Novel linear guide rail device

By designing a linear guide device with grooves and wear-resistant plates, the problems of inconvenient self-lubrication and the ingress of small particles are solved, achieving high-precision motion and long service life without maintenance, suitable for high-load environments.

CN224161961UActive Publication Date: 2026-04-24SANMEISI PRECISION IND (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANMEISI PRECISION IND (JIANGSU) CO LTD
Filing Date
2025-06-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing linear guides are inconvenient to self-lubricate during operation, requiring frequent lubrication, which affects their service life. Furthermore, tiny particles can easily enter the gap between the slider and the guide rail, causing jamming.

Method used

A novel linear guide device was designed, which adopts a groove and wear-resistant plate structure. The slider replaces the ball bearings through the reciprocating motion in the groove. Wear-resistant plates are provided on the outer surface of the slider. The wear-resistant plates are made of nano-ceramic or polyethylene material and are installed by snap-fit. The groove and slider form a Y-shaped structure. The guide rail is hardened to improve its hardness.

Benefits of technology

It achieves high-precision reciprocating motion without maintenance, and the wear-resistant plates are replaceable to prevent the entry of external debris, extend service life, and avoid jamming.

✦ Generated by Eureka AI based on patent content.

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Abstract

A novel linear guide rail device is characterized in that a linear guide rail, a sliding block and a wear-resisting piece are included, the two axial sides of the linear guide rail are each provided with a set of sliding grooves, an opening is formed in the bottom of the sliding block, the two sides of the opening are each provided with a set of sliding faces, and each sliding groove is composed of a row of square grooves, a row of upper arc grooves and a row of lower arc grooves; the linear guide rail device provided by the utility model is not provided with a ball design, is simple to assemble, does not cause blockage when external sundries enter the linear guide rail device, does not influence the operation of the linear guide rail, is free from maintenance, is convenient to operate, and is suitable for large-scale popularization and application. The sliding block reciprocates back and forth in the sliding groove formed in the linear guide rail through the sliding block face, the abrasion-resistant piece is assembled outside the sliding block face which completes reciprocating motion and slides away, the abrasion-resistant piece is assembled on the sliding block in a clamping mode, the abrasion-resistant piece can be replaced after long-time use and abrasion, and simplicity and convenience are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of linear guide technology, and in particular to a novel linear guide device. Background Technology

[0002] Linear guides, also known as linear rails, slide rails, or linear guideways, are used in linear reciprocating motion applications. They can withstand a certain amount of torque and achieve high-precision linear motion under high loads. The function of linear guides is to support and guide moving parts, enabling them to perform reciprocating linear motion in a given direction.

[0003] Currently available linear guides are inconvenient to self-lubricate during operation. Prolonged operation necessitates the application of lubricating oil to the outer wall of the device, wasting considerable time and effort. This also hinders device protection, reduces lifespan, and can easily lead to property damage. Furthermore, the gap between the slider and the guide rail allows small particles to easily enter the grooves on both sides of the guide rail when the slider is not covering it. When the slider covers the guide rail again during operation, these particles can enter the ball grooves, potentially causing jamming of the rolling elements between the slider and the guide rail. To address these issues, we propose a novel linear guide device based on existing linear guide technology to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of inconvenient self-lubrication of existing linear guides on the market. Prolonged operation requires lubrication of the outer wall of the device, wasting considerable time and effort, hindering protection, reducing lifespan, and potentially causing property damage. Furthermore, the gap between the slider and the guide rail in the linear guide allows small particles to easily enter the grooves on both sides of the guide rail when the slider is covering it. When the slider covers the guide rail again, these particles can enter the ball grooves, easily causing jamming of the rolling elements between the slider and the guide rail. Therefore, a novel linear guide device is needed to solve these technical problems.

[0005] A novel linear guide device is characterized by comprising a linear guide, a slider, and a wear-resistant plate. The slider is slidably assembled on the linear guide. A set of sliding grooves is provided on both axial sides of the linear guide. Each sliding groove consists of a row of square grooves, a row of upper arc grooves, and a row of lower arc grooves. The upper arc grooves are located above the square grooves, and the lower arc grooves are located below the square grooves. The upper arc grooves, lower arc grooves, and square grooves form a Y-shaped structure. The bottom of the slider has an opening, and a wear-resistant plate is provided on both sides of the opening. A set of sliding surfaces, the sliding surface being composed of a row of square protrusions, a row of upper arc protrusions, and a row of lower arc protrusions. The upper arc protrusions are located above the square protrusions, and the lower arc protrusions are located below the square protrusions. The upper arc groove matches the upper arc protrusion, the lower arc protrusion matches the lower arc groove, and the square groove matches the directional protrusion. The upper arc protrusion, lower arc protrusion, and square protrusion form a Y-shaped structure. A wear-resistant plate is provided on the outer side of the sliding surface, the shape of which is the same as and matches the sliding surface.

[0006] Furthermore, the wear-resistant sheet is made of nano-ceramic material or polyethylene wear-resistant plastic, and the wear-resistant sheet is assembled on the slider by snap-fit.

[0007] Furthermore, the groove extends through the entire axial direction of the linear guide.

[0008] Furthermore, the sliding surface extends throughout the axial direction of the entire slider.

[0009] Furthermore, the linear guide and slider are both integral structures.

[0010] Furthermore, the linear guide rail is quenched using a weakly acidic inorganic salt and oil cleaning agent, and the hardness of the linear guide rail is HRC: 58-62.

[0011] Compared with the prior art, the advantages of this utility model include: the linear guide device provided by this utility model does not have a ball bearing design, is simple to assemble, and will not cause jamming if foreign objects enter the linear guide device, thus not affecting the operation of the linear guide. It is maintenance-free, and the slider moves back and forth in the groove set in the linear guide through the slider surface to complete the reciprocating motion. Wear-resistant plates are assembled on the outside of the slid-out slider surface. The wear-resistant plates are assembled on the slider by snap-fit. After long-term use and wear, the wear-resistant plates can be replaced, which is simple and convenient. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1 This is a structural front view of a novel linear guide device provided in this embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the middle guide rail of a novel linear guide rail device provided in this embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the slider in a novel linear guide device provided in this embodiment of the present invention;

[0016] Figure 4 This is a left structural view of a novel linear guide device provided in this embodiment of the present invention;

[0017] In the attached diagram: 1. Linear guide rail; 2. Slider; 3. Wear-resistant plate; 101. Slide groove; 1011. Square groove; 1012. Upper arc groove; 1013. Lower arc groove; 201. Opening; 2011. Sliding surface; 2012. Square protrusion; 2013. Upper arc protrusion; 2014. Lower arc protrusion. Detailed Implementation

[0018] In view of the shortcomings of the prior art, this invention, through long-term research and extensive practice, has yielded the technical solution of this utility model. The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments.

[0019] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a structural front view of a novel linear guide device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the middle guide rail of a novel linear guide rail device provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of the slider in a novel linear guide device provided in this embodiment of the present invention; Figure 4This is a left view of the structure of a novel linear guide device provided in this embodiment of the present invention. The novel linear guide device is characterized by comprising a linear guide 1, a slider 2, and a wear-resistant plate 3. The slider 2 is slidably assembled on the linear guide 1. A set of sliding grooves 101 are provided on both axial sides of the linear guide 1. The sliding grooves 101 penetrate the entire axial direction of the linear guide 1. Each sliding groove 101 consists of a row of square grooves 1011, a row of upper arc grooves 1012, and a row of lower arc grooves 1013. The upper arc grooves 1012 are located above the square grooves 1011. The lower arc groove 1013 is located below the square groove 1011. The upper arc groove 1012, the lower arc groove 1013, and the square groove 1011 form a Y-shaped structure. The bottom of the slider 2 is provided with an opening 201. A set of sliding surfaces 2011 is provided on both sides of the opening 201. The sliding surfaces 2011 penetrate the entire axial direction of the slider 2. The sliding surfaces 2011 are composed of a row of square protrusions 2012, a row of upper arc protrusions 2013, and a row of lower arc protrusions 2014. The upper arc protrusions 2013 are located above the square protrusions 2012, and the lower arc protrusions 2014 are located above the square protrusions 2012. 2013 is located below the square protrusion 2012. The upper arcuate groove 1012 matches the upper arcuate protrusion 2013, the lower arcuate protrusion 2013 matches the lower arcuate groove 1013, and the square groove 1011 matches the directional protrusion 2012. The upper arcuate protrusion 2013, the lower arcuate protrusion 2014, and the square protrusion 2012 form a Y-shaped structure. The slider 2 is assembled in the square groove 1011 through the square protrusion 2012, the upper arcuate protrusion 2013 is assembled in the upper arcuate groove 1012, and the lower arcuate protrusion 2014 is assembled in the lower arcuate groove. The slider is slidably assembled on the linear guide rail. The square protrusion 2012, the upper arc protrusion 2013 and the lower arc protrusion 2014 slide back and forth in the square groove 1011, the upper arc groove 1012 and the lower arc groove 1013 respectively to complete the reciprocating motion of the slider on the linear guide rail, thereby driving the load to complete the reciprocating motion. The slider moves back and forth in the groove of the linear guide rail through the sliding surface set by the slider, which replaces the ball setting of the existing linear guide rail. The whole device is simple and convenient to assemble, requires no maintenance, and can still accurately complete the reciprocating motion in dusty environments without jamming.

