Heavy-load ball linear guide rail

Abstract

The invention provides a heavy-load ball linear guide rail and relates to the field of guide rails, the heavy-load ball linear guide rail comprises a guide rail body and a sliding assembly, a protrusion and a groove are arranged, and DF of an arc groove of the protrusion is set to be 45 degrees, so that a steel ball can be self-adjusted after deviation is generated, and the automatic aligning capacity of the steel ball can be improved; when the guide rail is used, lubricating oil can be added through the oil nozzle assembly, then the position between the guide rail body and the sliding block is evenly coated with the lubricating oil through the first oil scraping piece and the second oil scraping piece in a scraping mode, the dustproof piece can prevent dust and impurities from entering the position between the sliding block and the guide rail body, and the service life of the guide rail is prolonged. In the linear operation process, the first end cover, the second end cover, the first oil scraping piece and the second oil scraping piece can scrape dust on the guide rail body, the possibility that dust and impurities enter the space between the sliding block and the guide rail body can be further reduced, and the guide rail is simple in structure, reasonable in design and convenient to use.

Description

Technical Field

[0001] The present application relates to the field of guide rails, and in particular to a heavy-load ball linear guide rail. Background Art

[0002] Linear guide systems generally have sliders that slide directly on the guide rails. During the sliding process, the friction coefficient is large, and the load is low during transportation. Some guide rails are difficult to replace after being damaged during operation, and dust and other impurities will enter, which accelerates the friction between the slider and the guide rail, making it more susceptible to damage. In addition, the linear guide cannot automatically adjust during operation and runs unsteadily. Therefore, the current linear guides need to be improved. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a heavy-load ball linear guide that can solve the above-mentioned technical problems.

[0004] The embodiment of the present application provides a heavy-load ball linear guide, including a guide body and a sliding component, the sliding component including a slider, a first end cover, a second end cover, a first oil scraper, a second oil scraper, and an oil nozzle, the guide body is provided with protrusions at both ends, the slider is provided with a groove, the end face of the protrusion is provided with a first circular arc, the interior of the groove is provided with a second circular arc, a steel ball is provided between the first circular arc and the second circular arc, a dustproof part is provided between the slider and the guide body, the dustproof part is provided at the lower end of the slider, the first end cover and the second end cover are respectively installed at the front and rear ends of the slider, the first oil scraper is installed at the front end of the first end cover, and the second oil scraper is installed at the rear end of the second end cover, the oil nozzle passes through the first oil scraper and the first end cover and extends to the interior of the slider, and the DF of the circular arc groove of the protrusion is 40-45°.

[0005] Preferably, at least two rows of steel balls are arranged between the guide rail body and the slider.

[0006] Preferably, the slider includes a first side slider, a middle slider, and a second side slider, and the first side slider, the middle slider, and the second side slider are connected in sequence, and steel balls are arranged between the first side slider and the middle slider, and between the second side slider and the middle slider, and there are multiple steel balls.

[0007] Preferably, the first oil scraper blade and the second oil scraper blade each include a plurality of metal sheets and a plurality of elastic sheets, the metal sheets and the elastic sheets are cross-arranged, and the lower ends of the metal sheets and the elastic sheets are both in contact with the upper end of the track body.

[0008] Preferably, a first steel ball retainer is provided between the slider and the rail body, a second steel ball retainer is provided between the steel ball and the groove, the first steel ball retainer abuts against the top row of the steel balls, and the second steel ball retainer abuts against the bottom row of the steel balls.

[0009] Preferably, the lower end of the first steel ball retainer is arranged in an arc shape, the upper end of the first steel ball retainer is arranged in a straight line, the upper end of the second steel ball retainer is arranged in an arc shape, and the lower end of the second steel ball retainer is arranged in a straight line.

[0010] Preferably, a cavity is provided in the middle between the guide rail body and the slider, and the transverse diameter of the cavity is 0.5-1 cm.

[0011] Preferably, at least two threaded holes are provided on the upper end of the first side slider and the upper end of the second side slider, and the depth of the threaded holes is at least 2 cm.

[0012] Preferably, a protrusion extending inward is provided at the lower end of the sliding block, and a sliding groove used in conjunction with the protrusion is provided on the guide rail body, and the sliding groove is arranged in an outward expansion style.

[0013] A heavy-load ball linear guide, comprising 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 first end cover, a second end cover, a first oil scraper, a second oil scraper, and an oil nozzle. Both left and right ends of the first guide rail and both left and right ends of the second guide rail are provided with protrusions, a groove is arranged inside the slider, the end surface of the protrusion is provided with a first arc shape, the interior of the groove is provided with a second arc shape, a steel ball is arranged between the first arc shape and the second arc shape, a dustproof member is arranged between the slider and the first guide rail, and between the slider and the second guide rail, and the dustproof member is arranged at the lower end of the slider, the first end cover and the second end cover are respectively mounted on the front and rear ends of the slider, the first oil scraper is mounted on the front end of the first end cover, and the second oil scraper is mounted on the rear end of the second end cover, the oil nozzle penetrates the first oil scraper and the first end cover and extends to the inside of the slider, and the DF of the arc groove of the protrusion is 40-45°.

[0014] Beneficial effects of the present invention:

[0015] A heavy-load ball linear guide provided by the present invention comprises a guide rail body and a sliding assembly, wherein the sliding assembly comprises a slider, a first end cover, a second end cover, a first oil scraper, a second oil scraper, and an oil nozzle, wherein protrusions are arranged at the left and right ends of the guide rail body, a groove is arranged inside the slider, a first circular arc is arranged on the end face of the protrusion, a second circular arc is arranged inside the groove, a steel ball is arranged between the first circular arc and the second circular arc, a dustproof part is arranged between the slider and the guide rail body, the dustproof part is arranged at the lower end of the slider, the first end cover and the second end cover are respectively installed at the front and rear ends of the slider, the first oil scraper is installed at the front end of the first end cover, the second oil scraper is installed at the rear end of the second end cover, and the oil nozzle penetrates the first oil scraper and the first end cover and extends to the slider The DF of the raised arc groove is 40-45°; the setting of the protrusion and the groove of the present invention, and setting the DF of the raised arc groove to 45°, can make the steel ball self-adjust after the deviation occurs, can improve the automatic self-aligning ability of the steel ball, and can make the operation between the slider and the guide rail body smooth. When the present invention is in use, lubricating oil can be added through the oil nozzle assembly, and then the first scraper blade and the second scraper blade are used to evenly scrape the lubricating oil between the guide rail body and the slider, and the dustproof part of the present invention can prevent dust and impurities from entering between the slider and the guide rail body. During the straight-line operation, the first end cover, the second end cover, the first scraper blade, and the second scraper blade can scrape off the dust on the guide rail body, and further reduce the possibility of dust and impurities entering between the slider and the guide rail body. The present invention has a simple structure, a reasonable design, and is easy to use. 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] Figure 2 It is a partial structural schematic diagram of the present invention.

[0019] The reference numerals are:

[0020] 1. Guide rail body; 2. Sliding assembly; 3. Sliding block; 4. First end cover; 5. Second end cover; 6. First oil scraper; 7. Second oil scraper; 8. Oil nozzle; 9. Protrusion; 10. Groove; 11. Steel ball; 12. Dustproof part; 13. First side slider; 14. Middle slider; 15. Second side slider; 16. Steel ball; 17. Metal sheet; 18. Elastic sheet; 19. First steel ball retainer; 20. Second steel ball retainer; 21. Cavity; 22. Threaded hole; 23. Bump; 24. Slide groove. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Embodiment 1

[0028] like Figure 1-2 A heavy-load ball linear guide, comprising a guide body 1, a sliding assembly 2, the sliding assembly 2 comprising a slider 3, a first end cover 4, a second end cover 5, a first oil scraper 6, a second oil scraper 7, and an oil nozzle 8. The left and right ends of the guide body 1 are provided with protrusions 9, the slider 3 is provided with a groove 10, the end surface of the protrusion 9 is provided with a first arc shape, the inside of the groove 10 is provided with a second arc shape, a steel ball 11 is provided between the first arc shape and the second arc shape, a dustproof member 12 is provided between the slider 3 and the guide body 1, the dustproof member 12 is provided at the lower end of the slider 3, the first end cover 4 and the second end cover 5 are respectively installed at the front and rear ends of the slider 3, the first oil scraper 6 is installed at the front end of the first end cover 4, the second oil scraper 7 is installed at the rear end of the second end cover 5, the oil nozzle 8 penetrates the first oil scraper 6 and the first end cover 4 and extends to the slider 3, the DF of the arc groove of the protrusion 9 is 40-45°; the setting of the protrusion 9 and the groove 10 of the present invention, and setting the DF of the arc groove of the protrusion 9 to 45°, can make the steel ball 11 self-adjust after the deviation occurs, can improve the automatic self-aligning ability of the steel ball 11, and can make the slider 3 and the guide rail body 1 run smoothly. When the present invention is in use, lubricating oil can be added through the oil nozzle 8 assembly, and then the first oil scraper 6 and the second oil scraper 7 are used to evenly scrape the lubricating oil between the guide rail body 1 and the slider 3, and the dustproof member 12 of the present invention can prevent dust and impurities from entering between the slider 3 and the guide rail body 1. During the straight-line operation, the first end cover 4, the second end cover 5, the first oil scraper 6, and the second oil scraper 7 can scrape off the dust on the guide rail body 1, and further reduce the possibility of dust and impurities entering between the slider 3 and the guide rail body 1. The present invention has a simple structure, a reasonable design, and is easy to use.

[0029] In the present embodiment, at least two rows of the steel balls 11 are arranged between the guide rail body 1 and the slider 3. The arrangement of the steel balls 11 of the present invention can reduce the friction coefficient between the guide rail body 1 and the slider 3, and can reduce the friction coefficient to one fiftieth of that of the sliding guide. In the process of movement, no slipping will occur, and the positioning accuracy of μm level can be achieved. In the process of operation, due to the small friction coefficient, only a small power is needed to make the slider 3 run, and the heat energy generated during operation is small, which can increase the running speed of the slider 3, and can be suitable for high-speed operation equipment.

[0030] In this embodiment, the slider 3 includes a first side slider 13, a middle slider 14, and a second side slider 15. The first side slider 13, the middle slider 14, and the second side slider 15 are connected in sequence. Steel balls 16 are arranged between the first side slider 13 and the middle slider 14, and between the second side slider 15 and the middle slider 14. There are multiple steel balls 16. The slider 3 of the present invention adopts a split setting, and the inward pressure applied by the first side slider 13 and the second side slider 15 can be adjusted according to needs. Specifically, the first side slider 13 and the middle slider 14, and the second side slider 15 and the middle slider 14 are connected by screws. The screws can be adjusted to adjust the pressure applied by the first side slider 13 and the second side slider 15 to the steel column. The applied pressure of the present invention can be adjusted. Compared with the traditional one-piece slider 3, the present invention can be appropriately adjusted, and when one of them is damaged, it can be directly replaced, and it is convenient to replace components during specific use.

[0031] In this embodiment, the first scraper blade 6 and the second scraper blade 7 each include a plurality of metal sheets 17 and a plurality of elastic sheets 18, the metal sheets 17 and the elastic sheets 18 are cross-arranged, the lower ends of the metal sheets 17 and the lower ends of the elastic sheets 18 are both in contact with the upper end of the track body, the elastic sheets 18 of the present invention can make the lubricating oil more evenly scraped, and the metal sheets 17 can prevent the elastic sheets 18 from deforming during use, so that the elastic sheets 18 can always contact the track body, and the present invention can perform multiple scrapings so that the lubricating oil forms a thin film evenly, thereby preventing slipping caused by excessive local lubricating oil.

[0032] In this embodiment, a first steel ball retainer 19 is arranged between the slider 3 and the track body, and a second steel ball retainer 20 is arranged between the steel ball 11 and the groove 10. The first steel ball retainer 19 abuts against the uppermost row of the steel balls 11, and the second steel ball retainer 20 abuts against the lowermost row of the steel balls 11. The lower end of the first steel ball retainer 19 is arranged in an arc shape, the upper end of the first steel ball retainer 19 is arranged in a straight line, the upper end of the second steel ball retainer 20 is arranged in an arc shape, and the lower end of the second steel ball retainer 20 is arranged in a straight line. The first steel ball retainer 19 and the second steel ball retainer 20 of the present invention can prevent the steel ball 11 from shifting up and down during the sliding process, and the contact surface between the first steel ball retainer 19 and the steel ball 11 and the contact surface between the second steel ball retainer 20 and the steel ball 11 of the present invention are both arranged in an arc shape, so that the steel balls 11 gather toward the middle, which can further reduce the possibility of the steel balls 11 shifting up and down.

[0033] In this embodiment, a cavity 21 is provided in the middle between the guide rail body 1 and the slider 3 , and the transverse diameter of the cavity 21 is 0.5-1 cm. The cavity 21 of the present invention can be used to accommodate more lubricating oil, lubricate a longer rail body, and reduce the contact area between the rail body and the slider 3 .

[0034] In this embodiment, at least two threaded holes 22 are provided at the upper ends of the first side slider 13 and the second side slider 15. The depth of the threaded holes 22 is at least 2 cm. The threaded holes 22 of the present invention are used to connect with other mechanical equipment, and are connected by threads to facilitate subsequent installation and disassembly.

[0035] In this embodiment, a protrusion 23 extending inward is provided at the lower end of the slider 3, and a slide groove 24 used in conjunction with the protrusion 23 is provided on the guide rail body 1. The slide groove 24 is arranged in an outward expansion type. The slider 3 of the present invention wraps the steel ball 11 to reduce the possibility of the steel ball 11 moving up and down, and can further prevent dust. The protrusion 23 of the slider 3 applies a force to the track body, which can improve the stability of the operation of the slider 3.

