Dustproof linear guide rail assembly with automatic adjusting function
By adopting multiple rows of steel balls and dustproof parts in the linear guide assembly, the problems of increased friction and short service life caused by dust entry are solved, and the operation effect of high stability, high accuracy and long life is achieved.
Patent Information
- Application Number
- CN202510289535.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-05-13
AI Technical Summary
The existing linear guides are prone to dust during use, resulting in increased friction between the guide rail and the slider, affecting service life, and poor running stability and adjustability.
A linear guide rail assembly including a track body and a sliding assembly is designed. The sliding assembly consists of a slider, front and rear end cover, oil scraper, oil nozzle, steel ball and dustproof member. The contact sliding is carried out through multiple rows of steel balls to reduce friction and prevent dust from entering through the dustproof member limit.
It effectively reduces the friction between the slider and the track body, improves the stability and accuracy of operation, extends the service life of the steel ball, and has the characteristics of high rigidity and high load, which is suitable for the operation of precision instruments.
Smart Images

Figure CN119982769A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of guide rails, and in particular to a linear guide rail assembly with automatic adjustment function and dustproof function. Background Art
[0002] A linear guide is a mechanical component consisting of a guide rail and a slider, and is mainly used to reduce friction between moving parts to ensure smooth and precise movement. However, current linear guides are easily infiltrated with dust during use, resulting in increased friction between the guide rail and the slider, which seriously affects the service life of the guide rail and the slider. In addition, the existing slider and guide rail have poor stability during operation and poor adjustability. Therefore, there is a need to improve the current linear guides. Summary of the invention
[0003] The purpose of the embodiments of the present application is to provide a linear guide assembly with specific automatic adjustment function and dustproof, which can solve the above-mentioned technical problems.
[0004] The embodiment of the present application provides a linear guide assembly with a specific automatic adjustment function and dustproof, comprising a rail body and a sliding assembly, the sliding assembly comprising a slider, a front cover, a rear cover, a front oil scraper, a rear oil scraper, and an oil nozzle, protrusions are arranged at both ends of the rail body, the upper and lower end surfaces of the protrusions are arranged in an arc shape, a groove is arranged in the slider, at least two rows of steel balls are arranged between the protrusions and the slider, a first retainer is arranged between two adjacent rows of steel balls, a second retainer is arranged between the upper end of the rail body and the lower end of the slider, a third retainer is arranged at the lower end of the lowest row of steel balls, the left and right ends of the second retainer and the upper end of the third retainer are arranged in an arc shape, a dustproof piece is arranged between the rail body and the third retainer, an installation groove is arranged in the third retainer, and the dustproof piece is obliquely installed in the installation groove, the front oil scraper and the front cover are sequentially installed at the front end of the slider, the rear oil scraper and the rear cover are sequentially installed at the rear end of the slider, and the oil nozzle sequentially penetrates the front oil scraper and the front cover to extend into the slider.
[0005] Preferably, the horizontal line surface of the dustproof piece is arranged in an "Ω" shape, the front end of the dustproof piece extends into the front end cover, and the rear end of the dustproof piece extends into the rear end cover.
[0006] Preferably, protrusions are further provided at the left and right ends of the track body, the protrusions are arranged below the bulge, the upper end of the protrusions is inclined, the lower end of the slider abuts against the upper end of the protrusions, and the lower end of the dustproof part abuts against the upper end of the protrusions.
[0007] Preferably, the first retainer is arranged in an outwardly expanding manner, a gap is arranged between the front end of the first retainer and the rail body, and the rear end of the first retainer abuts against the slider.
[0008] Preferably, the lower end of the second retainer is concavely arranged, and a gap is arranged between the lower end of the second retainer and the upper end of the track body.
[0009] Preferably, at least two dustproof parts may be provided, and the dustproof parts are made of metal material.
[0010] Preferably, the front and rear sides of the front oil scraper blade and the front and rear sides of the rear oil scraper blade are made of metal material, and the middle part of the front oil scraper blade and the middle part of the rear oil scraper blade are made of elastic material.
