Rolling linear guide rail pair

By designing a insert plate structure, a limit plate, and a clamping plate structure, the problem of needing to replace the entire slider after the rolling elements of the rolling linear guide pair wear in the existing technology is solved. This achieves rapid replacement of the balls and stability of the slider, reducing maintenance costs and improving replacement efficiency.

CN223825453UActive Publication Date: 2026-01-23R&F (JIANGSU) TRANSMISSION MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520806216.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-26
Publication Date
2026-01-23
Estimated Expiration
2035-04-26

AI Technical Summary

Technical Problem

Existing rolling linear guide pairs require the entire slider to be replaced after the rolling elements wear out, which is complex and costly to maintain.

Method used

A combination of insert plate structure, limiting plate and clamping plate structure is designed to allow for the detachable replacement of ball bearings. The ball bearings can be quickly replaced by bolt connection, and the limiting plate and clamping plate structure ensure the stability of the insert plate structure.

Benefits of technology

It enables quick replacement of ball bearings, reduces maintenance costs, improves replacement efficiency, and ensures the sliding stability and ease of disassembly of the slider.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223825453U_ABST
    Figure CN223825453U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of guide rail pairs, and provides a rolling linear guide rail pair which comprises a guide rail body and a sliding block sliding along the guide rail body, raceways are symmetrically formed in the two sides of the guide rail body, containing grooves are symmetrically formed in the two sides of the sliding block, an insertion plate structure is inserted into each containing groove, and the insertion plate structures are connected with the guide rail body. Balls are arranged on the side, facing the rolling way, of the inserting plate structure. The ball bearing overcomes the defects in the prior art, is reasonable in design and compact in structure, is detachably connected with the sliding block through the insertion plate structure, can quickly replace the ball after the ball is abraded, does not need to replace the whole sliding block, reduces the maintenance cost, and improves the replacement efficiency. Through cooperative use of the limiting plate and the clamping plate structure, the stability of the insertion plate structure in the sliding block is ensured, looseness in the movement process is avoided, the sliding stability of the sliding block is guaranteed, the clamping plate structure can be used as a handle to pull the insertion plate structure when the insertion plate structure is disassembled, and the disassembly convenience of the insertion plate structure is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of guide rail pair technology, specifically to a rolling linear guide rail pair. Background Technology

[0002] A rolling linear guide pair is a precision motion component that uses rolling friction instead of sliding friction. It relies on the continuous circulation of rolling elements along a preset trajectory to support and transmit loads while ensuring high guiding accuracy of linear motion. However, after prolonged operation, the surfaces of the rolling elements inevitably wear down. This necessitates replacing the worn rolling elements to maintain the smoothness and accuracy of the slider's movement on the guide rail. Currently, the common practice is to replace the entire slider once the rolling elements wear out. This approach is not only complex and cumbersome but also significantly increases maintenance costs. Therefore, we propose a rolling linear guide pair. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, this utility model provides a rolling linear guide pair to solve the above-mentioned problems existing in the prior art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a rolling linear guide pair, including a guide body and a slider that slides along the guide body. The guide body has symmetrical raceways on both sides, and the slider has symmetrical receiving grooves on both sides. Each receiving groove has an insert plate structure inserted into it, and the insert plate structure has a ball bearing on the side facing the raceway.

[0007] Furthermore, the insert structure includes a first insert plate and a second insert plate, the first insert plate and the second insert plate are connected by bolts, and a plurality of rotatable balls are provided between the two, the balls penetrating the second insert plate on the side facing the raceway.

[0008] Furthermore, both sides of the slider are rotatably connected to limiting plates, which are positioned above the receiving groove and extend to the bottom of the top of the receiving groove, so that one end of the limiting plate can be rotated to fit against the outer wall of the insert structure.

[0009] Furthermore, the outer wall of the insert plate structure is provided with a locking plate structure that cooperates with the limiting plate to limit the position of the limiting plate.

[0010] Furthermore, the overall structure of the card plate is L-shaped to limit the sidewalls and outer wall of the limiting plate.

[0011] Furthermore, the insert plate structure has a slot structure on the side facing the slider sidewall to cooperate with the card plate structure. The slot structure includes a first slot and a second slot opened in the first slot. The card plate structure includes an L-shaped first card plate and a second card plate disposed on the first card plate. The second card plate is disposed corresponding to the second slot.

[0012] (III) Beneficial Effects

[0013] This utility model embodiment provides a rolling linear guide pair. It has the following beneficial effects:

[0014] 1. The slide block is detachably connected to the insert plate structure, allowing for quick replacement of worn balls without replacing the entire slide block, thus reducing maintenance costs and improving replacement efficiency.

[0015] 2. The use of the limiting plate and the clamping plate structure together ensures the stability of the insert plate structure within the slider, avoids loosening during movement, and guarantees the sliding stability of the slider. In addition, the clamping plate structure can also be used as a handle to pull the insert plate structure when disassembling it, which greatly improves the ease of disassembly of the insert plate structure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the separation of the guide rail body and the slider structure of this utility model;

[0018] Figure 3 This is an exploded view of the slider structure of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the limiting plate structure of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the card plate structure of this utility model.

[0021] In the diagram: 1. Guide rail body; 11. Raceway; 2. Slider; 21. Receiving groove; 22. Limiting plate; 23. First slot; 24. Second slot; 31. First insert plate; 32. Second insert plate; 321. First clamping plate; 322. Second clamping plate; 4. Ball bearing. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] See attached document Figures 1-5 A rolling linear guide pair includes a long, narrow guide body 1 and a slider 2 that is mounted on the guide body 1 and slides along the guide body 1. The guide body 1 has symmetrically arranged raceways 11 on both sides, each raceway 11 having a semi-circular vertical cross-section. The slider 2 has symmetrically arranged receiving grooves 21 on both sides, each receiving groove 21 containing an insert plate structure. A ball bearing 4 is positioned on the side of the insert plate structure facing the raceway 11. When the insert plate structure is inserted into the slider 2, the ball bearing 4 is correspondingly positioned within the raceway 11, ensuring the smooth operation of the slider 2 on the guide body 1. When the ball bearing 4 is worn and needs replacement, the insert plate structure on the slider 2 can be pulled out to quickly replace the ball bearing 4. This method offers high replacement efficiency and eliminates the need to replace the entire slider 2, significantly reducing equipment replacement costs.

[0024] In this embodiment, the insert plate structure includes a first insert plate 31 and a second insert plate 32. The first insert plate 31 and the second insert plate 32 are connected by bolts, and a plurality of rotatable balls 4 are provided between them. The balls 4 roll and rub against the raceway 11, which can effectively reduce frictional resistance and improve sliding efficiency. The balls 4 penetrate the second insert plate 32 on the side facing the raceway 11 and enter the interior of the raceway 11. When replacing the balls 4, the bolts are turned to separate the first insert plate 31 and the second insert plate 32. Then the balls 4 are removed and replaced with new balls 4. After the balls 4 are worn, only new balls 4 need to be replaced, which further saves the replacement cost of the equipment.

[0025] In this embodiment, both sides of the slider 2 are rotatably connected to a limiting plate 22. The limiting plate 22 is positioned above the receiving groove 21, and its bottom extends below the top of the receiving groove 21, so that one end of the limiting plate 22 can be rotated to fit against the outer wall of the insert structure. When the insert structure is inserted into the receiving groove 21 of the slider 2, the limiting plate 22 is rotated so that the limiting plate 22 abuts against the outer surface of the insert structure, which can ensure the stability of the insert structure inserted into the receiving groove 21 and prevent the insertion structure from loosening and affecting the sliding of the slider 2 when the slider 2 moves along the guide rail body 1.

[0026] In this embodiment, the outer wall of the insert plate structure is provided with a clamping plate structure that cooperates with the limiting plate 22 to limit the limiting plate 22 and prevent the limiting plate 22 from shaking arbitrarily. The clamping plate structure is an L-shaped structure to limit the side wall and outer wall of the limiting plate 22. When removing the insert plate structure, the clamping plate structure can also be used as a handle to facilitate quick removal of the insert plate structure. When the limiting plate 22 limits the outer surface of the insert plate structure, it rotates to the inner side of the L-shaped structure of the clamping plate structure. The clamping plate structure limits the side wall and outer wall of the limiting plate 22 to prevent the limiting plate 22 from shaking arbitrarily and affecting the stability of the connection between the insert plate structure and the slider 2.

[0027] In this embodiment, the insert plate structure has a slot structure on the side facing the slider 2 sidewall to cooperate with the card plate structure. The slot structure includes a first slot 23 and a second slot 24 opened in the first slot 23. The card plate structure includes an L-shaped first card plate 321 and a second card plate 322 disposed on the first card plate 321. The second card plate 322 is disposed corresponding to the second slot 24. When the limiting plate 22 is rotated to limit the insert plate structure, the limiting plate 22 is rotated into the card plate structure. The first card plate 321 is elastic, and one side of its outer wall will move into the first slot 23. The second card plate 322 moves into the second slot 24, so that the limiting plate 22 is stably fixed in the card plate structure, avoiding the limiting plate 22 from shaking randomly.

[0028] The first slot 23 penetrates the side arm of the limiting plate 22 on the side facing the card plate structure, and the bottom wall of the first slot 23 is provided with an inclined surface on the side facing the card plate structure so that the second card plate 322 can slide into the first slot 23.

[0029] Furthermore, the two long sides of the second card plate 322 opposite to the first card plate 321 are provided with inclined surfaces to facilitate the sliding of the second card plate 322 into the second card slot 24.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rolling linear guide pair, comprising a guide body (1) and a slider (2) sliding along the guide body (1), wherein the guide body (1) has symmetrically provided raceways (11) on both sides, characterized in that: The slider (2) has symmetrically provided receiving grooves (21) on both sides. Each receiving groove (21) is equipped with a plate structure, and the plate structure is provided with a ball (4) on the side facing the raceway (11).

2. A rolling linear guide pair as described in claim 1, characterized in that: The insert plate structure includes a first insert plate (31) and a second insert plate (32). The first insert plate (31) and the second insert plate (32) are connected by bolts, and a plurality of rotatable balls (4) are provided between them. The balls (4) penetrate the second insert plate (32) on the side facing the raceway (11).

3. A rolling linear guide pair as described in claim 1 or 2, characterized in that: Both sides of the slider (2) are rotatably connected to a limiting plate (22). The limiting plate (22) is located above the receiving groove (21) and its bottom extends below the top of the receiving groove (21) so that one end of the limiting plate (22) can be rotated to fit against the outer wall of the insert structure.

4. A rolling linear guide pair as described in claim 3, characterized in that: The outer wall of the insert structure is provided with a clamping plate structure that cooperates with the limiting plate (22) to limit the limiting plate (22).

5. A rolling linear guide pair as described in claim 4, characterized in that: The overall structure of the card plate is L-shaped to limit the side wall and outer wall of the limiting plate (22).

6. A rolling linear guide pair as described in claim 5, characterized in that: The insert structure has a slot structure on one side facing the sidewall of the slider (2) to cooperate with the card plate structure. The slot structure includes a first slot (23) and a second slot (24) opened in the first slot (23). The card plate structure includes an L-shaped first card plate (321) and a second card plate (322) disposed on the first card plate (321). The second card plate (322) is disposed corresponding to the second slot (24).