Anti-derailing linear slide rail structure

Abstract

The utility model provides a kind of anti derailment linear slide rail structure, it belongs to linear slide rail field, it includes: slide rail, the upper end of the slide rail is T-shaped shape, the both sides of the slide rail are equipped with ball groove;Slide sleeve on the slide rail, the both sides of the slide sleeve are equipped with oil groove, glass plate is placed in the oil groove and is sealed by glass cement, a plurality of ball in the oil groove is movably equipped on the slide sleeve, the ball rolls in ball groove, sponge block that is in contact with ball is equipped in the oil groove.The utility model adopts ball rolling to replace sliding friction, greatly reduce abrasion, improve guiding accuracy and service life;Slide rail and slide sleeve are reasonably designed, cooperate high-precision ball and lubrication system, ensure smooth movement.

Description

Technical Field

[0001] This utility model relates to the field of linear guide rail technology, and in particular to an anti-derailment linear guide rail structure. Background Technology

[0002] In the high-precision field of semiconductor manufacturing, the precise positioning of photolithography, the meticulous operation of testing and packaging, and the accurate control of shape contour measurement all rely on stable and reliable guiding structures. Similarly, in the biomedical field, critical processes such as gene sequencing also place stringent requirements on the stability of equipment operation. As a core component ensuring the stable guidance of moving parts, the slide rail structure plays an indispensable role in these fields, directly determining the stability and reliability of the equipment during use.

[0003] Currently, common linear guideways are typically designed with carefully crafted U-shaped grooves on the sidewalls of the guideway, while corresponding protrusions on the inner wall of the slider are installed to closely match the U-shaped grooves. The initial intention of this design was to effectively reduce the risk of the slider slipping off the guideway through their interlocking, thereby ensuring the stable operation of the guideway system. However, this traditional anti-derailment structure has significant drawbacks in practical applications. Because the contact between the slider and the guideway is based on sliding friction, wear becomes severe during long-term, frequent use. As wear intensifies, it not only significantly reduces the accuracy of the guideway's guidance, affecting the normal operating precision of the equipment, but also drastically shortens the lifespan of the guideway, increasing equipment maintenance and replacement costs. For example, the guideway structure disclosed in the prior art (CN217926775U) suffers from the aforementioned technical problem of severe wear due to sliding friction, which consequently affects guiding accuracy and lifespan.

[0004] Therefore, this application proposes an anti-derailment linear guide structure. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a derailment-proof linear slide rail structure.

[0006] An embodiment of this utility model provides an anti-derailment linear guide rail structure, comprising:

[0007] The slide rail has a T-shaped upper end and ball grooves on both sides.

[0008] A sliding sleeve is fitted onto a slide rail. Both sides of the sliding sleeve are provided with oil grooves. A glass plate is placed in the oil groove and sealed with glass glue. Multiple balls are movably mounted on the sliding sleeve in the oil groove. The balls roll in the ball groove. A sponge block is provided in the oil groove to abut against the balls.

[0009] Furthermore, the slide rail is provided with multiple screw holes running through its top and bottom, and the multiple screw holes are distributed in a linear array on the slide rail.

[0010] Furthermore, the upper end of the sliding sleeve is provided with a connecting block, which is installed on the sliding sleeve by bolts, and a connecting hole is provided through the connecting block.

[0011] Furthermore, an oil filling hole is provided through the glass plate, and a first sealing plug is spirally inserted into the oil filling hole.

[0012] Furthermore, the sliding sleeve is provided with an oil drain hole that communicates with the oil groove, and a second sealing plug is spirally installed inside the oil drain hole.

[0013] Furthermore, when the ball rolls in the ball groove, the sliding sleeve is positioned close to the slide rail but not against it.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention uses ball rolling instead of sliding friction, which greatly reduces wear and improves guiding accuracy and service life; the slide rail and slide sleeve are reasonably designed, and together with high-precision balls and a lubrication system, ensure smooth movement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an anti-derailment linear slide rail structure described in an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the sliding sleeve in an anti-derailment linear slide rail structure described in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the oil groove in an anti-derailment linear slide rail structure described in an embodiment of this utility model.