[0011] Preferably, a plurality of bolt holes are provided on the track body, a bolt cover is provided at the upper end of the bolt hole, a sealing ring is provided between the bolt cover and the track body, and the bolt cover is flush with the upper end of the track body.
[0012] Preferably, mounting holes are provided on both the left and right sides of the upper end of the sliding block, and at least two mounting holes are provided on each side, and the mounting holes are threaded holes.
[0013] A linear guide assembly with a specific automatic adjustment function and dustproof, comprising a first guide rail and a second guide rail, wherein at least two sliding assemblies are arranged on the first guide rail and the second guide rail, wherein the sliding assembly comprises a slider, a front end cover, a rear end cover, a front oil scraper, a rear oil scraper, and an oil nozzle, wherein protrusions are arranged at both ends of the track body, wherein the upper and lower end surfaces of the protrusions are arranged in an arc shape, wherein a groove is arranged in the slider, wherein at least two rows of steel balls are arranged between the protrusions and the slider, wherein a first retainer is arranged between the two adjacent rows of steel balls, and wherein a retainer is arranged between the upper end of the track body and the lower end of the slider. A second retainer is provided, and a third retainer is provided at the lower end of the bottom row of steel balls, the left and right ends of the second retainer and the upper end of the third retainer are all arranged in an arc shape, a dustproof member is provided between the track body and the third retainer, a mounting groove is provided in the third retainer, and the dustproof member is obliquely installed in the mounting groove, the front scraper sheet and the front end cover are sequentially installed at the front end of the slider, the rear scraper sheet and the rear end cover are sequentially installed at the rear end of the slider, and the oil nozzle sequentially penetrates the front scraper sheet and the front end cover and extends into the slider.
[0014] Beneficial effects of the present invention:
[0015] The present invention provides a linear guide assembly with a specific automatic adjustment function and dustproof, comprising a rail body and a sliding assembly, wherein the sliding assembly comprises a slider, a front end cover, a rear end cover, a front oil scraper, a rear oil scraper, and an oil nozzle, protrusions are arranged at both ends of the rail body, the upper and lower end surfaces of the protrusions are arranged in an arc shape, a groove is arranged in the slider, at least two rows of steel balls are arranged between the protrusions and the slider, a first retainer is arranged between two adjacent rows of steel balls, a second retainer is arranged between the upper end of the rail body and the lower end of the slider, a third retainer is arranged at the lower end of the lowest row of steel balls, the left and right ends of the second retainer and the upper end of the third retainer are both arranged in an arc shape, a dustproof piece is arranged between the rail body and the third retainer, a mounting groove is arranged in the third retainer, the dustproof piece is obliquely installed in the mounting groove, the front oil scraper, the front end cover are arranged according to the rotation of the slider, and the rotation of the slider is arranged according to the rotation of the slider. The oil nozzle passes through the front scraper sheet and the front cover and extends into the slider in sequence. The slider and the rail body of the present invention are in contact and slide with each other through multiple rows of steel balls, which can effectively reduce the friction between the slider and the rail body. The heat generated during friction is small, which can facilitate high-speed operation. The first retainer, the second retainer, and the third retainer of the present invention can prevent the steel balls from shifting up and down during use, which can provide stability in the operation of the present invention. The dustproof part of the present invention is directly installed in the installation groove. The dustproof part is limited during use, which can effectively prevent dust from entering the slider and the guide rail body, and can extend the service life of the steel balls. The present invention has the characteristics of high rigidity and high load, can run quickly, and has high running accuracy, which is convenient for the operation of precision instruments. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a structural schematic diagram of the present invention.