[0020] The outer side of the sliding surface 2011 is provided with a wear-resistant plate 3. The wear-resistant plate 3 is made of nano-ceramic material or polyethylene wear-resistant plastic. The wear-resistant plate made of nano-ceramic material or polyethylene wear-resistant plastic has high wear resistance and long service life. The shape of the wear-resistant plate 3 is the same as that of the sliding surface 2011 and they match each other. The wear-resistant plate is assembled on the slider 2 by snap-fit, which makes installation and disassembly convenient.

[0021] Preferably, the linear guide 1 is quenched using a weakly acidic inorganic salt and oil cleaning agent, and the hardness of the linear guide is HRC: 58-62. After surface treatment, the linear guide has high strength, enhanced wear resistance, and extended service life.

[0022] This utility model provides a novel linear guide device. It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, intended to enable those skilled in the art to understand its content and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. Any simple modifications and substitutions made using the content of this utility model are included within the scope of protection of this utility model.

Claims

1. A novel linear guide device, characterized in that: The system includes a linear guide rail, a slider, and wear-resistant plates. The slider is slidably assembled on the linear guide rail. The linear guide rail has a set of grooves on both axial sides. Each groove consists of a row of square grooves, a row of upper arc grooves, and a row of lower arc grooves. The upper arc grooves are located above the square grooves, and the lower arc grooves are located below the square grooves. The upper arc grooves, lower arc grooves, and square grooves form a Y-shaped structure. The bottom of the slider has an opening, and both sides of the opening have a set of sliding surfaces. The surface is composed of a row of square protrusions, a row of upper arc protrusions, and a row of lower arc protrusions. The upper arc protrusions are located above the square protrusions, and the lower arc protrusions are located below the square protrusions. The upper arc groove matches the upper arc protrusion, the lower arc protrusion matches the lower arc groove, and the square groove matches the directional protrusion. The upper arc protrusion, lower arc protrusion, and square protrusion form a Y-shaped structure. A wear-resistant plate is provided on the outer side of the sliding surface. The shape of the wear-resistant plate is the same as that of the sliding surface and they match each other.

2. The novel linear guide device according to claim 1, characterized in that: The wear-resistant sheet is made of nano-ceramic material or polyethylene wear-resistant plastic, and is assembled on the slider by snap-fit.

3. The novel linear guide device according to claim 1, characterized in that: The groove runs through the entire axial direction of the linear guide.

4. The novel linear guide device according to claim 1, characterized in that: The sliding surface extends through the entire axial direction of the slider.

5. A novel linear guide device according to claim 1, characterized in that: The linear guide and slider are both integral structures.

6. A novel linear guide device according to claim 1, characterized in that: The linear guide rail is quenched using a weakly acidic inorganic salt and oil cleaning agent, and the hardness of the linear guide rail is HRC: 58-62.