A wear-resistant durable linear guide rail

By using the arc-shaped contact between the circular cross-section track and the groove, along with the triangular support structure design, the problem of easy wear in traditional linear guides is solved, thus improving durability and reliability.

CN224497110UActive Publication Date: 2026-07-14ZHEJIANG PENGYIN TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG PENGYIN TECH DEV CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional linear guides are prone to localized wear during long-term high-load operation, leading to a shortened service life and increased equipment maintenance costs.

Method used

The design incorporates a circular cross-section track and an arc-shaped contact groove, combined with a triangular support structure and a dual force transmission method to distribute the load, reduce the pressure in the contact area, and enhance wear resistance.

Benefits of technology

It significantly extends the service life of the guide rail, reduces production, processing, and maintenance costs, and improves assembly efficiency and equipment reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of wear-resistant durable linear guide rail, the wear-resistant durable linear guide rail includes guide rail pedestal and sliding block, the sliding block is slidably installed on the guide rail pedestal, the guide rail pedestal includes a straight track, the cross section of the straight track is circular, the bottom of the sliding block is provided with a sliding slot matched with the profile of the straight track, and the straight track is installed in the sliding slot.The wear-resistant durable linear guide rail provided by the utility model, the contact of circular cross section track and sliding slot is arc contact, compared with the surface contact or line contact of traditional rectangular cross section track, arc contact can effectively disperse load, reduce the pressure of track and sliding slot contact area, reduce wear amount, significantly prolong the service life of guide rail, reduce equipment maintenance frequency and cost.
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Description

Technical Field

[0001] This utility model belongs to the field of linear guide technology, specifically relating to a wear-resistant and durable linear guide. Background Technology

[0002] In fields such as machinery manufacturing, automation equipment, and precision instruments, linear guides are key transmission components that enable linear reciprocating motion of parts. Their operational stability, wear resistance, and service life directly affect the working accuracy and reliability of the entire equipment.

[0003] Traditional rectangular cross-section rails and chutes often have surface or line contact, resulting in uneven contact area distribution. During long-term high-load operation, local areas of the rail and chutes are prone to generating large pressure, which accelerates wear and shortens the overall service life of the guide rail, increasing equipment maintenance costs and downtime. Utility Model Content

[0004] The main purpose of this invention is to provide a wear-resistant and durable linear guide rail, which improves the wear resistance of the linear guide rail, thereby slowing down the wear rate and extending the service life of the linear guide rail.

[0005] To achieve the above objectives, this utility model provides a wear-resistant and durable linear guide rail, which includes a guide rail base and a sliding block. The sliding block is slidably mounted on the guide rail base. The guide rail base includes a linear track with a circular cross-section. The bottom of the sliding block is provided with a groove that matches the contour of the linear track, and the linear track is installed in the groove.

[0006] The wear-resistant and durable linear guide provided by this utility model features an arc-shaped contact between the circular cross-section track and the slide groove. Compared to the surface or line contact of traditional rectangular cross-section tracks, the arc-shaped contact effectively distributes the load, reduces the pressure in the contact area between the track and the slide groove, reduces wear, significantly extends the service life of the guide rail, and lowers the frequency and cost of equipment maintenance. Furthermore, the circular cross-section track is easier to manufacture than complex cross-section tracks, and the fit accuracy between the slide groove and the circular track is easier to control, reducing the production and processing costs of the guide rail. Simultaneously, the assembly process of the circular track and the slide groove is simpler, facilitating subsequent disassembly and maintenance, and improving the assembly efficiency of the guide rail.

[0007] In one possible implementation, the guide rail base includes a base plate with a triangular support structure on the base plate, and the linear rail is positioned above the triangular support structure. The triangular support structure can evenly distribute the load borne by the linear rail to the base plate, avoiding load concentration in localized areas of the base plate, reducing stress concentration, lowering the risk of damage to the base plate due to long-term stress, and further extending the service life of the guide rail base.

[0008] In one possible implementation, the sides of the groove are the side plates of the sliding block, and the bottom of the side plates is attached to the side wall of the triangular support structure. During operation, the load borne by the sliding block is partially transferred to the circular track through the groove, and partially transferred to the triangular support structure through the side plates. This dual force transmission method effectively disperses the load on the sliding block, reduces the stress on the track and groove, lowers the wear rate of the track and groove, and further improves the wear resistance and service life of the guide rail.

