A high load-bearing roller linear guide pair

Abstract

The utility model relates to the technical field of linear guide pairs, specifically a high-load roller linear guide pair, including a guide rail, a slider is slidably connected to the guide rail, and the two side ends of the slider are respectively installed with a first protective block and a second protective block, and the first protective block and the second protective block are connected to the slider through a limit assembly and a positioning bolt. The linear guide pair provided in the device plays a protective role through the first protective block and the second protective block when the slider is hit during the smooth movement. The limit assembly is convenient for disassembly and assembly of the first protective block and the second protective block, and the lubricating oil injected by the oil inlet nozzle on the first protective block can prevent the phenomenon of unsmooth operation during operation. The retainer in the slider eliminates the friction between the steel balls, so that the steel balls can be arranged evenly at intervals for movement, and the setting of the arc-shaped protrusion further ensures the sliding stability of the entire linear guide pair, and prevents the phenomenon of falling off and sliding deviation.

Description

Technical Field

[0001] The utility model relates to the technical field of linear guide rail pairs, in particular to a high-load-bearing roller linear guide rail pair. Background Art

[0002] A conventional linear guide pair, such as a rolling linear guide pair disclosed in the utility model with application number CN201120285563.1, includes a guide rail and a slider. The slider is provided with a groove that matches the cross-sectional shape of the guide rail. The slider is connected to the guide rail through the groove and can move axially along the guide rail. A raceway is provided in the groove of the slider and at the connection with the guide rail. Balls are provided in the raceway. A return device and a return block are fixedly connected at both ends of the slider. A top retainer is fixedly connected at the connection between the top of the guide rail and the slider. Side retainers are fixedly connected at the connection between the two sides of the guide rail and the slider. A ball retaining chain is provided between the balls, and an oil cup is provided on the return block. The above technical solution reduces the wear rate of the balls and increases the service life of the balls and the product. However, it has high dust prevention requirements. In harsh production environments, its service life is not long. Dust can easily enter the raceway, causing wear of the balls. In addition, the traditional slider slides directly on the guide rail, and the slider is prone to skewness and loud noise during movement. When the two sides of the slider collide, it is easy to cause damage to the slider and the internal balls. A high-load-bearing roller linear guide pair is needed to solve this problem. Utility Model Content

[0003] The utility model aims to provide a high-load roller linear guide pair to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-load-bearing roller linear guide pair, comprising a guide rail, a slider being slidably connected to the guide rail, and a first protective block and a second protective block are respectively installed on both side ends of the slider, the first protective block and the second protective block are connected to the slider through a limit assembly and a positioning bolt, an oil inlet nozzle is provided on the first protective block, a retainer is installed in the slider, a steel ball is installed on the retainer, a fixing block is installed on the limit assembly, an inner cavity is installed in the fixing block, a buffer spring is installed in the inner cavity, a positioning rod is installed on the buffer spring, an adjusting rod is fixedly installed on the positioning rod, a slot is provided on the side end of the fixing block, the slot is slidably connected to the adjusting rod, positioning holes are provided between the first protective block and the second protective block, and the positioning holes are plugged into the positioning rod on the limit assembly.

[0005] As a preferred technical solution of the utility model, a thread groove is provided between the first protection block, the second protection block and the slider, and the thread groove is threadedly connected with a positioning bolt to connect the first protection block and the second protection block to the slider.

[0006] As a preferred technical solution of the utility model, arc-shaped protrusions are fixedly installed on the first protective block and the second protective block, and the arc-shaped protrusions are slidably connected to the U-shaped grooves at the side ends of the guide rails.

[0007] As a preferred technical solution of the utility model, sealing rings are installed between the first protection block, the second protection block and the guide rail, and the sealing rings are made of rubber material.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] (1) The utility model is a high-load roller linear guide pair. The linear guide pair arranged in the device can protect the slider through the first protective block and the second protective block when it is hit during the smooth movement of the slider. The limit assembly is convenient for disassembly and assembly of the first protective block and the second protective block. The lubricating oil injected by the oil inlet nozzle on the first protective block can prevent the operation from being unsmooth. The retainer in the slider eliminates the friction between the steel balls, so that the steel balls can be arranged evenly at intervals for movement. The setting of the arc-shaped protrusion further ensures the sliding stability of the entire linear guide pair and prevents the phenomenon of falling off and sliding deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a structural schematic diagram of a high-load-bearing roller linear guide pair according to an embodiment of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal structure of a high-load-bearing roller linear guide pair according to an embodiment of the utility model;

[0013] Figure 3 According to the utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0014] Reference numerals:

[0015] 1. Guide rail; 2. Slider; 3. First protective block; 4. Second protective block; 5. Arc-shaped protrusion; 6. Sealing ring; 7. Oil inlet nozzle; 8. Limit assembly; 9. Threaded groove; 10. Positioning bolt; 11. Retainer; 12. Steel ball; 13. Fixed block; 14. Inner cavity; 15. Buffer spring; 16. Positioning rod; 17. Slot; 18. Adjustment rod; 19. Positioning hole. DETAILED DESCRIPTION

[0016] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0017] Example 1

[0018] refer to Figure 1 to Figure 2 Embodiment 1 is described, comprising a guide rail 1, a slider 2 is slidably connected to the guide rail 1, a first protective block 3 and a second protective block 4 are respectively installed at both side ends of the slider 2, the first protective block 3 and the second protective block 4 are connected to the slider 2 through a limit assembly 8 and a positioning bolt 10, an oil inlet nozzle 7 is provided on the first protective block 3, a retainer 11 is installed in the slider 2, a steel ball 12 is installed on the retainer 11, an arc-shaped protrusion 5 is fixedly installed on the first protective block 3 and the second protective block 4, the arc-shaped protrusion 5 is slidably connected to the U-shaped groove at the side end of the guide rail 1, and a sealing ring 6 is installed between the first protective block 3 and the second protective block 4 and the guide rail 1, and the sealing ring 6 is made of rubber material;

[0019] In this embodiment, the retainer 11 provided in the slider 2 eliminates the friction between the steel balls 12, allowing the steel balls 12 to be evenly spaced and arranged for movement. The arc-shaped protrusions 5 are all fitted into the U-shaped grooves on both sides of the guide rail 1, ensuring the sliding stability of the entire linear guide pair and effectively preventing the phenomenon of falling off and sliding deviation.

[0020] Example 2

[0021] refer to Figure 3 Example 2 is described. This embodiment further describes Example 1, including a fixed block 13 installed on the limit assembly 8, an inner cavity 14 installed in the fixed block 13, a buffer spring 15 installed in the inner cavity 14, a positioning rod 16 installed on the buffer spring 15, an adjusting rod 18 fixedly installed on the positioning rod 16, a slot 17 is provided on the side end of the fixed block 13, the slot 17 is slidably connected to the adjusting rod 18, a positioning hole 19 is provided between the first protective block 3 and the second protective block 4, the positioning hole 19 is plugged with the positioning rod 16 on the limit assembly 8, a threaded groove 9 is provided between the first protective block 3, the second protective block 4 and the slider 2, and a positioning bolt 10 is threadedly connected on the threaded groove 9 to connect the first protective block 3 and the second protective block 4 to the slider 2;

[0022] In this embodiment, the first protective block 3 and the second protective block 4 are connected to both sides of the slider 2 through positioning bolts 10 and a limiting assembly 8, which facilitates the disassembly and assembly of the first protective block 3 and the second protective block 4. By pulling the adjusting rod 18 to lift the limiting rod upward, the limiting rod may be disengaged from the positioning hole, thereby realizing disassembly and assembly, and vice versa.

[0023] In specific applications, the guide rail 1 of the linear guide pair provided in the device is slidably connected through the slider 2, and the first protective block 3 and the second protective block 4 are respectively installed at both sides of the slider 2 to protect the slider 2. When the slider 2 is hit during smooth movement, the first protective block 3 and the second protective block 4 are used to protect it, and the first protective block 3 and the second protective block 4 are connected to both sides of the slider 2 through positioning bolts 10 and a limit assembly 8, which is convenient for disassembly and assembly of the first protective block 3 and the second protective block 4, and the lubricating oil injected by the oil inlet nozzle 7 on the first protective block 3 can enter the steel ball 1. 2, which has a lubricating effect and prevents the phenomenon of uneven operation during operation. The retainer 11 arranged in the slider 2 eliminates the friction between the steel balls 12, so that the steel balls 12 can be evenly spaced to move. In order to ensure that the slider 2 fits the guide rail 1, the arc-shaped protrusions 5 on the first protective block 3 and the second protective block 4 are both fitted to the U-shaped grooves on both sides of the guide rail 1, ensuring the sliding stability of the entire linear guide pair, effectively preventing the phenomenon of falling off and sliding deviation, obtaining high-precision, stable and smooth movement, improving the service life, and ensuring the work efficiency in production.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-load roller linear guide pair, characterized in that: The invention comprises a guide rail (1), a slider (2) is slidably connected to the guide rail (1), a first protective block (3) and a second protective block (4) are respectively installed on both sides of the slider (2), the first protective block (3) and the second protective block (4) are connected to the slider (2) through a limit assembly (8) and a positioning bolt (10), an oil inlet nozzle (7) is provided on the first protective block (3), a retainer (11) is installed in the slider (2), a steel ball (12) is installed on the retainer (11), a fixing block (13) is installed on the limit assembly (8), and the The fixed block (13) is provided with an inner cavity (14), a buffer spring (15) is provided in the inner cavity (14), a positioning rod (16) is provided on the buffer spring (15), an adjusting rod (18) is fixedly provided on the positioning rod (16), a slot (17) is provided at a side end of the fixed block (13), the slot (17) is slidably connected to the adjusting rod (18), a positioning hole (19) is provided between the first protective block (3) and the second protective block (4), and the positioning hole (19) is plugged into the positioning rod (16) on the limiting assembly (8).

2. A high load bearing roller linear guide pair according to claim 1, characterized in that: A threaded groove (9) is provided between the first protection block (3) and the second protection block (4) and the slider (2); a positioning bolt (10) is threadedly connected to the threaded groove (9) so that the first protection block (3) and the second protection block (4) are connected to the slider (2).

3. A high load bearing roller linear guide pair according to claim 1, characterized in that: The first protection block (3) and the second protection block (4) are both fixedly mounted with an arc-shaped protrusion (5), and the arc-shaped protrusion (5) is slidably connected to the U-shaped groove at the side end of the guide rail (1).

4. A high load bearing roller linear guide pair according to claim 1, characterized in that: A sealing ring (6) is installed between the first protection block (3), the second protection block (4) and the guide rail (1), and the sealing ring (6) is made of rubber material.

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