CN220354289U - Convex guide rail sliding block bearing - Google Patents
Convex guide rail sliding block bearing Download PDFInfo
- Publication number
- CN220354289U CN220354289U CN202322021111.8U CN202322021111U CN220354289U CN 220354289 U CN220354289 U CN 220354289U CN 202322021111 U CN202322021111 U CN 202322021111U CN 220354289 U CN220354289 U CN 220354289U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- guide rail
- groove
- outer ring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
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- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model relates to a convex guide rail sliding block bearing, which is designed for solving the technical problems of poor stability, higher friction and abrasion, lower accuracy, shorter service life and single structural form caused by the lack of an arc convex surface structural design at the outer ring of the existing like product. The guide rail sliding block bearing comprises an outer ring, steel balls and an inner ring, wherein the steel balls are arranged in a gap between the inner ring and the outer ring and in a groove, the groove is a single groove, a double groove, a needle roller groove or a full ball groove, the inner ring and an inner ring screw are connected into a whole to form an inner ring shaft, one end of the inner ring shaft extends out of the outer ring and is provided with a straight line, a thread or a straight line thread, at least one end of the inner ring shaft is provided with an inner hexagon, a straight line groove or an inner thread, and the outer diameter peripheral surface of the outer ring is attached to the outer diameter of a guide rail to slide and move; the outer diameter circumference of the outer ring is arc-shaped convex, the corresponding outer diameter of the guide rail is arc-shaped groove, and the height h of the arc-shaped convex of the outer ring is 0.5-2mm.
Description
Technical Field
The utility model relates to a guide rail sliding block bearing, in particular to a convex guide rail sliding block bearing.
Background
The bearing is a component for fixing and reducing the friction coefficient of load in the mechanical transmission process, and is used for reducing the friction coefficient in the power transmission process and keeping the central position of the shaft fixed when other parts move relative to each other on the shaft; bearings can be classified into rolling bearings and sliding bearings according to the friction properties of the moving elements. The rolling bearings are used for supporting and guiding the moving parts and do reciprocating rectilinear motion in a given direction, and can be divided into square ball rectilinear guide rails, double-shaft roller rectilinear guide rails and single-shaft core rectilinear guide rails according to different structures. Application number 201520028720.9, grant bulletin date 2015.07.08, title of the utility model "guide rail slider bearing" as disclosed in chinese patent literature; the product and the like generally adopt the arc-shaped groove structural design of the sliding groove at the outer ring, less adopts the arc-shaped convex structural design, and simultaneously has the problems of poor stability, lower accuracy and single structural form.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide the convex guide rail sliding block bearing for the field, so that the technical problems of poor stability, higher friction and abrasion, lower accuracy, shorter service life and single structural form caused by the lack of an arc convex surface structural design at the outer ring of the existing similar product are solved. The aim is achieved by the following technical scheme.
The convex guide rail sliding block bearing comprises an outer ring, steel balls and an inner ring, wherein the steel balls are arranged in a gap and a groove between the inner ring and the outer ring, the groove is a single groove, a double groove, a needle roller groove or a full ball groove, the inner ring and an inner ring screw are connected into a whole to form an inner ring shaft, one end of the inner ring shaft extends out of the outer ring and is provided with a linear, threaded or linear thread, at least one end of the inner ring shaft is provided with an inner hexagon, a linear groove or an inner thread, and the outer diameter peripheral surface of the outer ring is attached to the outer diameter of a guide rail to slide and move; the key point of the structural design is that the outer diameter circumference of the outer ring is an arc convex surface, and the corresponding outer diameter of the guide rail is an arc groove. The structure is convenient for reducing friction and abrasion on two sides in the middle of the outer ring and meets the use requirement of the outer ring, so that the service life of the outer ring is prolonged.
The height h of the arc-shaped convex surface of the outer ring is 0.5-2mm.
The central shaft of the inner ring shaft is arranged in a centering or eccentric way. Thereby meeting the requirements of the use of the centering or eccentric installation.
The height of the gap between the inner diameter of the outer ring and the inner ring shaft at the steel ball is one half of the diameter of the steel ball. Thereby providing its load-bearing capacity and stability and extending its instructions for use.
The utility model has reasonable structural design, convenient installation, use and adjustment, good stability, long service life and various structural forms; the sliding rail is suitable for the application of the sliding rail in the single rail or double rail guide rail, especially the sewing machine equipment such as embroidery machine, quilting rust machine and the like.
Drawings
FIG. 1 is a schematic cross-sectional view of a prior art rail slider bearing.
Fig. 2 is a schematic cross-sectional view of the embodiment of the utility model of fig. 1.