[0019] In the above attached figures: 1 slide rail, 2 screw hole, 3 ball groove, 4 connecting block, 5 sliding sleeve, 6 ball, 7 oil groove, 8 second sealing plug, 9 connecting hole, 10 first sealing plug, 11 glass plate, 12 oil drain hole, 13 oil filling hole, 14 sponge block. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-3 As shown, this utility model embodiment proposes an anti-derailment linear slide rail structure, comprising:

[0022] The slide rail 1 is made of high-strength alloy steel to ensure sufficient rigidity and load-bearing capacity. Multiple screw holes 2 are provided vertically through the slide rail 1, arranged in a linear array. The diameter of the screw holes 2 is set according to actual load-bearing requirements, generally ranging from 6-12 mm. The spacing between adjacent screw holes 2 is 50-100 mm to facilitate the secure installation of the slide rail 1 on the equipment foundation.

[0023] The upper end of the slide rail 1 is T-shaped, which not only provides stable guidance for the sliding sleeve 5 but also increases the bending strength of the slide rail 1 to a certain extent. Both sides of the slide rail 1 are provided with ball grooves 3. The cross-section of the ball groove 3 is semi-circular, and its radius is determined according to the diameter of the selected ball 6, generally 0.1-0.2 mm larger than the radius of the ball 6, to ensure that the ball 6 can roll smoothly within the ball groove 3 and reduce the wobble caused by gaps. The surface of the ball groove 3 is precision ground, with a surface roughness Ra≤0.4μm, to reduce the frictional resistance when the ball 6 rolls and improve motion accuracy.

[0024] The sliding sleeve 5 is fitted onto the slide rail 1 and is made of wear-resistant copper alloy or engineering plastic to reduce friction and wear between it and the slide rail 1. A connecting block 4 is located at the upper end of the sliding sleeve 5. The connecting block 4 is bolted to the sliding sleeve 5 using high-strength stainless steel bolts of M4-M8 specifications to ensure a secure and reliable connection between the connecting block 4 and the sliding sleeve 5. A connecting hole 9 is provided through the connecting block 4. The diameter of the connecting hole 9 is determined according to the actual dimensions of the connected components, generally 8-20mm, and is used to connect the sliding sleeve 5 to other moving parts to achieve linear motion transmission.

[0025] Both sides of the sliding sleeve 5 are provided with oil grooves 7. The oil grooves 7 are rectangular in shape, and their dimensions are determined according to the size of the sliding sleeve 5 and the distribution of the balls 6. The depth is generally 5-10 mm, and the width is 10-20 mm. A glass plate 11 is placed in the oil groove 7 and sealed with glass glue. The glass plate 11 is made of transparent tempered glass with a thickness of 2-5 mm, which facilitates observation of the lubricating oil level and quality in the oil groove 7. A filling hole 13 is provided through the glass plate 11. The diameter of the filling hole 13 is 3-6 mm. A first sealing plug 10 is spirally screwed into the filling hole 13. The first sealing plug 10 is made of rubber and has good sealing performance to prevent lubricating oil leakage.

[0026] By inserting a water pipe through the oil filling hole 13, the inside of the oil tank 7 can be flushed to remove impurities and dirt, thus keeping the lubrication system clean.

[0027] The sliding sleeve 5 has a through-hole 12 that communicates with the oil tank 7. The diameter of the through-hole 12 is 4-8mm. A second sealing plug 8 is spirally screwed inside the through-hole 12. The second sealing plug 8 is also made of rubber. When it is necessary to change the lubricating oil or clean the oil tank 7, the second sealing plug 8 is unscrewed, and the oil in the oil tank 7 and the wastewater generated during cleaning can be discharged through the through-hole 12.

[0028] The oil groove 7 is provided with a sponge block 14 that abuts against the ball 6. The sponge block 14 is made of high-density sponge, which has good oil absorption and oil release performance, and can continuously provide lubricating oil for the ball 6, ensuring that the ball 6 is always in a good lubricated state when rolling in the ball groove 3, reducing wear and improving the service life of the slide rail.

[0029] Multiple balls 6 are movably mounted on the sliding sleeve 5 within the oil groove 7. The balls 6 are made of high-precision steel balls, with a diameter determined according to design requirements, typically 5-15mm. The surface hardness of the balls 6 is HRC≥60 to ensure wear resistance and service life. The balls 6 roll within the ball groove 3. When the balls 6 are rolling within the ball groove 3, the sliding sleeve 5 is positioned close to the slide rail 1 but not against it, maintaining a gap of 0.05-0.2mm between them. This gap ensures smooth sliding of the sliding sleeve 5 on the slide rail 1 while preventing excessive gap from causing the sliding sleeve 5 to wobble and affecting motion accuracy.