[0018] The reference numerals are:
[0019] 1. Track body; 2. Sliding assembly; 3. Sliding block; 4. Front cover; 5. Rear cover; 6. Front oil scraper; 7. Rear oil scraper; 8. Oil nozzle; 9. Bump; 10. Groove; 11. Steel ball; 12. First retainer; 13. Second retainer; 13. Third retainer; 14. Dustproof part; 15. Mounting groove; 16. Boss; 17. Bolt hole; 18. Bolt cover; 19. Mounting hole. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0024] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0026] Embodiment 1
[0027] like Figure 1 As shown, a specific automatic adjustment function and dustproof linear guide assembly comprises a rail body 1 and a sliding assembly 2, wherein the sliding assembly 2 comprises a slider 3, a front end cover 4, a rear end cover 5, a front oil scraper 6, a rear oil scraper 7, and an oil nozzle 8. Both ends of the rail body 1 are provided with protrusions 9, and the upper and lower end surfaces of the protrusions 9 are arranged in an arc shape. A groove 10 is arranged in the slider 3. At least two rows of steel balls 11 are arranged between the protrusions 9 and the slider 3, and a first retainer 12 is arranged between two adjacent rows of steel balls 11. A second retainer 13 is arranged between the upper end of the rail body 1 and the lower end of the slider 3, and a third retainer 13 is arranged at the lower end of the lowest row of steel balls 11. The left and right ends of the second retainer 13 and the upper end of the third retainer 13 are arranged in an arc shape. A dustproof member 14 is arranged between the rail body 1 and the third retainer 13, and a mounting groove 15 is arranged in the third retainer 13. The dustproof member 14 is obliquely installed in the mounting groove 15. , the front end cover 4 is sequentially installed at the front end of the slider 3, the rear scraper 7 and the rear end cover 5 are sequentially installed at the rear end of the slider 3, and the oil nozzle 8 sequentially penetrates the front scraper 6 and the front end cover 4 and extends into the slider 3; the slider 3 of the present invention and the rail body 1 are contacted and slid by multiple rows of steel balls 11, which can effectively reduce the friction between the slider 3 and the rail body 1, and the heat generated during friction is small, which can be convenient for high-speed operation, and the first retainer 12, the second retainer 13, and the third retainer 13 of the present invention can prevent the steel balls 11 from shifting up and down during use, which can provide the stability of the operation of the present invention, and the dustproof part 14 of the present invention is directly installed in the installation groove 15, and the dustproof part 14 is limited during use, which can effectively prevent dust from entering the slider 3 and the inside of the guide rail body, and can extend the service life of the steel balls 11. The present invention has the characteristics of high rigidity and high load, can be operated quickly, and has high operating accuracy, which is convenient for the operation of precision instruments.
[0028] In this embodiment, the horizontal line surface of the dustproof piece 14 is set in an "Ω" shape, the front end of the dustproof piece 14 extends into the front end cover 4, and the rear end of the dustproof piece 14 extends into the rear end cover 5; specifically, during use, the dustproof piece 14 can be prevented from shifting, and the dustproof piece 14 is inserted into the mounting groove 15 of the third retainer 13. The "Ω" shape setting can effectively prevent the dustproof piece 14 from falling out of the third retainer 13, thereby limiting the dustproof piece 14.
[0029] In this embodiment, at least two dustproof parts 14 may be provided, and the dustproof parts 14 are made of metal material. Specifically, the number of dustproof parts 14 may be selected appropriately according to the requirements. When the slider 3 slides, the dustproof parts 14 will move along with the slider 3 .
[0030] In this embodiment, protrusions 16 are further provided at the left and right ends of the track body 1. The protrusions 16 are provided below the protrusion 9. The upper end of the protrusion 16 is inclined. The lower end of the slider 3 abuts against the upper end of the protrusion 16. The lower end of the dustproof member 14 abuts against the upper end of the protrusion 16. The protrusion 16 of the present invention provides a supporting force for the lower end of the slider 3, thereby preventing the slider 3 from moving up and down during the movement process.
[0031] In this embodiment, the first retainer 12 is arranged in an outwardly expanding manner, and a gap is arranged between the front end of the first retainer 12 and the rail body 1, and the rear end of the first retainer 12 abuts against the slider 3. The gap between the first retainer 12 and the rail body 1 of the present invention can prevent the first retainer 12 from contacting the slide rail. If the first retainer 12 directly contacts the rail body 1, the friction force will increase, and metal chips will be generated during use, which will shorten the service life of the first retainer 12 and the rail body 1.
