CN218118354U - Pulley bearing - Google Patents
Pulley bearing Download PDFInfo
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- CN218118354U CN218118354U CN202221877220.9U CN202221877220U CN218118354U CN 218118354 U CN218118354 U CN 218118354U CN 202221877220 U CN202221877220 U CN 202221877220U CN 218118354 U CN218118354 U CN 218118354U
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- wheel body
- wheel
- bearing
- pulley
- retainer
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Abstract
The utility model discloses a pulley bearing belongs to the bearing field, include: the first wheel body, the second wheel body, the retainer and the cylindrical rollers; the first wheel body and the second wheel body are integrally formed, the first wheel body is positioned at the left end of the second wheel body, and the first wheel body is communicated with the second wheel body; the outer diameter of the first wheel body is smaller than that of the second wheel body; the retainer is arranged in the first wheel body and the second wheel body, a plurality of mounting grooves are formed in the retainer, and the cylindrical rollers are located in the mounting grooves; the first wheel body and the second wheel body are integrally formed and serve as the outer ring of the bearing, so that the step that the bearing needs to be installed in the rail wheel in the prior art is reduced, and the installation time is shortened; the first wheel body and the second wheel body are used as outer rings of the pulley bearing, so that the size is reduced; the first wheel body and the second wheel body are integrally formed and processed more conveniently.
Description
Technical Field
The utility model belongs to the bearing field, especially, pulley bearing.
Background
The cylindrical roller bearing is a centripetal rolling bearing with cylindrical rollers as rolling bodies. The cylindrical roller is in linear contact with the raceway, has large radial bearing capacity, and is widely applied to the fields of vehicles, machine tools, reduction boxes, rolling mills, transportation machinery and the like.
The existing rail wheel needs to be provided with a bearing in the rail wheel, the rail wheel and the bearing are assembled together, the rail wheel assembled in the mode is large in size, multiple in assembly steps and inconvenient, and therefore a pulley bearing which integrates the rail wheel and the bearing into a whole, is small in size and is convenient to process needs to be designed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model provides a pulley bearing to solve the problem that the background art relates to.
The utility model provides a pulley bearing, include: the roller comprises a first wheel body, a second wheel body, a retainer and cylindrical rollers; the first wheel body and the second wheel body are integrally formed, the first wheel body is positioned at the left end of the second wheel body, and the first wheel body and the second wheel body are communicated with each other; the outer diameter of the first wheel body is smaller than that of the second wheel body; the retainer is arranged in the first wheel body and the second wheel body, a plurality of mounting grooves are formed in the retainer, and the cylindrical rollers are located in the mounting grooves.
Preferably or optionally, the end of the mounting groove is provided with a limiting post, the end of the cylindrical roller is provided with a limiting hole, and the limiting post of the mounting groove is rotatably connected with the limiting hole of the cylindrical roller.
Preferably or optionally, the cutting wheel further comprises a rib, the rib is located at the left end of the first wheel body, the rib and the first wheel body are integrally formed, and an inner corner where the first wheel body is connected with the rib is recessed inwards to form a first tool withdrawal groove.
Preferably or optionally, the inner ring of the rib is provided with a groove.
Preferably or optionally, a second undercut groove which is recessed inwards is arranged at the joint of the outer surfaces of the first wheel body and the second wheel body.
Preferably or optionally, the cylindrical rollers are in contact with the inner surfaces of the first wheel body and the second wheel body, and the cylindrical rollers are in rolling connection with the inner surfaces of the first wheel body and the second wheel body.
Having adopted above-mentioned technical scheme, compared in prior art, the utility model discloses following beneficial effect has:
(1) The first wheel body and the second wheel body are integrally formed and serve as the outer ring of the bearing, so that the steps of installing the bearing into the rail wheel in the prior art are reduced, and the installation time is shortened; the first wheel body and the second wheel body are used as outer rings of the pulley bearings, so that the size is reduced; the first wheel body and the second wheel body are integrally formed and processed more conveniently.
(2) The utility model discloses a spacing post is used for joint cylindrical roller, prevents that cylindrical roller from droing from the mounting groove.
(3) The utility model discloses a recess is arranged in for inserting pulley bearing and with pulley bearing interference fit's rotation axis location, the installation of being convenient for.
(4) The utility model discloses first tool withdrawal groove and second tool withdrawal groove are convenient for the processing instrument and are accomplished the tool withdrawal, still have the effect that prevents stress concentration and lead to the fracture risk simultaneously.
Drawings
Fig. 1 is a sectional view of the present invention.
The reference signs are:
the wheel comprises a first wheel body 1, a second wheel body 2, a retainer 3, a cylindrical roller 4, a limiting column 5, a first tool withdrawal groove 6, a groove 7 and a second tool withdrawal groove 8.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The mechanisms of the embodiments of the present invention, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the product of the present invention is usually placed when in use, or the orientation or positional relationship that a person skilled in the art usually understands, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, the pulley bearing of the present embodiment includes: the wheel comprises a first wheel body 1, a second wheel body 2, a retainer 3, a cylindrical roller 4, a limiting column 5, a first tool withdrawal groove 6, a groove 7 and a second tool withdrawal groove 8.