[0009] In one possible implementation, the bottom of the triangular support structure is higher than the bottom of the base plate. The space below the triangular support structure can form an air circulation channel, which is beneficial for the dissipation of heat generated by the guide rail during operation.

[0010] In one possible implementation, the bottom of the triangular support structure is provided with outwardly protruding limiting plates on both sides, and the bottom of the side plate of the sliding block is provided on the upper surface of the limiting plates. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a wear-resistant and durable linear guide structure provided by this utility model. Detailed Implementation

[0012] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0013] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0014] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0015] See attached diagram. Figure 1 , Figure 1 This is a schematic diagram of a wear-resistant and durable linear guide structure provided by this utility model, as shown below. Figure 1As shown, the wear-resistant and durable linear guide provided by this utility model includes a guide base 1 and a sliding block 2. The sliding block 2 is slidably mounted on the guide base 1. The guide base 1 includes a linear track 3 with a circular cross-section. The bottom of the sliding block 2 is provided with a groove 4 that matches the contour of the linear track 3, and the linear track 3 is installed in the groove 4.

[0016] The wear-resistant and durable linear guide provided by this utility model features an arc-shaped contact between the circular cross-section track and the groove 4. Compared to the surface or line contact of traditional rectangular cross-section tracks, the arc-shaped contact effectively disperses the load, reduces the pressure in the contact area between the track and the groove 4, reduces wear, significantly extends the service life of the guide, and lowers the frequency and cost of equipment maintenance. Furthermore, the circular cross-section track is easier to manufacture than complex cross-section tracks, and the fit accuracy between the groove 4 and the circular track is easier to control, reducing the production and processing costs of the guide. Simultaneously, the assembly process of the circular track and the groove 4 is simpler, facilitating subsequent disassembly and maintenance, and improving the assembly efficiency of the guide.

[0017] In one possible implementation, the guide rail base 1 includes a base plate 5, on which a triangular support structure 6 is provided, and the linear track 3 is positioned above the triangular support structure 6. The triangular support structure 6 can evenly distribute the load borne by the linear track 3 to the base plate 5, avoiding load concentration in local areas of the base plate 5, reducing stress concentration in the base plate 5, lowering the risk of damage to the base plate 5 due to long-term stress, and further extending the service life of the guide rail base 1.

[0018] In one possible implementation, the slide groove 4 has side plates 7 on both sides of the sliding block 2, and the bottom of the side plates 7 is attached to the side wall of the triangular support structure 6. During operation, the load borne by the sliding block 2 is partially transferred to the circular track through the slide groove 4, and partially transferred to the triangular support structure 6 through the side plates 7. This dual force transmission method effectively disperses the load on the sliding block 2, reduces the stress on the track and slide groove 4, lowers the wear rate of the track and slide groove 4, and further improves the wear resistance and service life of the guide rail.

[0019] In one possible implementation, the bottom of the triangular support structure 6 is higher than the bottom of the base plate 5. The space below the triangular support structure 6 can form an air circulation channel, which is beneficial for the dissipation of heat generated by the guide rail during operation.

[0020] In one possible implementation, the bottom of the triangular support structure 6 is provided with outwardly protruding limiting plates 8 on both sides, and the bottom of the side plate 7 of the sliding block 2 is provided on the upper surface of the limiting plates 8.

[0021] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant and durable linear guide rail, characterized in that, The device includes a guide rail base and a sliding block. The sliding block is slidably mounted on the guide rail base. The guide rail base includes a linear track with a circular cross-section. The bottom of the sliding block is provided with a groove that matches the contour of the linear track, and the linear track is installed in the groove.

2. The wear-resistant and durable linear guide rail according to claim 1, characterized in that, The guide rail base includes a base plate, on which a triangular support structure is provided, and the linear rail is positioned above the triangular support structure.

3. The wear-resistant and durable linear guide rail according to claim 2, characterized in that, The two sides of the groove are the side plates of the sliding block, and the bottom of the side plates are attached to the side wall of the triangular support structure.

4. The wear-resistant and durable linear guide rail according to claim 3, characterized in that, The bottom of the triangular support structure is higher than the bottom of the base plate.

5. The wear-resistant and durable linear guide rail according to claim 4, characterized in that, The bottom of the triangular support structure is provided with outwardly protruding limiting plates on both sides, and the bottom of the side plate of the sliding block is provided on the upper surface of the limiting plates.