[0032] In this embodiment, the lower end of the second retainer 13 is concave, and a gap is set between the lower end of the second retainer 13 and the upper end of the track body 1. The second retainer 13 of the present invention does not contact the upper end of the slider 3, which can reduce the friction of the slider 3 during the sliding process. If the second retainer 13 directly contacts the track body 1, the friction will increase, and metal chips will be generated during use, which will shorten the service life of the second retainer 13 and the track body 1.
[0033] In this embodiment, in order to extend the service life of the present invention, the front and rear sides of the front scraper 6 and the front and rear sides of the rear scraper 7 are made of metal material, and the middle part of the front scraper 6 and the middle part of the rear scraper 7 are made of elastic material.
[0034] In this embodiment, a plurality of bolt holes 17 are provided on the track body 1, and a bolt cover 18 is provided at the upper end of the bolt hole 17. A sealing ring is provided between the bolt cover 18 and the track body 1, and the bolt cover 18 is flush with the upper end of the track body 1. The bolt hole 17 of the present invention can be used to connect the track bodies 1, and the length of the track body 1 can be extended according to needs, and the threaded cover is used to cover the threaded hole to prevent lubricant from entering the threaded hole, and the sealing ring can further prevent the lubricant from entering the threaded hole.
[0035] In this embodiment, mounting holes 19 are provided on the left and right sides of the upper end of the slider 3, and at least two mounting holes 19 are provided on each side. The mounting holes 19 are threaded holes. The mounting holes 19 of the present invention are used to connect with other mechanical equipment, and are connected by threads, which is convenient for later installation and disassembly.
[0036] Embodiment 2
[0037] A specific automatic adjustment function and dustproof linear guide assembly, including a first guide rail and a second guide rail, at least two sliding assemblies 2 are arranged on the first guide rail and the second guide rail, the sliding assembly 2 includes a slider 3, a front cover 4, a rear cover 5, a front scraper 6, a rear scraper 7, and an oil nozzle 8, a protrusion 9 is arranged at both ends of the track body 1, and the upper and lower end surfaces of the protrusion 9 are arranged in an arc shape, a groove 10 is arranged in the slider 3, at least two rows of steel balls 11 are arranged between the protrusion 9 and the slider 3, a first retainer 12 is arranged between the two adjacent rows of steel balls 11, and a first retainer 12 is arranged between the upper end of the track body 1 and the lower end of the slider 3. A second retainer 13 is provided at the lower end of the steel balls 11 in the lowermost row. The left and right ends of the second retainer 13 and the upper end of the third retainer 13 are all arranged in an arc shape. A dustproof member 14 is provided between the track body 1 and the third retainer 13. A mounting groove 15 is provided in the third retainer 13. The dustproof member 14 is obliquely installed in the mounting groove 15. The front scraper blade 6 and the front end cover 4 are sequentially installed at the front end of the slider 3. The rear scraper blade 7 and the rear end cover 5 are sequentially installed at the rear end of the slider 3. The oil nozzle 8 sequentially penetrates the front scraper blade 6 and the front end cover 4 and extends into the slider 3.
[0038] The present invention can install large mechanical equipment through multiple sliding components 2, the top corners of the large equipment can be installed on the multiple sliding components 2, and the large mechanical equipment can be driven by the multiple sliding components 2 to slide along the first guide rail and the second guide rail.
[0039] The remaining implementation methods of this embodiment are the same as those of the embodiment, and will not be repeated here.