Specifically, a first wheel body 1 and a second wheel body 2 are respectively arranged at the left end and the right end of the pulley bearing; the first wheel body 1 and the second wheel body 2 are of an integrated forming structure, the first wheel body 1 is positioned at the left end of the second wheel body 2, the first wheel body 1 is connected with the second wheel body 2 and is communicated left and right, the inner diameter of the first wheel body 1 is the same as that of the second wheel body 2, and the outer diameter of the first wheel body 1 is smaller than that of the second wheel body 2; the retainer 3 is arranged in the first wheel body 1 and the second wheel body 2, a plurality of mounting grooves are formed in the circumferential surface of the retainer 3, the mounting grooves are uniformly arranged along the circumferential direction of the retainer 3, and the cylindrical rollers 4 are positioned in the mounting grooves; the first wheel body 1 and the second wheel body 2 are integrally formed and serve as the outer ring of the bearing, so that the step that the bearing needs to be installed in the rail wheel in the prior art is reduced, and the installation time is shortened; the first wheel body 1 and the second wheel body 2 are used as outer rings of the pulley bearing, so that the size is reduced; meanwhile, the first wheel body 1 and the second wheel body 2 are more convenient to integrally form and process.
In a further embodiment, the end of the mounting groove is provided with a limiting post 5, the limiting post 5 and the retainer 3 are integrally formed, the end of the cylindrical roller 4 is provided with a limiting hole, the limiting post 5 is inserted into the limiting hole, the limiting post 5 of the mounting groove is rotatably connected with the limiting hole of the cylindrical roller 4, and the limiting post 5 is used for clamping the cylindrical roller 4 to prevent the cylindrical roller 4 from falling off from the mounting groove.
In a further embodiment, the wheel further comprises a rib, the rib is located at the left end of the first wheel body 1, the rib is annular, the rib and the first wheel body 1 are integrally formed, an inner angle where the first wheel body 1 is connected with the rib is inwards recessed to form a first tool withdrawal groove 6, and the first tool withdrawal groove 6 is arc-shaped.
In a further embodiment, the inner ring of the rib is provided with a groove 7, and the groove 7 is used for positioning a rotating shaft inserted into the pulley bearing and in interference fit with the pulley bearing, so that the installation is convenient.
In a further embodiment, a second undercut 8 which is recessed inwards is arranged at the joint of the outer surfaces of the first wheel body 1 and the second wheel body 2; the first tool withdrawal groove 6 and the second tool withdrawal groove 8 facilitate the completion of tool withdrawal by the machining tool, and also have the effect of preventing the risk of fracture due to stress concentration.
In a further embodiment, the cylindrical rollers 4 are attached to the inner surfaces of the first wheel body 1 and the second wheel body 2, and the cylindrical rollers 4 are in rolling connection with the inner surfaces of the wheel bodies, so that the cylindrical rollers 4 can be prevented from shaking, and the stability of the bearing can be improved.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
Claims (6)
1. A pulley bearing, comprising: the wheel comprises a first wheel body (1), a second wheel body (2), a retainer (3) and cylindrical rollers (4); the first wheel body (1) and the second wheel body (2) are integrally formed, the first wheel body (1) is positioned at the left end of the second wheel body (2) and the first wheel body (1) and the second wheel body (2) are communicated with each other; the outer diameter of the first wheel body (1) is smaller than that of the second wheel body (2); the retainer (3) is arranged in the first wheel body (1) and the second wheel body (2), a plurality of mounting grooves are formed in the retainer (3), and the cylindrical rollers (4) are located in the mounting grooves.
2. The pulley bearing according to claim 1, characterized in that the end of the mounting groove is provided with a limiting post (5), the end of the cylindrical roller (4) is provided with a limiting hole, and the limiting post (5) of the mounting groove is rotatably connected with the limiting hole of the cylindrical roller (4).
3. The pulley bearing according to claim 1, characterized in that it further comprises a rib, said rib is located at the left end of the first pulley body (1), said rib is integrally formed with the first pulley body (1), and the inner angle of the first pulley body (1) connected with the rib is recessed inwards to form a first relief groove (6).
4. Pulley bearing according to claim 3, wherein the inner ring of the rib is provided with a groove (7).
5. Pulley bearing according to claim 1, characterized in that the connection between the outer surfaces of the first (1) and second (2) wheels is provided with an inwardly recessed second relief groove (8).
6. Pulley bearing according to claim 2, characterized in that the cylindrical rollers (4) are in abutment with the inner surfaces of the first (1) and second (2) wheel body and that the cylindrical rollers (4) are in rolling connection with the inner surfaces of the first (1) and second (2) wheel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877220.9U CN218118354U (en) | 2022-07-12 | 2022-07-12 | Pulley bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221877220.9U CN218118354U (en) | 2022-07-12 | 2022-07-12 | Pulley bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218118354U true CN218118354U (en) | 2022-12-23 |
Family
ID=84517032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221877220.9U Active CN218118354U (en) | 2022-07-12 | 2022-07-12 | Pulley bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218118354U (en) |
-
2022
- 2022-07-12 CN CN202221877220.9U patent/CN218118354U/en active Active
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