Fig. 3 is a schematic diagram of a second cross-sectional structure of the modified embodiment of fig. 2.
Fig. 4 is a schematic view of a three-sectional structure of the modified embodiment of fig. 2, in which the steel balls are replaced with rolling pins.
Figure number and name: 1. the outer ring, 101, arc convex surface, 2, inner ring shaft, 3, steel ball.
Detailed Description
The construction and use of the present utility model will now be further described with reference to the accompanying drawings. As shown in fig. 1, the existing guide rail sliding block bearing comprises an outer ring 1, steel balls 3 and an inner ring, wherein the steel balls are arranged in a gap between the inner ring and the outer ring and in a channel, the channel is a single channel, the inner ring and an inner ring screw are connected into a whole to form an inner ring shaft 2, one end of the inner ring shaft extends out of the outer ring and is provided with external threads, one end of the inner ring shaft is provided with an inner hexagon, the other end of the inner ring shaft is provided with a straight slot, and the outer diameter peripheral surface of the outer ring is attached to the outer diameter of a guide rail to slide and move.
As shown in fig. 2-4, the grooves at the outer ring and the inner ring shaft of the guide rail sliding block bearing are single grooves, double grooves, needle roller grooves or full ball grooves, one end of the inner ring shaft extends out of the outer ring and is provided with a straight line, a thread or a straight line thread, at least one end of the inner ring shaft is provided with an inner hexagon, a straight line groove or an inner thread, the outer diameter circumference of the outer ring is an arc convex surface 101, the arc convex surface height h of the outer ring is 0.5-2mm, and the corresponding guide rail outer diameter is an arc groove. Meanwhile, the central shaft of the inner ring shaft is arranged in a centering or eccentric way, and the height of the gap between the inner diameter of the outer ring and the inner ring shaft at the steel ball is one half of the diameter of the steel ball.
In summary, the inner hexagon, the linear groove or the internal thread are formed on the end face of the large outer circle of one end of the inner circle shaft of the guide rail sliding block bearing, the inner diameter of the large outer circle of the outer circle is provided with the single groove, the double groove, the needle roller groove or the full ball groove, the end face of the small outer circle of the other end of the inner circle shaft is provided with the inner hexagon, the linear groove or the internal thread, one end of the small outer circle of the inner circle shaft extends out to be provided with the linear, the thread or the linear thread, and the central shaft of the inner circle shaft is in the center or eccentric. One or two channels are internally provided with steel balls and retainers, two sides of the channels are provided with covers or sealing rings, if the mechanical operation load is large, one channel or two channels are provided, the steel balls in the channels are not provided with retainers or are filled with the steel balls, only a gap which is about half of the diameter of one steel ball is reserved, the full steel ball bearing can improve the load and the service life, the integrated bearing saves the cost, and the service life and the machine operation precision are improved.
Claims (4)
1. The convex guide rail sliding block bearing comprises an outer ring (1), steel balls (3) and an inner ring, wherein the steel balls are arranged in a gap between the inner ring and the outer ring and in a channel, the channel is a single channel, a double channel, a needle roller channel or a full ball channel, the inner ring and an inner ring screw are connected into a whole to form an inner ring shaft (2), one end of the inner ring shaft extends out of the outer ring and is provided with a linear, threaded or linear thread, at least one end of the inner ring shaft is provided with an inner hexagon, a linear groove or an inner thread, and the outer diameter peripheral surface of the outer ring is attached to the outer diameter of a guide rail to slide and move; the guide rail is characterized in that the outer diameter circumference of the outer ring (1) is an arc convex surface (101), and the corresponding guide rail outer diameter is an arc groove.
2. A male rail slider bearing according to claim 1, characterized in that the arcuate convex surface (101) of the outer ring (1) has a height h of 0.5-2mm.
3. A male guide rail slider bearing according to claim 1, characterized in that the central axis of the inner ring shaft (2) is arranged in a positive or eccentric manner.
4. The male guide rail sliding block bearing according to claim 1, characterized in that the height of the gap between the inner diameter of the outer ring (1) and the inner ring shaft (2) at the steel ball (3) is one half of the diameter of the steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021111.8U CN220354289U (en) | 2023-07-28 | 2023-07-28 | Convex guide rail sliding block bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021111.8U CN220354289U (en) | 2023-07-28 | 2023-07-28 | Convex guide rail sliding block bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220354289U true CN220354289U (en) | 2024-01-16 |
Family
ID=89485568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322021111.8U Active CN220354289U (en) | 2023-07-28 | 2023-07-28 | Convex guide rail sliding block bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220354289U (en) |
-
2023
- 2023-07-28 CN CN202322021111.8U patent/CN220354289U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |