CN219197910U

CN219197910U - Stable long-life roller linear guide

Info

Publication number: CN219197910U
Application number: CN202223577512.3U
Authority: CN
Inventors: 郑雄; 刘洪江; 张增章
Original assignee: Fujian Linear Intelligent Technology Co ltd
Current assignee: Fujian Linear Intelligent Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-16
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a stable long-life roller linear guide rail, which comprises a linear guide rail, a sliding block, a scraping plate, a sealing end cover, rollers, a roller retainer and a sealing dustproof device, wherein the roller retainer is divided into a middle steel plate retainer, a slideway, a U-shaped steel frame, a retainer, an upper roller retainer and a lower roller retainer, and the sealing dustproof device consists of an upper sealing dustproof plate and a lower sealing dustproof plate.

Description

Stable long-life roller linear guide

Technical Field

The utility model relates to the technical field of roller linear guide rails, in particular to a stable long-service-life roller linear guide rail.

Background

Along with the rapid development of economy, the mechanical industry also synchronously develops rapidly, automatic machining equipment develops towards high precision, high efficiency and the like, and under the rapid development environment, the linear guide rail is widely applied to various industries so far, and is called an important accessory indispensable in the automatic equipment.

The linear guide rail is divided into a ball linear guide rail and a roller linear guide rail according to the form of rolling bodies, the ball linear guide rail reciprocates and moves linearly through the rolling of balls, the roller linear guide rail reciprocates and moves linearly through the rolling of rollers, the rollers are in line contact, the balls are in point contact, the bearing capacity of the roller linear guide rail is larger than that of the ball linear guide rail, and the roller linear guide rail is used for large-scale automatic equipment, such as large-scale mechanical equipment such as a large-scale numerical control machining center, large-scale injection molding equipment and the like.

The conventional roller linear guide rail generally comprises a linear guide rail, a sliding block, rollers, a reflector, a sealing end cover and other mechanisms, the running smoothness of the rollers influences the running precision, running speed, running noise and service life of the roller linear guide rail, and particularly under the use condition that the roller guide rail pair has high bearing capacity, the returning running smoothness is more critical. The roller in the conventional roller linear guide rail can guarantee smooth reciprocating operation to a certain extent, but is limited by the structure of the roller linear guide rail, when the roller linear guide rail bears a large load, the roller falls off in the reciprocating operation process, so that the smoothness of the reciprocating operation of the roller linear guide rail is influenced, and the normal operation of mechanical equipment is influenced.

For this purpose, we propose a stable long-life roller linear guide to solve the above-mentioned problems

Disclosure of Invention

The utility model aims to solve the technical problems of complex installation and adjustment of a ball screw matched with a linear guide rail, more matched parts, complex mechanical structure, large occupied space and high cost in the prior art, and provides a stable long-service-life roller linear guide rail to solve the technical problems.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: comprises a linear guide rail, a sliding block, a scraping plate, a sealing end cover, rollers, roller retainers and a sealing dustproof device, wherein two side surfaces of the upper part of the linear guide rail are respectively provided with an upper roller slideway, two sides of the lower part of the linear guide rail are respectively provided with a lower roller slideway, the linear guide rail at the upper part of the upper roller slideway is provided with an upper roller retainer clamping groove, the linear guide rail at the lower part of the lower roller slideway is provided with a lower roller retainer clamping groove, the roller retainers are divided into a middle steel plate retainer, a slideway, a U-shaped steel frame, a retainer, an upper roller retainer and a lower roller retainer, straight waist grooves are arranged at two sides of the middle of the linear guide rail, the middle steel plate retainer is assembled in the straight waist grooves, the retainer is divided into a square channel groove, an upper roller slideway surface, a lower roller slideway surface, an upper plane and a lower plane, a straight surface is arranged between the square channel groove and the upper plane, a flat surface is also arranged between the square through groove and the lower plane, the upper plane is matched with an upper roller slideway, the lower plane is matched with a lower roller slideway, the retainer is assembled at the outer side of the middle steel plate retainer 601, the upper roller retainer is divided into an upper main body, an upper clamping block and an upper roller right-angle clamping groove, the bottom of the joint of the upper clamping block and the upper main body forms an upper roller right-angle clamping groove, the lower roller retainer is divided into a lower main body, a lower clamping block and a lower roller right-angle clamping groove, the upper clamping block is assembled in the upper roller retainer clamping groove, the lower clamping block is assembled in the lower roller retainer clamping groove, a sliding groove is arranged at the bottom of the sliding block, an upper roller channel and a lower roller channel are arranged on the sliding blocks at two sides of the sliding groove, the upper roller channel is arranged right above the lower roller channel, the slide is assembled in last roller passageway and lower roller passageway, the slide middle part is square roller passageway, the upper portion of spout both sides all is equipped with roller slider passageway, and the lower part of spout both sides all is equipped with roller slider passageway down, and the spout position of going up roller slider passageway upper portion is equipped with roller holder slider draw-in groove, the both sides of spout topmost are equipped with sealed dust guard draw-in groove, and the lower part of roller slider passageway is equipped with roller holder slider draw-in groove down, and the spout position between upper roller slider passageway and the lower roller slider passageway is equipped with the holder draw-in groove, the both sides of spout bottommost are equipped with sealed dust guard draw-in groove down, sealed dust keeper comprises sealed dust guard and lower sealed dust guard down, the one end equipment linear guide rail side the upper portion of top and be located the upper portion of roller holder, the other end joint is in sealed dust guard draw-in groove, the lower seal dust guard equipment linear guide rail side the lower part and be located the lower portion of roller holder down, another end joint is in sealed dust guard draw-in groove down, U frame is U frame and the last and the lower roller holder and the last one end of U frame and the last end of the side of the guide rail, the last end of the U frame and the lower roller holder, the equal laminating of the profile steel, the one end of the upper end and lower roller passageway, the profile steel, the end, the profile steel and the end of the profile steel, the end of the profile steel and the upper end of the profile steel and the lower end laminating and the profile steel and the end support.

Further, the angle between the upper roller raceway surface and the lower roller raceway surface is 90 °.

Further, the angle between the upper plane and the upper roller raceway surface is 90 degrees, and the angle between the lower plane and the lower roller raceway surface is 90 degrees.

Further, the upper roller slideway on the linear guide rail, the upper roller sliding block channel and the lower roller channel on the sliding block form a complete upper roller rolling channel by adding the roller retainer, the lower roller slideway on the linear guide rail 1, the lower roller sliding block channel and the upper roller channel on the sliding block form a complete lower roller rolling channel by adding the roller retainer, and the rollers roll reciprocally in the lower roller rolling channel and the upper roller rolling channel.

Further, the upper plane is attached to the lower portion of the upper roller slideway after the retainer is assembled, the lower plane is attached to the lower portion of the lower roller slideway, the straight surfaces on two sides of the square through groove are attached to the bottom of the straight waist groove, and the middle steel plate retainer is clamped in the square through groove.

Further, the upper roller channel and the lower roller channel are circular channels.

Further, the number of the upper U-shaped steel frames is four, the number of the lower U-shaped steel frames is four, and the U-shaped steel frames are positioned at two axial ends of the sliding block.

Further, the slide way is a plastic slide way or a steel slide way.

Further, the upper U-shaped steel frame is positioned below the lower U-shaped steel frame.

Further, the scraping plate and the sealing end cover are assembled at two axial ends of the sliding block, the sealing end cover is attached to the sliding block, and the scraping plate is attached to the sealing end cover.

Compared with the prior art, the utility model has the advantages that: the roller retainer is arranged to carry out all-dimensional limiting support on the roller, so that the roller can be prevented from falling off, the smooth running of the roller linear guide rail is ensured, the sliding block, the middle retainer and the retainer are fixed together through the screw, the fixed connection among the three is enhanced, the roller can be effectively prevented from falling off, the running smoothness of the roller linear guide rail is ensured, the service life of the sliding block is prolonged, and the sliding rail and the plastic sliding rail can effectively reduce the running noise of the roller.

Drawings

FIG. 1 is a front cross-sectional view of a stabilized long life roller linear guide of the present utility model;

FIG. 2 is a perspective view of a stable long life roller linear guide of the present utility model;

FIG. 3 is a front view of a slider in a stabilized long life roller linear guide of the present utility model;

FIG. 4 is a front view of a cage in a stabilized long life roller linear guide of the present utility model;

FIG. 5 is a front view of a linear guide of a stabilized long life roller linear guide of the present utility model;

FIG. 6 is a perspective view of a cage in a stabilized long life roller linear guide of the present utility model;

FIG. 7 is a perspective view of an intermediate steel plate holder in a stabilized long life roller linear guide of the present utility model;

FIG. 8 is a perspective view of a slide in a stabilized long life roller linear guide of the present utility model

FIG. 9 is a block diagram of an upper roller cage in a stabilized long life roller linear guide of the present utility model;

FIG. 10 is a block diagram of a lower roller cage in a stabilized long life roller linear guide of the present utility model;

in the figure: 1. a linear guide rail; 11. a straight waist groove; 101. an upper roller slideway; 102. a lower roller slideway; 103. an upper roller retainer clamping groove; 104. a lower roller retainer clamping groove; 2. a slide block; 201. a chute; 2011. an upper roller channel; 2012. a lower roller channel; 21. an upper roller slider channel; 22. a lower roller slider channel; 23. a slide block clamping groove of the upper roller retainer; 24. an upper sealing dust-proof plate clamping groove; 25. a lower roller retainer slide block clamping groove; 26. a retainer clamping groove; 27. a lower sealing dust-proof plate clamping groove; 3. a scraper; 4. sealing the end cover; 5. a roller; 6. a roller retainer; 601. a middle steel plate retainer; 602. a slideway; 6021. square roller channels; 603. u-shaped steel frame; 6031. a U-shaped steel frame is arranged; 6032. a lower U-shaped steel frame; 604. a retainer; 6041. square through groove; 6042. an upper roller raceway surface; 6043. a lower roller raceway surface; 6044. an upper plane; 6045. a lower plane; 6046. a flat surface; 605. an upper roller holder; 6051. an upper body; 6052. a clamping block is arranged; 6053. the upper roller right-angle clamping groove; 606. a lower roller holder; 6061. a lower body; 6062. a lower clamping block; 6063. a lower roller right-angle clamping groove; 61. locking the threaded hole; 7. sealing the dustproof device; 701 upper sealing dust guard; 702. and a lower sealing dust-proof plate.

Detailed Description

In view of the defects in the prior art, the technical scheme of the utility model is provided through long-term research and a large number of practices. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

FIG. 1 is a front cross-sectional view of a stabilized long life roller linear guide of the present utility model; FIG. 2 is a perspective view of a stable long life roller linear guide of the present utility model; FIG. 3 is a front view of a slider in a stabilized long life roller linear guide of the present utility model; FIG. 4 is a front view of a cage in a stabilized long life roller linear guide of the present utility model; FIG. 5 is a front view of a linear guide of a stabilized long life roller linear guide of the present utility model; FIG. 6 is a perspective view of a cage in a stabilized long life roller linear guide of the present utility model; FIG. 7 is a perspective view of an intermediate steel plate holder in a stabilized long life roller linear guide of the present utility model; FIG. 8 is a perspective view of a slideway in a stabilized long life roller linear guide of the present utility model; FIG. 9 is a block diagram of an upper roller cage in a stabilized long life roller linear guide of the present utility model; FIG. 10 is a block diagram of a lower roller cage in a stabilized long life roller linear guide of the present utility model; as shown in fig. 1 to 10, a stable long-life roller linear guide provided in an embodiment of the present utility model: comprises a linear guide rail 1, a sliding block 2, a scraping plate 3, a sealing end cover 4, rollers 5, a roller retainer 6 and a sealing dustproof device 7, wherein two side surfaces of the upper part of the linear guide rail 1 are respectively provided with an upper roller slideway 101, two sides of the lower part of the linear guide rail 1 are respectively provided with a lower roller slideway 102, the linear guide rail position of the upper part of the upper roller slideway 101 is provided with an upper roller retainer clamping groove 103, the linear guide rail position of the lower part of the lower roller slideway 102 is provided with a lower roller retainer clamping groove 104, the roller retainer 6 is divided into a middle steel plate retainer 601, a slideway 602, a U-shaped steel frame 603, a retainer 604, an upper roller retainer 605 and a lower roller retainer 606, straight waist grooves 11 are arranged on two sides of the middle of the linear guide rail 1, the middle steel plate retainer 601 is assembled in the straight waist grooves 11, the retainer 604 is divided into a square through groove 6041, an upper roller slideway surface 6042, a lower roller surface 6043, an upper plane 6044 and a lower plane 6045, a straight surface 6046 is arranged between the square through groove 6042 and the upper plane 6043, a straight surface 6046 is also arranged between the square through groove 6042 and the lower plane 6044, the upper plane 6044 is matched with the upper roller slideway 101, the lower plane 6045 is matched with the lower roller slideway 102, the included angle between the upper roller slideway surface 6042 and the lower roller slideway surface 6043 is 90 degrees, the included angle between the upper plane 6044 and the upper roller slideway surface 6042 is 90 degrees, the included angle between the lower plane 6045 and the lower roller slideway surface 6043 is 90 degrees, the design ensures that three angles of the retainer 604 are all right-angle designs, the retainer 604 resembles a square retainer 604, the installation is stable and is not easy to deform, the smooth movement of the roller in the rolling process is ensured, the clamping groove matched with the three angles of the retainer 604 is also right-angle design, the retainer 604 is very stable after the installation, the smooth movement of the roller in the rolling process is ensured, the retainer 604 is assembled outside the middle steel plate retainer 601, the upper roller retainer 605 is divided into an upper main body 6051, an upper clamping block 6052 and an upper roller right angle clamping groove 6053, an upper roller right angle clamping groove 6053 is formed at the bottom of the joint of the upper clamping block 6052 and the upper main body 6051, the upper roller retainer 605 is assembled in the upper roller retainer clamping groove 103 through the upper clamping block 6052, the upper main body 6051 is clamped in an upper roller retainer slide block clamping groove 23 on the slide block 2 so as to be assembled between the linear guide rail and the slide block, the upper roller right angle clamping groove 6053 limits the upper part of the roller, the lower roller retainer 606 is divided into a lower main body 6061, a lower clamping block 6062 and a lower roller right angle clamping groove 6063, a lower roller right angle clamping groove 6063 is formed at the upper part of the joint of the lower clamping block 6062 and the lower main body 6061, the lower clamping block 6062 is assembled in the lower roller retainer clamping groove 104, the lower main body 6061 is clamped in a lower retainer slide block clamping groove 25 on the slide block 2 so as to be assembled between the linear guide rail and the slide block, the lower roller right-angle clamping groove 6063 limits the lower part of the roller, the design limits the upper part and the lower part of the roller, the roller falling off can be effectively avoided, the bottom of the sliding block 2 is provided with a sliding groove 201, the sliding blocks 2 on two sides of the sliding groove 201 are respectively provided with an upper roller channel 2011 and a lower roller channel 2012, the upper roller channel 2011 is arranged right above the lower roller channel 2012, the sliding way 602 is assembled in the upper roller channel 2011 and the lower roller channel 2012, the middle part of the sliding way 602 is a square roller channel 6021, the upper parts on two sides of the sliding groove 201 are respectively provided with an upper roller sliding block channel 21, the lower parts on two sides of the sliding groove 201 are respectively provided with a lower roller sliding block channel 22, the upper roller sliding way 101 on the linear guide rail 1, the upper roller sliding block channels 21 and the lower roller channels 2012 on the sliding block 2 form a complete upper roller rolling way by adding the roller retainer 6, the lower roller slideway 102 on the linear guide rail 1, the lower roller slideway 22 on the slide block 2 and the upper roller slideway 2011 form a complete lower roller rolling way together with the roller retainer 6, the rollers roll reciprocally in the lower roller rolling way and the upper roller rolling way, an upper roller retainer slide block clamping groove 23 is arranged at the chute position of the upper part of the upper roller slideway 21, upper sealing dust guard clamping grooves 24 are arranged at the two sides of the topmost part of the chute 201, a lower roller retainer slide block clamping groove 25 is arranged at the lower part of the lower roller slideway 22, a retainer clamping groove 26 is arranged at the chute position between the upper roller slideway 21 and the lower roller slideway 22, lower sealing dust guard clamping grooves 27 are arranged at the two sides of the bottommost part of the chute 201, the sealing dust guard 7 consists of an upper sealing dust guard 701 and a lower sealing dust guard 702, one end of the upper sealing dust guard 701 is assembled at the topmost part of the side surface of the linear guide rail and is positioned at the upper part of the upper roller retainer 605, the other end is clamped in the upper sealing dust guard clamping groove 24, the lower sealing dust guard 702 is assembled at the lowest part of the side surface of the linear guide rail and is positioned at the lower part of the lower roller retainer 606, the other end is clamped in the lower sealing dust guard clamping groove 27, the U-shaped steel frames 603 are divided into an upper U-shaped steel frame 6031 and a lower U-shaped steel frame 6032, one end of the upper U-shaped steel frame 6031 is jointed with one end of a slideway 602 assembled in the upper roller slide block channel 21, the other end is jointed with one end of a lower roller channel 2012, one end of the lower U-shaped steel frame 6032 is jointed with one end of a slideway assembled in the lower roller slide block channel 22, the other end is jointed with one end of an upper roller channel 2011, locking threaded holes 61 are formed in the slide block 2, the middle steel plate retainer 601 and the retainer 604, the locking threaded holes 61 on the slide block 2, the middle retainer 601 and the retainer 604 are communicated, the sliding block 2, the middle retainer 601 and the retainer 604 penetrate through the locking threaded holes 61 through bolts to fix the sliding block 2, the middle retainer 601 and the retainer 604 together, the fixed connection among the three is enhanced, the roller is prevented from falling off, the running smoothness of the roller linear guide rail is ensured, and the service life of the sliding block is prolonged.

Preferably, after the retainer 604 is assembled, the upper plane 6044 is attached to the lower part of the upper roller slideway, the lower plane 6045 is attached to the lower part of the lower roller slideway, the flat surfaces on both sides of the square through groove 6041 are attached to the bottom of the flat waist groove 11, the middle steel plate retainer 601 is clamped in the square through groove 6041, the lower part of the upper roller slideway surface 6042 and the upper part of the lower roller slideway surface 6043 of the retainer 604 are clamped in the retainer clamping groove 206, and the retainer clamping groove 206 is a right-angle clamping groove.

Preferably, the upper roller channels 2011 and lower roller channels 2012 are circular channels.

Preferably, the number of the upper U-shaped steel frames 6031 is four, the number of the lower U-shaped steel frames 6032 is four, the U-shaped steel frames 603 are located at two axial ends of the sliding block 2, the upper U-shaped steel frames 6031 are located below the lower U-shaped steel frames 6032, and the connection guiding of the U-shaped steel frames 603 is used for forming crossed rollers, so that friction is small, and smooth rolling motion can be obtained.

Preferably, the slide way 602 is a plastic slide way or a steel slide way, the slide way 602 can store lubricating oil, so that the roller 5 has better lubricity, the friction force of the roller is reduced, the service life of the roller is prolonged, and the noise of the roller during operation can be effectively reduced by selecting the plastic slide way.

Preferably, the scraper blade 3 and the seal end cover 4 are assembled at the two axial ends of the sliding block 2, the seal end cover 4 is attached to the sliding block 2, the scraper blade 3 is attached to the seal end cover 4, dust and impurities on the linear guide rail are scraped off by the scraper blade 3, the seal end cover 4 is sealed, the sealing performance of the roller linear guide rail is further improved, friction is reduced, and the service life is prolonged.

Working principle: the upper roller retainer 605 is clamped in the upper roller retainer slide block clamping groove 23 through the upper main body 6051, the upper clamping block 6052 is clamped in the upper roller retainer clamping groove 103, the upper roller retainer 605 is assembled between the linear guide rail 1 and the slide block 2, the lower roller retainer 606 is clamped in the lower roller retainer slide block clamping groove 25 through the lower main body 6061, the lower clamping block 6062 is clamped in the lower roller retainer clamping groove 104, the lower roller retainer 606 is assembled between the linear guide rail 1 and the slide block 2, the upper roller retainer 605, the lower roller retainer 606, the upper roller slideway 101, the lower roller slideway 102, the slideway 602 installed in the upper roller channel 2011, the slideway installed in the lower roller channel 2012, the upper roller slider channel 21, the lower roller slider channel 22, the upper roller slideway surface 6042 and the lower roller slideway surface 6043 carry out all-directional limiting on each surface of the roller, the slide block is prevented from falling off, the middle retainer and the fixed together through screws, the fixed connection between the reinforced rollers can effectively fall off, the linear guide rail 1 and the slide block is prevented from sliding off, the linear guide rail is effectively prolonged, the service life of the linear guide rail is prolonged, the linear guide rail is effectively prolonged, the linear guide rail is reduced, the linear guide rail is sealed, the sliding guide rail is sealed, the linear guide rail is sealed, the dust-proof and the dust-proof sealing device is effectively reduced, the service life of the linear guide is sealed, and the linear guide seal and the linear guide is sealed, and the dust can be sealed, and the dust.

It should be understood that the foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement the same accordingly, without limiting the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. A stable long-life roller linear guide, its characterized in that: comprises a linear guide rail, a sliding block, a scraping plate, a sealing end cover, rollers, roller retainers and a sealing dustproof device, wherein two side surfaces of the upper part of the linear guide rail are respectively provided with an upper roller slideway, two sides of the lower part of the linear guide rail are respectively provided with a lower roller slideway, the linear guide rail at the upper part of the upper roller slideway is provided with an upper roller retainer clamping groove, the linear guide rail at the lower part of the lower roller slideway is provided with a lower roller retainer clamping groove, the roller retainers are divided into a middle steel plate retainer, a slideway, a U-shaped steel frame, a retainer, an upper roller retainer and a lower roller retainer, straight waist grooves are arranged at two sides of the middle of the linear guide rail, the middle steel plate retainer is assembled in the straight waist grooves, the retainer is divided into a square channel groove, an upper roller slideway surface, a lower roller slideway surface, an upper plane and a lower plane, a straight surface is arranged between the square channel groove and the upper plane, a flat surface is also arranged between the square through groove and the lower plane, the upper plane is matched with an upper roller slideway, the lower plane is matched with a lower roller slideway, the retainer is assembled at the outer side of the middle steel plate retainer (601), the upper roller retainer is divided into an upper main body, an upper clamping block and an upper roller right-angle clamping groove, the bottom of the joint of the upper clamping block and the upper main body forms an upper roller right-angle clamping groove, the lower roller retainer is divided into a lower main body, a lower clamping block and a lower roller right-angle clamping groove, the upper part of the joint of the lower clamping block and the lower main body forms a lower roller right-angle clamping groove, the upper clamping block is assembled in the upper roller retainer clamping groove, the lower clamping block is assembled in the lower roller retainer clamping groove, a sliding groove is arranged at the bottom of the sliding block, an upper roller channel and a lower roller channel are arranged on the sliding blocks at two sides of the sliding groove, the upper roller channel is arranged right above the lower roller channel, the slide is assembled in last roller passageway and lower roller passageway, the slide middle part is square roller passageway, the upper portion of spout both sides all is equipped with roller slider passageway, and the lower part of spout both sides all is equipped with roller slider passageway down, and the spout position of going up roller slider passageway upper portion is equipped with roller holder slider draw-in groove, the both sides of spout topmost are equipped with sealed dust guard draw-in groove, and the lower part of roller slider passageway is equipped with roller holder slider draw-in groove down, and the spout position between upper roller slider passageway and the lower roller slider passageway is equipped with the holder draw-in groove, the both sides of spout bottommost are equipped with sealed dust guard draw-in groove down, sealed dust keeper comprises sealed dust guard and lower sealed dust guard down, the one end equipment linear guide rail side the upper portion of top and be located the upper portion of roller holder, the other end joint is in sealed dust guard draw-in groove, the lower seal dust guard equipment linear guide rail side the lower part and be located the lower portion of roller holder down, another end joint is in sealed dust guard draw-in groove down, U frame is U frame and the last and the lower roller holder and the last one end of U frame and the last end of the side of the guide rail, the last end of the U frame and the lower roller holder, the equal laminating of the profile steel, the one end of the upper end and lower roller passageway, the profile steel, the end, the profile steel and the end of the profile steel, the end of the profile steel and the upper end of the profile steel and the lower end laminating and the profile steel and the end support.

2. A stabilized long life roller linear guide as claimed in claim 1, wherein: the angle between the upper roller raceway surface and the lower roller raceway surface is 90 deg..

3. A stabilized long life roller linear guide as claimed in claim 1, wherein: the angle between the upper plane and the upper roller raceway surface is 90 degrees, and the angle between the lower plane and the lower roller raceway surface is 90 degrees.

4. A stabilized long life roller linear guide as claimed in claim 1, wherein: the upper roller slideway on the linear guide rail, the upper roller sliding block channel and the lower roller channel on the sliding block form a complete upper roller rolling channel by adding the roller retainer, the lower roller slideway on the linear guide rail, the lower roller sliding block channel and the upper roller channel on the sliding block form a complete lower roller rolling channel by adding the roller retainer, and the rollers roll in the lower roller rolling channel and the upper roller rolling channel in a reciprocating manner.

5. A stabilized long life roller linear guide as claimed in claim 1, wherein: the upper plane is attached to the lower portion of the upper roller slideway after the retainer is assembled, the lower plane is attached to the lower portion of the lower roller slideway, the straight surfaces on two sides of the square through groove are attached to the bottom of the straight waist groove, and the middle steel plate retainer is clamped in the square through groove.

6. A stabilized long life roller linear guide as claimed in claim 1, wherein: the upper roller channel and the lower roller channel are circular channels.

7. A stabilized long life roller linear guide as claimed in claim 1, wherein: the upper U-shaped steel frames are four in number, the lower U-shaped steel frames are four in number, and the U-shaped steel frames are positioned at two axial ends of the sliding block.

8. A stabilized long life roller linear guide as claimed in claim 1, wherein: the slideway is a plastic slideway or a steel slideway.

9. A stabilized long life roller linear guide as claimed in claim 1, wherein: the lower U-shaped steel frame is positioned below the lower U-shaped steel frame.

10. A stabilized long life roller linear guide as claimed in claim 1, wherein: the scraping plate and the sealing end cover are assembled at two axial ends of the sliding block, the sealing end cover is attached to the sliding block, and the scraping plate is attached to the sealing end cover.