[0036] Embodiment 2

[0037] A heavy-load ball linear guide, comprising a first guide rail and a second guide rail, wherein at least two sliding components 2 are arranged on the first guide rail and the second guide rail, wherein the sliding component 2 comprises a slider 3, a first end cover 4, a second end cover 5, a first oil scraper 6, a second oil scraper 7, and an oil nozzle 8, wherein both left and right ends of the first guide rail and both left and right ends of the second guide rail are provided with protrusions 9, wherein a groove 10 is arranged inside the slider 3, wherein the end surface of the protrusion 9 is provided with a first arc shape, wherein the inside of the groove 10 is provided with a second arc shape, wherein a groove 10 is arranged between the first arc shape and the second arc shape. A steel ball 11 is arranged, and a dustproof member 12 is arranged between the slider 3 and the first guide rail, and between the slider 3 and the second guide rail. The dustproof member 12 is arranged at the lower end of the slider 3. The first end cover 4 and the second end cover 5 are respectively installed at the front and rear ends of the slider 3. The first oil scraper 6 is installed at the front end of the first end cover 4, and the second oil scraper 7 is installed at the rear end of the second end cover 5. The oil nozzle 8 passes through the first oil scraper 6 and the first end cover 4 and extends to the inside of the slider 3. The DF of the arc groove of the protrusion 9 is 40-45°.

[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 heavy-load ball linear guide, characterized in that: It includes a guide rail body and a sliding component, the sliding component includes a slider, a first end cover, a second end cover, a first oil scraper, a second oil scraper, and an oil nozzle. The left and right ends of the guide rail body are provided with protrusions, the slider is provided with a groove, the end face of the protrusion is provided with a first arc, the inside of the groove is provided with a second arc, a steel ball is provided between the first arc and the second arc, a dustproof part is provided between the slider and the guide rail body, the dustproof part is provided at the lower end of the slider, the first end cover and the second end cover are respectively installed at the front and rear ends of the slider, the first oil scraper is installed at the front end of the first end cover, and the second oil scraper is installed at the rear end of the second end cover, the oil nozzle passes through the first oil scraper and the first end cover and extends to the inside of the slider, and the DF of the arc groove of the protrusion is 40-45°.

2. A heavy-duty ball linear guide according to claim 1, characterized in that: At least two rows of steel balls are arranged between the guide rail body and the slider.

3. A heavy-duty ball linear guide according to claim 1, characterized in that: The slider includes a first side slider, a middle slider, and a second side slider. The first side slider, the middle slider, and the second side slider are connected in sequence. Steel balls are arranged between the first side slider and the middle slider, and between the second side slider and the middle slider. There are multiple steel balls.

4. A heavy-duty ball linear guide according to claim 1, characterized in that: The first scraper blade and the second scraper blade each include a plurality of metal blades and a plurality of elastic blades. The metal blades and the elastic blades are cross-arranged. The lower ends of the metal blades and the elastic blades are both in contact with the upper end of the track body.

5. A heavy-duty ball linear guide rail according to claim 2, characterized in that: A first steel ball retainer is arranged between the slider and the track body, a second steel ball retainer is arranged between the steel ball and the groove, the first steel ball retainer abuts against the top row of the steel balls, and the second steel ball retainer abuts against the bottom row of the steel balls.

6. A heavy-duty ball linear guide rail according to claim 5, characterized in that: The lower end of the first steel ball retainer is arranged in an arc shape, the upper end of the first steel ball retainer is arranged in a straight line, the upper end of the second steel ball retainer is arranged in an arc shape, and the lower end of the second steel ball retainer is arranged in a straight line.

7. A heavy-duty ball linear guide according to claim 1, characterized in that: A cavity is provided in the middle between the guide rail body and the slider, and the transverse diameter of the cavity is 0.5-1 cm.

8. The heavy-duty ball linear guide rail according to claim 3, characterized in that: At least two threaded holes are disposed on the upper ends of the first side slider and the second side slider, and the depth of the threaded holes is at least 2 cm.

9. A heavy-duty ball linear guide according to claim 1, characterized in that: The lower end of the sliding block is provided with a protrusion extending inwardly, and the guide rail body is provided with a sliding groove used in conjunction with the protrusion, and the sliding groove is arranged in an outwardly expanding manner.

10. A heavy-load ball linear guide, 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, wherein the sliding components comprise a slider, a first end cover, a second end cover, a first oil scraper, a second oil scraper, and an oil nozzle, protrusions are arranged at both the left and right ends of the first guide rail and the left and right ends of the second guide rail, a groove is arranged inside the slider, a first arc is arranged on the end surface of the protrusion, a second arc is arranged inside the groove, a steel ball is arranged between the first arc and the second arc, a dustproof part is arranged between the slider and the first guide rail and between the slider and the second guide rail, the dustproof part is arranged at the lower end of the slider, the first end cover and the second end cover are respectively installed at the front and rear ends of the slider, the first oil scraper is installed at the front end of the first end cover, the second oil scraper is installed at the rear end of the second end cover, and the oil nozzle passes through the first oil scraper and the first end cover and extends to the inside of the slider.

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