[0030] During installation and commissioning, first place slide rail 1 on the equipment foundation and use a level to adjust its levelness, ensuring the horizontal error is within ±0.05mm / m. Then, use bolts to fix slide rail 1 to the equipment foundation through screw holes 2. The tightening torque of the bolts is determined according to the bolt specifications and equipment requirements, generally 10-50 N·m. When installing the sliding sleeve 5, slowly slide the sliding sleeve 5 onto one end of slide rail 1, ensuring that the balls 6 accurately enter the ball grooves 3. When installing the connecting block 4, use bolts to firmly connect the connecting block 4 to the sliding sleeve 5. Pay attention to the tightening sequence and torque of the bolts to avoid deformation of the sliding sleeve 5 due to uneven connection.

[0031] After installation, add an appropriate amount of lubricating oil to the oil tank 7. The viscosity of the lubricating oil is determined according to the working speed and load of the slide rail. Generally, a kinematic viscosity lubricating oil with a viscosity of 32-100 cSt is selected.

[0032] After adding lubricating oil, manually push the sliding sleeve 5 back and forth on the slide rail 1 several times to evenly distribute the lubricating oil on the surfaces of the balls 6 and ball grooves 3. Check whether the movement of the sliding sleeve 5 is smooth and whether there is any jamming, abnormal noise, or other abnormalities. If any abnormalities are found, adjust and troubleshoot them in a timely manner to ensure the normal operation of the slide rail structure.

[0033] Regularly check the lubricating oil level and quality in oil tank 7, generally every 500-1000 hours of operation. When the oil level is below 1 / 3 of the height of oil tank 7, add lubricating oil promptly; when the lubricating oil becomes darker in color, cloudy, or has an unusual odor, replace the lubricating oil immediately. Regularly clean impurities and dirt from oil tank 7, performing a cleaning every 2000-3000 hours of operation.

[0034] During cleaning, unscrew the second sealing plug 8 and drain the lubricating oil from the oil groove 7 through the oil drain hole 12. Then, insert a water pipe through the oil filling hole 13 to rinse the inside of the oil groove 7 until the drained water is clear. After cleaning, wait for the oil groove 7 to dry, then add an appropriate amount of lubricating oil. Regularly check the wear of the balls 6 and ball grooves 3 every 5,000-10,000 hours of operation. If scratches or cracks are found on the surface of the balls 6 or the surface of the ball grooves 3 is severely worn, the balls 6 should be replaced or the ball grooves 3 should be repaired in time to ensure the motion accuracy and service life of the slide rail.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A derailment-resistant linear slide rail structure, characterized in that, include: The slide rail (1) has a T-shaped upper end and ball grooves (3) on both sides of the slide rail (1). A sliding sleeve (5) is fitted onto a slide rail (1). Both sides of the sliding sleeve (5) are provided with oil grooves (7). A glass plate (11) is placed in the oil groove (7) and sealed with glass glue. Multiple balls (6) are movably arranged on the sliding sleeve (5) in the oil groove (7). The balls (6) roll in the ball groove (3). A sponge block (14) is provided in the oil groove (7) to abut against the balls (6).

2. The anti-derailment linear slide rail structure according to claim 1, characterized in that, in: The slide rail (1) is provided with multiple screw holes (2) running through it from top to bottom, and the multiple screw holes (2) are distributed in a linear array on the slide rail (1).

3. The anti-derailment linear slide rail structure according to claim 1, characterized in that, in: The upper end of the sliding sleeve (5) is provided with a connecting block (4), which is installed on the sliding sleeve (5) by bolts, and a connecting hole (9) is provided through the connecting block (4).

4. The anti-derailment linear slide rail structure according to claim 1, characterized in that, in: A filling hole (13) is provided through the glass plate (11), and a first sealing plug (10) is spirally inserted inside the filling hole (13).

5. The anti-derailment linear slide rail structure according to claim 1, characterized in that, in: The sliding sleeve (5) is provided with an oil drain hole (12) that communicates with the oil groove (7), and a second sealing plug (8) is spirally arranged inside the oil drain hole (12).

6. The anti-derailment linear slide rail structure according to claim 1, characterized in that, in: When the ball (6) rolls in the ball groove (3), the sliding sleeve (5) is positioned close to the slide rail (1) but not against it.

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