim 8.
10. The nylon roller manufacturing process is characterized by comprising the following steps:
s1, turning the bearing outer ring to obtain the outer ring surface of the bearing;
s2, processing a groove and/or a knurling on the surface of the bearing outer ring;
and S3, carrying out injection molding on the nylon and the glass fiber to obtain the nylon wheel body integrated with the bearing outer ring.
Technical Field
The invention relates to the technical field of rollers, in particular to a nylon roller, a movable door mechanism, a vehicle and a manufacturing process.
Background
Some door mechanisms implement opening and closing of doors by moving door bodies, such as rail car doors, elevator doors, wardrobe doors, and the like. The roller is used as a key part of the movable door mechanism, and plays an important role in the process of realizing smooth movement of the door main body. Because the roller can bear larger load in the process of rotating along with the movement of the door main body, and the nylon material has high mechanical strength and good toughness, the current roller adopts a ring of wheel body made of nylon material fixed on the bearing outer ring. The nylon wheel body rotates along with the outer ring of the bearing in the working process of the roller wheel, and is in contact with other objects to bear certain load.
Although the mechanical strength of the nylon material is high, the stiffness of the nylon material is much lower than that of the bearing. When the roller rolls, the wheel body made of nylon material can generate a certain amount of deformation due to the load effect. And the bearing has higher rigidity, so the deformation of the bearing under the action of the same load is very slight. Under the condition that the deformation of the nylon wheel body and the deformation of the bearing are inconsistent, the nylon wheel body can fall off.
Disclosure of Invention
In view of the above, the present invention provides a nylon roller, which is used to solve the technical problem that the existing nylon roller falls off due to the nylon roller body deforming greatly relative to the bearing under the action of load.
In a first aspect, the present invention provides a nylon roller comprising:
a nylon wheel body;
the bearing comprises a bearing inner ring and a bearing outer ring which can rotate relative to the bearing inner ring, wherein the surface of the bearing outer ring, which is back to one side of the bearing inner ring, is an outer ring surface of the bearing, knurling is formed on the outer ring surface of the bearing, and a groove which is sunken towards the direction of the bearing inner ring is formed on the outer ring surface of the bearing;
the nylon wheel body is connected with the bearing through the outer ring of the bearing.
Preferably, the groove surrounds the outer ring surface of the bearing for a circle along the circumferential direction of the outer ring surface, and the cross section of the groove is rectangular.
Preferably, the groove surrounds the outer ring surface of the bearing for a circle along the circumferential direction of the outer ring surface, and the width of one end, close to the bearing inner ring, of the groove is larger than that of one end, far away from the bearing inner ring, of the groove.
Preferably, the groove is surrounded by a bottom surface, a first side surface and a second side surface, the bottoms of the first side surface and the second side surface are connected with the bottom surface, an included angle A is formed between the first side surface or the second side surface and the bottom surface, and the included angle A is more than or equal to 40 degrees and less than or equal to 67 degrees.
Preferably, the grooves include a first groove and a second groove arranged side by side in the axial direction of the bearing.
Preferably, the knurling is straight knurling.
Preferably, the knurling is a cross-hatched knurling.
Preferably, the nylon wheel body and the bearing outer ring form an integrated structure through injection molding, and one surface of the nylon wheel body, which is connected with the outer ring surface, is partially embedded into the groove and the groove formed by the knurls.
In a second aspect, the present invention provides a moving door mechanism, comprising the nylon roller of the first aspect.
In a third aspect, the invention provides a vehicle provided with the moving door mechanism of the second aspect.
In a fourth aspect, the invention provides a nylon roller manufacturing process, which comprises the following steps:
s1, turning the bearing outer ring to obtain the outer ring surface of the bearing;
s2, processing a groove and/or a knurling on the surface of the bearing outer ring;
and S3, carrying out injection molding on the nylon and the glass fiber to obtain the nylon wheel body integrated with the bearing outer ring.
Has the advantages that: according to the nylon roller, the groove and the knurling are arranged on the surface of the bearing outer ring, so that when the nylon roller works in a load state, stress on the nylon roller body can be dispersed to different positions of the nylon roller body. Thereby the stress on the nylon wheel body at all positions is obviously reduced. When the stress of the nylon wheel body is obviously reduced, the deformation of the nylon wheel body is also obviously reduced, so that the nylon wheel body cannot be separated from the bearing due to the large deformation. In addition, the structure of the groove and the knurl adopted by the invention does not need to add an additional connecting piece on the bearing or the nylon wheel body, and the change on the original structure of the bearing is small, so the structure is simple and the occupied space is small.
The movable door mechanism of the invention adopts the nylon roller, so the service life is long, the performance is stable, and the roller is not easy to damage.
The vehicle of the invention adopts the movable door mechanism, so the performance is stable, the service life is long, and the roller is not easy to damage.
According to the manufacturing process, the nylon idler wheel is obtained by injection molding on the outer ring surface with the groove and the knurling structure, so that the stress generated on the nylon wheel body can be effectively dispersed, and the nylon wheel body is prevented from falling off the bearing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.
FIG. 1 is a cross-sectional view of a nylon roller of the present invention;
FIG. 2 is a partial sectional view of a nylon roller of the present invention employing a straight groove structure;
FIG. 3 is a partial cross-sectional view of a nylon roller of the present invention employing a "T" groove configuration;
FIG. 4 is a partial cross-sectional view of the bearing cup of the present invention;
FIG. 5 is a schematic diagram of the structure of the groove with inclined side surfaces according to the present invention;
FIG. 6 is an expanded view of the bearing outer race face of the present invention utilizing straight knurls;
FIG. 7 is an expanded view of the bearing outer race face of the present invention utilizing grid knurling;
FIG. 8 is an angled view of a groove formed by grid knurling according to the present invention;
FIG. 9 is a schematic view of a protrusion disposed in a groove according to the present invention;
FIG. 10 is a schematic structural view of a groove arrangement communication surface according to the present invention;
FIG. 11 is a flow chart of a process for manufacturing a nylon wheel according to the present invention;
parts and numbering in the drawings: the
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments of the present invention and various features of the embodiments may be combined with each other within the scope of the present invention.
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