[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A linear guide assembly with automatic adjustment function and dustproof, characterized in that: The invention comprises a track body and a sliding assembly, wherein the sliding assembly comprises a slider, a front end cover, a rear end cover, a front oil scraper, a rear oil scraper and an oil nozzle. Both ends of the track body are provided with protrusions, and the upper and lower end surfaces of the protrusions are arranged in an arc shape. A groove is arranged in the slider. At least two rows of steel balls are arranged between the protrusion and the slider, and a first retainer is arranged between two adjacent rows of steel balls. A second retainer is arranged between the upper end of the track body and the lower end of the slider, and a third retainer is arranged at the lower end of the lowest row of steel balls. The left and right ends of the second retainer and the upper end of the third retainer are arranged in an arc shape. A dustproof piece is arranged between the track body and the third retainer, and an installation groove is arranged in the third retainer. The dustproof piece is obliquely installed in the installation groove. The front oil scraper and the front end cover are sequentially installed at the front end of the slider, and the rear oil scraper and the rear end cover are sequentially installed at the rear end of the slider. The oil nozzle sequentially penetrates the front oil scraper and the front end cover and extends into the slider.
2. A linear guide assembly with automatic adjustment function and dustproof according to claim 1, characterized in that: The horizontal line surface of the dustproof piece is arranged in an "Ω" shape, the front end of the dustproof piece extends into the front end cover, and the rear end of the dustproof piece extends into the rear end cover.
3. A linear guide assembly with automatic adjustment function and dustproof according to claim 1, characterized in that: The left and right ends of the track body are also provided with protrusions, the protrusions are arranged below the convex block, the upper end of the protrusions is arranged obliquely, the lower end of the slider abuts against the upper end of the protrusions, and the lower end of the dustproof part abuts against the upper end of the protrusions.
4. A linear guide assembly with automatic adjustment function and dustproof according to claim 1, characterized in that: The first retainer is arranged in an outwardly expanding manner, a gap is arranged between the front end of the first retainer and the rail body, and the rear end of the first retainer abuts against the slider.
5. A linear guide assembly with automatic adjustment function and dustproof according to claim 1, characterized in that: The lower end of the second retainer is arranged in a concave manner, and a gap is arranged between the lower end of the second retainer and the upper end of the track body.
6. A dustproof linear guide assembly with automatic adjustment function according to claim 2, characterized in that: At least two dustproof parts may be provided, and the dustproof parts are made of metal material.
7. A linear guide assembly with automatic adjustment function and dustproof according to claim 1, characterized in that: The front and rear sides of the front oil scraper blade and the front and rear sides of the rear oil scraper blade are made of metal material, and the middle part of the front oil scraper blade and the middle part of the rear oil scraper blade are made of elastic material.
8. The automatic adjustment and dustproof linear guide assembly according to claim 1, characterized in that: The track body is provided with a plurality of bolt holes, the upper ends of the bolt holes are provided with bolt covers, a sealing ring is provided between the bolt cover and the track body, and the bolt cover is flush with the upper end of the track body.
9. The dustproof linear guide assembly with automatic adjustment function according to claim 1, characterized in that: The left and right sides of the upper end of the sliding block are both provided with mounting holes, and at least two mounting holes are provided on each side, and the mounting holes are threaded holes.
10. A linear guide assembly with automatic adjustment function and dustproof, characterized in that: The invention comprises a first guide rail and a second guide rail, wherein at least two sliding components are arranged on the first guide rail and the second guide rail, and the sliding components comprise a slider, a front end cover, a rear end cover, a front oil scraper, a rear oil scraper, and an oil nozzle. Both ends of the track body are provided with protrusions, and the upper and lower end surfaces of the protrusions are arranged in an arc shape. A groove is arranged in the slider, and at least two rows of steel balls are arranged between the protrusions and the slider, and a first retainer is arranged between two adjacent rows of steel balls. A second retainer is arranged between the upper end of the track body and the lower end of the slider, and a third retainer is arranged at the lower end of the lowest row of steel balls. The left and right ends of the second retainer and the upper end of the third retainer are arranged in an arc shape. A dustproof piece is arranged between the track body and the third retainer, and an installation groove is arranged in the third retainer. The dustproof piece is obliquely installed in the installation groove. The front oil scraper and the front end cover are sequentially installed at the front end of the slider, and the rear oil scraper and the rear end cover are sequentially installed at the rear end of the slider, and the oil nozzle sequentially penetrates the front oil scraper and the front end cover and extends into the slider.