Roller type linear guide rail pair

Abstract

The present application relates to a kind of roller linear guide, comprising: guide rail and slider assembly;The slider assembly includes the slider body on the guide rail sliding;The roller linear guide further includes the roller structure being set on the both sides of the guide rail and can be rolled along guide rail;The roller mechanism includes guide and the retainer connected the both ends of guide, multiple rollers are slidably installed on the guide;One side wall of the guide pipe is provided with oil storage cavity, the oil storage cavity is communicated with the oil injection assembly being installed on one of the circulation end cap by one-way oil inlet pipe, the oil storage cavity is open to the side of the roller, and its inner side slides piston plate, the piston plate is connected with the inner wall of the oil storage cavity by spring, the piston plate is installed with daubing cotton towards the side of the roller, and multiple one-way oil outlet holes are arranged on the piston plate;The piston plate is provided with two arc protrusions towards the side of the roller.

Description

TECHNICAL FIELD

[0001] The present application relates to the rail related technical field, specifically a kind of roller linear guide. BACKGROUND

[0002] The linear guide of the present application, by setting curve guide groove and setting ball in curve guide groove, make ball circulate and discharge to the slider and guide between the guide groove, to play the role of bearing.But because curve guide groove is curve, when the speed of slider exceeds 12m / s, due to the reason that the linear speed of ball is higher than the line speed of ball in curve, the ball in guide groove cannot be discharged in time to linear guide, cause the ball between slider and guide to be dead and cannot rotate, thus cause guide to be injured or ball groove to be broken, etc., therefore, the structure that ball is changed into roller appears.

[0003] But whether it is ball or roller, generally need to smear lubricating on ball or roller, to ensure that slider moves smoothly, and existing is through artificial intermittent addition of lubricating oil, but in the process of adding, need to stop operation, reduce work efficiency. SUMMARY

[0004] The present application aims to provide a kind of roller linear guide, to solve the problems raised in the above background.

[0005] To achieve the above object, the present application provides the following technical scheme:

[0006] A kind of roller linear guide, comprising:

[0007] Guide rail and slider assembly, the slider assembly slides along the guide rail;

[0008] The slider assembly includes slider body sliding on the guide rail and circulating end cap detachably mounted on both ends of the slider body and detachably connected with the slider body;

[0009] The roller linear guide further includes roller structure arranged on both sides of the guide rail and can roll along the guide rail, the roller structure is installed on two circulating end caps and penetrates the slider body;

[0010] The roller mechanism includes guider and retainer connected to both ends of guider, a plurality of rollers are slidingly installed on the guider, and a plurality of the rollers form an annular structure, a guide tube for limiting the rollers is arranged between the two retainers;

[0011] The side wall of the conduit is provided with an oil storage cavity, the oil storage cavity is communicated with an oil injection assembly installed on one of the circulating end covers through a one-way oil inlet pipe, the oil storage cavity is provided in an open shape towards one side of the roller, and a piston plate is slidably arranged in the oil storage cavity, the piston plate is connected to the inner wall of the oil storage cavity through a spring, a daubing cotton is installed on the side of the piston plate towards the roller, and a plurality of one-way oil outlet holes are arranged on the piston plate.

[0012] The side of the piston plate towards the roller is provided with two arc-shaped protrusions, which press the piston plate when the roller passes through the arc-shaped protrusions.

[0013] As a further scheme of the present application, the side of the circulating end cover away from the slider body is detachably provided with a dust scraping plate, and the shape of the dust scraping plate is the same as that of the circulating end cover.

[0014] As a further scheme of the present application, the oil injection assembly comprises an oil injection flow channel arranged on the circulating end cover and communicated with the one-way oil inlet pipe, and an oil nozzle is detachably installed at the end of the oil injection flow channel away from the one-way oil inlet pipe.

[0015] As a further scheme of the present application, the roller type linear guide rail pair further comprises a dustproof structure, the dustproof structure comprises an upper dustproof sheet and a lower dustproof sheet, the upper dustproof sheet is installed between the slider body and the guide rail, and both ends are fixed with two circulating end covers respectively.

[0016] The lower dustproof sheet is provided with two, which are respectively located on both sides of the guide rail and fixed with the retainer.

[0017] As a further scheme of the present application, the conduit is provided with four, two of which are inserted into the mounting holes arranged on the slider body, and the other two are towards the guide grooves on the guide rail, and the two conduits towards the guide grooves are provided with notch grooves, the roller protrudes from the notch grooves and contacts the guide groove wall on the guide rail.

[0018] As a further scheme of the present application, the two ends of the guide are provided with arc-shaped passing surfaces, and the roller realizes directional movement when passing through the arc-shaped passing surfaces.

[0019] As a further scheme of the present application, the roller is provided in a cylindrical structure.

[0020] Compared with the prior art, the application has the advantages of novelty, when the roller moves and extrudes the arc-shaped protrusion, the piston plate is driven to move, and the spring is extruded, at this time, the lubricating oil in the oil storage cavity is supplemented to the rubbing cotton through the one-way oil outlet hole, and then the roller is coated with the lubricating oil through the rubbing cotton, and when the roller is separated from the arc-shaped protrusion, the piston plate is reset under the action of the spring, at this time, the lubricating oil in the oil storage cavity is supplemented through the one-way oil inlet pipe, the automatic supplement of the lubricating oil on the roller is realized, the degree of automation is high, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structural schematic view of the roller type linear guide rail pair.

[0022] Fig. 2 It is an exploded view of the structure of the roller type linear guide rail pair.

[0023] Fig. 3 It is a structural schematic view of the roller structure in the roller type linear guide rail pair.

[0024] Fig. 4 It is another angle structural schematic view of the roller structure in the roller type linear guide rail pair.

[0025] Fig. 5 It is a sectional view of the connection of the roller and the guide pipe in the roller type linear guide rail pair.

[0026] In the figure: 1-guide rail, 2-circulation end cover, 3-dust scraping plate, 4-sliding block body, 5-oil nozzle, 6-gasket, 7-oil injection flow channel, 8-upper dustproof sheet, 9-mounting hole, 10-guide pipe, 11-lower dustproof sheet, 12-retainer, 13-roller, 14-notch groove, 15-guide, 16-one-way oil inlet pipe, 17-spring, 18-oil storage cavity, 19-rubbing cotton, 20-piston plate, 21-arc-shaped protrusion. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0028] In addition, elements in the application can be referred to as "fixed" or "set" in another element, which can be directly on another element or can exist in the middle of the element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can exist simultaneously with a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0029] Please refer to Figs. 1-5 In an embodiment of the application, a roller type linear guide rail pair comprises:

[0030] The guide rail 1 and the slider assembly, the slider assembly slides along the guide rail 1;

[0031] The slider assembly comprises a slider body 4 sliding on the guide rail 1 and a circulating end cover 2 detachably mounted on both ends of the slider body 4 and detachably connected with the slider body 4. Preferably, the circulating end cover 2 is fixed with the slider body 4 by bolts, of course, other fixing methods can also be used as long as the fixing requirements are met, and the application does not make specific limitation here.

[0032] The roller type linear guide rail pair further comprises a roller structure arranged on both sides of the guide rail 1 and rollable along the guide rail 1, the roller structure is mounted on two circulating end covers 2 and penetrates the slider body 4, wherein the roller mechanism comprises a guide 15 and a retainer 12 connected between both ends of the guide 15, a plurality of rollers 13 are slidingly mounted on the guide 15, and the plurality of rollers 13 form a ring structure, arc-shaped passing surfaces are arranged at both ends of the guide 15, the rollers 3 realize directional movement when passing through the arc-shaped passing surfaces, a guide pipe 10 for limiting the rollers 13 is arranged between the two retainers 12, the ring structure formed by the plurality of rollers 13 moves on the guide 15 and is limited by the guide pipe 10, the rollers 13 are arranged in a cylindrical structure, which can increase the contact area between the rollers 13 and the guide rail 1, thereby improving the stability of the movement of the slider body 4, so that the carrying capacity of the linear guide rail pair is enhanced, and the service life of the linear guide rail pair is improved.

[0033] Further, one side wall of the conduit 10 is provided with an oil storage cavity 18, the oil storage cavity 18 is communicated with an oil injection assembly installed on one of the circulating end covers 2 through a one-way oil inlet pipe 16, the oil storage cavity 18 is provided in an open manner towards one side of the roller 13, and a piston plate 20 is slidably arranged in the oil storage cavity 18, the piston plate 20 is connected with the inner wall of the oil storage cavity 18 through a spring 17, a daubing cotton 19 is installed on one side of the piston plate 20 towards the roller 13, and a plurality of one-way oil outlet holes are arranged on the piston plate 20; two arc-shaped protrusions 21 are arranged on one side of the piston plate 20 towards the roller 13, and the roller 13 extrudes the piston plate 20 when passing through the arc-shaped protrusions 21.

[0034] When the slider body 14 moves, the roller 13 moves on the guide 15 and enters the conduit 10 to move, when the roller 13 moves and extrudes the arc-shaped protrusions 21, the piston plate 20 is driven to move, and the spring 17 is extruded at the same time, at this time, the lubricating oil in the oil storage cavity 18 is supplemented to the daubing cotton 19 through the one-way oil outlet hole, and then the roller 13 passing through the daubing cotton 19 is daubed with lubricating oil, and when the roller 13 is separated from the arc-shaped protrusions 21, the piston plate 20 is reset under the action of the spring 17, at this time, the lubricating oil in the oil storage cavity 18 is supplemented through the one-way oil inlet pipe 16, so that the automatic supplement of the lubricating oil on the roller 13 is realized, the degree of automation is high, and the practicability is strong.

[0035] As another embodiment of the present application, the circulating end cover 2 is detachably installed with a dust scraping plate 3 away from one side of the slider body 4, the shape of the dust scraping plate 3 is the same as that of the circulating end cover 2, and the dust scraping plate 3 arranged can prevent the dust on the guide rail 1 from entering between the guide rail 1 and the slider body 4 to affect the use effect, preferably, the dust scraping plate 3 is fixed with the circulating end cover 2 through bolts.

[0036] Further, the oil injection assembly comprises an oil injection flow channel 7 arranged on the circulating end cover 2 and communicated with the one-way oil inlet pipe 16, and an oil nozzle 5 is detachably installed at one end of the oil injection flow channel 7 away from the one-way oil inlet pipe 16, in use, the oil nozzle 5 is used for connecting a oil supply equipment, the oil injection flow channel 7 is communicated with the oil nozzle 5 and the one-way oil inlet pipe 16, and the continuous supply of lubricating oil is realized.

[0037] Preferably, the roller type linear guide rail pair further comprises a dustproof structure, the dustproof structure comprises an upper dustproof sheet 8 and a lower dustproof sheet 11, the upper dustproof sheet 8 is installed between the slider body 4 and the guide rail 1, and both ends are fixed with two circulating end covers 2 respectively; the lower dustproof sheet 11 is provided with two, which are located on both sides of the guide rail 1 respectively, and are fixed with the retainer 12, the upper dustproof sheet 8 and the lower dustproof sheet 11 arranged can prevent the dust from entering between the slider body 4 and the guide rail 1 when the slider body 4 moves.

[0038] The conduits 10 are provided with four, two of which are inserted in mounting holes 9 provided on the slider body 4, the other two are directed towards the guide slots on the guide rail 1, and the two conduits 10 directed towards the guide slots are provided with notched slots 14, the rollers 13 protrude from the notched slots 14 and are in contact with the walls of the guide slots on the guide rail 1.

[0039] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather that it can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being defined by the appended claims rather than by the above description, and it is therefore intended that all changes and modifications that fall within the meaning and range of equivalency of the claims be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0040] Furthermore, it should be understood that although the present specification describes only a single independent technical solution for each embodiment, the specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A roller-type linear guide pair, characterized in that, include: A guide rail (1) and a slider assembly, wherein the slider assembly slides along the guide rail (1); The slider assembly includes a slider body (4) that slides on the guide rail (1) and a removable end cap (2) that is detachably mounted on both ends of the slider body (4) and detachably connected to the slider body (4); The roller-type linear guide pair also includes roller structures disposed on both sides of the guide rail (1) and capable of rolling along the guide rail (1). The roller structures are mounted on the two circulating end caps (2) and penetrate the slider body (4). The roller structure includes a guide (15) and a retainer (12) connecting the two ends of the guide (15). Multiple rollers (13) are slidably mounted on the guide (15), and the multiple rollers (13) form a ring structure. A conduit (10) for limiting the rollers (13) is provided between the two retainers (12). An oil storage chamber (18) is provided on one side wall of the conduit (10). The oil storage chamber (18) is connected to an oil injection assembly installed on one of the circulation end caps (2) through a one-way oil inlet pipe. The oil storage chamber (18) is open on the side facing the roller (13), and a piston plate (20) slides on its inner side. The piston plate (20) is connected to the inner wall of the oil storage chamber (18) through a spring (17). An applicator (19) is installed on the side of the piston plate (20) facing the roller (13), and multiple one-way oil outlet holes are provided on the piston plate (20). The piston plate (20) has two arc-shaped protrusions (21) on the side facing the roller (13). When the roller (13) passes the arc-shaped protrusions (21), it squeezes the piston plate (20).

2. The roller-type linear guide pair according to claim 1, characterized in that, A dust scraper (3) is detachably installed on the side of the circulation end cap (2) away from the slider body (4), and the shape of the dust scraper (3) is the same as that of the circulation end cap (2).

3. A roller-type linear guide pair according to claim 1, characterized in that, The oil injection assembly includes an oil injection channel (7) disposed on the circulation end cap (2) and connected to the one-way oil inlet pipe (16), and an oil nozzle (5) is detachably installed at one end of the oil injection channel (7) away from the one-way oil inlet pipe (16).

4. A roller-type linear guide pair according to claim 1, characterized in that, The roller-type linear guide pair also includes a dustproof structure, which includes an upper dustproof sheet (8) and a lower dustproof sheet (11). The upper dustproof sheet (8) is installed between the slider body (4) and the guide rail (1), and its two ends are respectively fixed to the two circulating end caps (2). Two lower dustproof plates (11) are provided, located on both sides of the guide rail (1) and fixed to the retainer (12).

5. A roller-type linear guide pair according to claim 1, characterized in that, Four conduits (10) are provided, two of which are inserted into the mounting holes (9) provided on the slider body (4), and the other two face the guide groove on the guide rail (1). The two conduits (10) facing the guide groove are provided with notch grooves (14), and the roller (13) protrudes from the notch grooves (14) and contacts the guide groove wall on the guide rail (1).

6. A roller-type linear guide pair according to claim 1, characterized in that, The guide (15) has arc-shaped passing surfaces at both ends, and the roller (13) moves in a different direction when passing through the arc-shaped passing surfaces.

7. A roller-type linear guide pair according to claim 1, characterized in that, The roller (13) is arranged in a cylindrical structure.

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