CN220416004U - Improved guide rail sliding block bearing - Google Patents
Improved guide rail sliding block bearing Download PDFInfo
- Publication number
- CN220416004U CN220416004U CN202322021093.3U CN202322021093U CN220416004U CN 220416004 U CN220416004 U CN 220416004U CN 202322021093 U CN202322021093 U CN 202322021093U CN 220416004 U CN220416004 U CN 220416004U
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- China
- Prior art keywords
- guide rail
- outer ring
- inner ring
- channel
- ring
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000010586 diagram Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
- 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
- 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
- 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 an improved guide rail sliding block bearing, which is designed for solving the technical problems of poor stability, low accuracy and single structural form of an arc-shaped groove structure design of a chute 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 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, 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, a sliding groove is arranged in the middle of the outer diameter of the outer ring, and the sliding groove of the outer ring slides along the outer diameter of a guide rail; the structure design is characterized in that the cross section of the sliding groove of the outer ring is isosceles trapezoid, the corresponding guide rail is convex isosceles trapezoid, and the cross section of the sliding groove of the outer ring or the outward bulge is isosceles trapezoid.
Description
Technical Field
The utility model relates to a guide rail sliding block bearing, in particular to an improved 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, and have the advantages of poor stability, low accuracy and single structural form.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide an improved guide rail sliding block bearing for solving the technical problems of poor stability, low accuracy and single structural form of an arc-shaped groove structure design of a chute at the outer ring of the existing similar product. The aim is achieved by the following technical scheme.
The improved 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 channels, the channels are single channels, double channels, needle roller channels or full ball channels, 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, a sliding groove is arranged in the middle of the outer diameter of the outer ring, and the sliding groove of the outer ring is attached to the outer diameter of a guide rail to slide and move; the structure design is characterized in that the cross section of the sliding groove of the outer ring is isosceles trapezoid, and the corresponding guide rail is convex isosceles trapezoid. The guide rail with the corresponding shape of the structure improves the clamping force, prevents the guide rail from falling out and improves the stability of the guide rail.
The cross section or outward bulge of the sliding groove of the outer ring is in an isosceles trapezoid shape, and the corresponding guide rail is in an isosceles trapezoid groove. The other embodiment of the shape of the sliding groove at the outer ring belongs to a common corresponding shape of the guide rail.
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 sectional view of a prior art rail slider bearing in use.
Fig. 2 is a schematic side view of the structure of fig. 1.
Fig. 3 is a schematic perspective view of fig. 2.
FIG. 4 is a schematic cross-sectional view of an embodiment of the present utility model.
Fig. 5 is a schematic diagram of a second cross-sectional structure of the modified embodiment of fig. 4.
Fig. 6 is a schematic diagram of a three-sectional structure of the modified embodiment of fig. 4.
Fig. 7 is a schematic diagram of a fourth cross-sectional structure of the modified embodiment of fig. 4.
Fig. 8 is a schematic diagram of a fifth cross-sectional structure of the modified embodiment of fig. 4, in which the steel balls are replaced with rolling pins.
Fig. 9 is a six-sectional schematic view of the modified embodiment of fig. 4, in which the steel balls are replaced with rolling pins.
Fig. 10 is a seven-sectional structural schematic diagram of the modified embodiment of fig. 5.
Fig. 11 is a schematic diagram of an eighth cross-sectional configuration of the modified embodiment of fig. 10.
Figure number and name: 1. outer ring, 101, chute, 2, inner ring shaft, 3, steel ball, 4, guide rail.
Description of the embodiments
The construction and use of the present utility model will now be further described with reference to the accompanying drawings. As shown in fig. 1-3, 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 and a channel between the inner ring and the outer ring, 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, a sliding groove 101 is arranged in the middle of the outer diameter of the outer ring, and the sliding groove of the outer ring slides and moves in a manner of being attached to the outer diameter of a guide rail 4.
As shown in fig. 4-11, the channels at the outer ring and the inner ring shaft of the guide rail sliding block bearing are single channels, double channels, needle roller channels or full ball channels, one end of the inner ring shaft extends out of the outer ring and is provided with a linear, threaded or linear thread at the shaft part, at least one end of the inner ring shaft is provided with an inner hexagon, a linear groove or an inner thread, the cross section of the sliding groove of the outer ring is isosceles trapezoid, and the corresponding guide rail is convex isosceles trapezoid; or the cross section of the sliding groove of the outer ring or the outward bulge is isosceles trapezoid, and the corresponding guide rail is an isosceles trapezoid 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 improved 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, a sliding groove (101) is arranged in the middle of the outer diameter of the outer ring, and the sliding groove of the outer ring is attached to the outer diameter of a guide rail (4) to slide and move; the novel guide rail is characterized in that the cross section of a sliding groove (101) of the outer ring (1) is isosceles trapezoid, and a corresponding guide rail (4) is convex isosceles trapezoid.
2. The improved guide rail sliding block bearing according to claim 1, characterized in that the cross section or outward bulge of the sliding groove (101) of the outer ring (1) is isosceles trapezoid, and the corresponding guide rail (4) is an isosceles trapezoid groove.
3. An improved rail slider bearing according to claim 1 or 2, characterized in that the central axis of the inner ring shaft (2) is arranged in a centered or eccentric manner.
4. An improved guide rail slider bearing according to claim 1 or 2, 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 balls (3) is one half of the diameter of the steel balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021093.3U CN220416004U (en) | 2023-07-28 | 2023-07-28 | Improved guide rail sliding block bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021093.3U CN220416004U (en) | 2023-07-28 | 2023-07-28 | Improved guide rail sliding block bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220416004U true CN220416004U (en) | 2024-01-30 |
Family
ID=89659302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322021093.3U Active CN220416004U (en) | 2023-07-28 | 2023-07-28 | Improved guide rail sliding block bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220416004U (en) |
-
2023
- 2023-07-28 CN CN202322021093.3U patent/CN220416004U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |