Linear guide rail with double rows of balls

Abstract

The utility model provides a linear guide rail with double rows of balls, and relates to the field of linear guide rails, the linear guide rail with the double rows of balls comprises a sliding block and a rail body, a U-shaped groove is formed in the middle of the rail body, limiting grooves are formed in the two ends of the inner wall of the U-shaped groove, and first rolling wheels are arranged in the limiting grooves; a mounting column is arranged at the lower end of the sliding block, a second rolling wheel is arranged on the mounting column, the first rolling wheel abuts against the second rolling wheel in a rolling mode, and an extending piece is arranged on the inner wall of the U-shaped groove and arranged at the upper end of the limiting groove; rolling connection is adopted, friction force between the sliding blocks and the track body can be reduced, the track body is arranged in a wrapping mode, the first rolling wheels can be prevented from being separated from the track body, and transportation safety can be improved.

Description

Technical Field

[0001] This application relates to the field of linear guides, and more specifically, to a linear guide with double rows of ball bearings. Background Technology

[0002] Linear guides, also known as linear rails, slide rails, linear guides, or linear slide rails, can be divided into three types: roller linear guides, cylindrical linear guides, and ball linear guides.

[0003] Some existing linear guides have rollers on the sliding block. The rollers are located at the outer end of the guide component. When the rollers get stuck, the coefficient of friction increases. Therefore, the current linear guides need to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a linear guide with double-row ball bearings, which can solve the above-mentioned technical problems.

[0005] This application provides a linear guide rail with double-row ball bearings, including a slider and a rail body. The rail body has a U-shaped groove in the middle, and limit grooves are provided at both ends of the inner wall of the U-shaped groove. A first roller is provided inside the limit groove. A mounting post is provided at the lower end of the slider, and a second roller is provided on the mounting post. The first roller and the second roller roll against each other. An extension is provided on the inner wall of the U-shaped groove, and the extension is provided at the upper end of the limit groove.

[0006] Preferably, the track body has a plurality of first fixing holes in the middle, and the first fixing holes are provided with threads.

[0007] Preferably, the upper part of the slider is provided with a plurality of second fixing holes, and the second fixing holes are provided with threads.

[0008] Preferably, the extension is arc-shaped, and the slider has arc-shaped blocks at both ends, which abut against the extension.

[0009] Preferably, the slider is provided with a first reinforcing rib and the track body is provided with a second reinforcing rib. Both the first and second reinforcing ribs are arranged longitudinally and are made of steel wire.

[0010] Preferably, a wear-resistant layer is provided on the inner wall of the bottom of the U-shaped groove, and the thickness of the wear-resistant layer is 2-3 mm.

[0011] Preferably, both the slider and the track body are made of metal.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a linear guide rail with double-row ball bearings, including a slider and a rail body. A U-shaped groove is provided in the middle of the rail body, and limiting grooves are provided at both ends of the inner wall of the U-shaped groove. A first roller is provided inside the limiting groove. A mounting post is provided at the lower end of the slider, and a second roller is provided on the mounting post. The first roller and the second roller roll in contact. An extension is provided on the inner wall of the U-shaped groove, and the extension is located at the upper end of the limiting groove. This utility model uses a rolling connection, which reduces the friction between the slider and the rail body. Furthermore, the rail body of this utility model adopts an enclosed design, which prevents the first roller from detaching from the rail body, thus improving transportation safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a longitudinal sectional view of the present invention;

[0018] Figure 4 This is a top view of the present invention.

[0019] The reference numerals in the attached figures are as follows:

[0020] 1. Slider; 2. Track body; 3. U-shaped groove; 4. Limiting groove; 5. First roller; 6. Mounting post; 7. Second roller; 8. Extension; 9. First fixing hole; 10. Second fixing hole; 11. Arc block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] like Figure 1-4As shown, a linear guide rail with double-row ball bearings includes a slider 1 and a rail body 2. A U-shaped groove 3 is provided in the middle of the rail body 2, and limiting grooves 4 are provided at both ends of the inner wall of the U-shaped groove 3. A first roller 5 is provided inside the limiting groove 4. A mounting post 6 is provided at the lower end of the slider 1, and a second roller 7 is provided on the mounting post 6. The first roller 5 and the second roller 7 roll in contact. An extension 8 is provided on the inner wall of the U-shaped groove 3, and the extension 8 is located at the upper end of the limiting groove 4. This invention uses a rolling connection, which reduces the friction between the slider 1 and the rail body 2. Furthermore, the rail body 2 of this invention adopts a wrap-around design, which prevents the first roller 5 from detaching from the rail body 2, thus improving transportation safety.

[0028] In this embodiment, the track body 2 is provided with a plurality of first fixing holes 9 in the middle. The first fixing holes 9 are provided with threads. The first fixing holes 9 of this utility model are used to fix the track body 2 on the machining table, and can be fixed by bolts with threads, which facilitates disassembly and maintenance in the future.

[0029] In this embodiment, the upper part of the slider 1 is provided with a plurality of second fixing holes 10, and the second fixing holes 10 are provided with threads. The second fixing holes 10 of this utility model are used to install the transported mechanical device, such as a robotic arm, etc., and can be fixed by bolts with bolts, which facilitates later disassembly and maintenance.

[0030] In this embodiment, the extension 8 is arc-shaped, and the slider 1 has arc-shaped blocks 11 at both ends. The arc-shaped blocks 11 abut against the extension 8. The extension 8 of this utility model is used to limit the first roller 5. The arc-shaped blocks 11 can scrape off impurities on the extension 8 and prevent impurities from entering the track body 2.

[0031] In this embodiment, the slider 1 is provided with a first reinforcing rib, and the track body 2 is provided with a second reinforcing rib. Both the first and second reinforcing ribs are arranged longitudinally and are made of steel wire. The first reinforcing rib of this utility model can improve the hardness and toughness of the slider 1, and the second reinforcing rib of this utility model can improve the hardness and toughness of the track body 2, which can effectively extend the service life of the slider 1 and the track body 2.

[0032] In this embodiment, a wear-resistant layer is provided on the inner wall of the bottom of the U-shaped groove 3. The thickness of the wear-resistant layer is 2-3mm. The wear-resistant layer of this utility model can effectively improve the wear resistance of the bottom of the U-shaped groove 3.

[0033] In this embodiment, in order to further extend the service life of the slider 1 and the track body 2, both the slider 1 and the track body 2 are made of metal.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A linear guide rail with double-row balls, characterized by: The device includes a slider and a track body. The track body has a U-shaped groove in the middle. The inner walls of the U-shaped groove have limit grooves at both ends. A first roller is installed inside the limit groove. The lower end of the slider has a mounting post. A second roller is installed on the mounting post. The first roller and the second roller roll against each other. An extension is installed on the inner wall of the U-shaped groove. The extension is located at the upper end of the limit groove.

2. The linear guide rail with double rows of balls according to claim 1, characterized in that: The track body has a plurality of first fixing holes in the middle, and the first fixing holes are threaded.

3. The linear guide rail with double rows of balls according to claim 1, characterized in that: The upper part of the slider is provided with multiple second fixing holes, and the second fixing holes are provided with threads.

4. The linear guide rail with double rows of balls according to claim 1, characterized in that: The extension is arc-shaped, and the slider has arc-shaped blocks at both ends, which abut against the extension.

5. The linear guide rail with double rows of balls according to claim 1, characterized in that: The slider has a first reinforcing rib inside, and the track body has a second reinforcing rib inside. Both the first and second reinforcing ribs are arranged longitudinally and are made of steel wire.

6. The linear guide rail with double rows of balls according to claim 1, characterized in that: A wear-resistant layer with a thickness of 2-3 mm is provided on the inner wall of the bottom of the U-shaped groove.

7. The linear guide rail with double rows of balls according to claim 1, characterized in that: Both the slider and the track body are made of metal.

Images