A telescopic fork guide assembly with automatic lubrication function

By introducing an automatic lubrication system and guide components into the guide rail assembly, the wear problem of the guide rail assembly is solved, achieving self-lubrication and stable movement, extending service life and improving positioning accuracy and stability.

CN224430099UActive Publication Date: 2026-06-30TAICANG AILARD LOGISTICS EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAICANG AILARD LOGISTICS EQUIP CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing guide rail assembly lacks an automatic lubrication function, which leads to wear and tear from long-term reciprocating motion, unstable operation, and shortened service life.

Method used

A telescopic fork guide rail assembly with automatic lubrication function was designed, including a lubricating oil storage chamber, nitrile rubber, PTFE coating, micro gear pump, oil extraction pipe, oil delivery pipe, stainless steel micro-orifice nozzle, oil replenishment port, sealing plug and polyurethane scraper. The micro gear pump draws lubricating oil and atomizes it onto the guide rail surface. Combined with the limiting strip, ball groove and guide rail movable seat of the guide assembly, self-lubrication and stable movement are achieved.

Benefits of technology

Reduce friction between the guide rail and the slider to extend service life, improve positioning accuracy and stability, reduce wear, and ensure operational stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a telescopic fork guide rail assembly with automatic lubrication function, relating to the field of fork guide rail technology. It includes a guide rail main frame and a lubrication assembly. The guide rail main frame is an integrated structure, with a protective box installed on the left side. The lubrication assembly is located on the lower side of the guide rail main frame and includes a lubricating oil storage chamber, nitrile rubber, a PTFE coating, a micro gear pump, an oil extraction pipe, an oil delivery pipe, a stainless steel micro-orifice nozzle, an oil replenishment port, a sealing plug, and a polyurethane scraper. The lubricating oil storage chamber is located on the lower side of the guide rail main frame, and its sidewalls are filled with nitrile rubber. This telescopic fork guide rail assembly with automatic lubrication function enables the device to self-lubricate the guide rail surface, reducing friction between the guide rail and the slider, reducing wear, and extending its service life. The guiding assembly enables the device to stably limit the movement of the guide rail, further maintaining stability.
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Description

Technical Field

[0001] This utility model relates to the field of fork rail technology, specifically a telescopic fork rail assembly with automatic lubrication function. Background Technology

[0002] Telescopic forks are automated devices used for material handling and transfer. They are typically used in conjunction with stacker cranes or lifting mechanisms, featuring bidirectional telescopic movement. They can precisely position and transfer materials between different locations, and are applicable to smart warehousing, automated production lines, and other fields. Currently, guide rail assemblies are usually used to support and guide the movement of the telescopic forks.

[0003] Most guide rail assemblies on the market do not have automatic lubrication, which causes wear and tear on the guide rails due to long-term reciprocating motion, leading to unstable operation and shortening their service life. To address this, we propose a telescopic fork guide rail assembly with automatic lubrication. Utility Model Content

[0004] The purpose of this invention is to provide a telescopic fork guide rail assembly with automatic lubrication function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a telescopic fork guide rail assembly with automatic lubrication function, comprising a guide rail main frame and a lubrication assembly. The guide rail main frame is an integrated structure, and a protective box is installed on the left side of the guide rail main frame. The lubrication assembly is located on the lower side of the guide rail main frame and includes a lubricating oil storage chamber, nitrile rubber, a PTFE coating, a micro gear pump, an oil suction pipe, an oil delivery pipe, a stainless steel micro-orifice nozzle, an oil replenishment port, a sealing plug, and a polyurethane scraper. The lubricating oil storage chamber is located on the lower side of the guide rail main frame, and the side wall of the lubricating oil storage chamber is filled with nitrile rubber. The inner surface of the lubricating oil storage chamber is coated with a PTFE coating, and the lubricating oil storage chamber is an integrated structure. A micro gear pump is installed inside the protective box, and an oil suction pipe is installed on the lower side of the micro gear pump.

[0006] Furthermore, an oil delivery pipe is installed on the upper side of the micro gear pump, and a stainless steel micro-orifice nozzle is provided at the right end of the oil delivery pipe.

[0007] Furthermore, the right end of the stainless steel micro-orifice nozzle penetrates the right side of the protective box and the left side of the guide rail main frame and extends into the interior of the guide rail main frame. The stainless steel micro-orifice nozzle and the oil delivery pipe are integrated into one structure. A polyurethane scraper is slidably connected to the inner surface of the guide rail main frame.

[0008] Furthermore, an oil replenishment port is provided at the upper right end of the lubricating oil storage cavity, and a sealing plug is engaged with the inner side of the oil replenishment port.

[0009] Furthermore, the upper surface of the protective box is provided with a snap-fit ​​groove, and a snap-fit ​​frame is snap-fitted into the inner side of the snap-fit ​​groove. A sealing box cover is installed on the upper surface of the snap-fit ​​frame.

[0010] Furthermore, the surface of the guide rail main frame is provided with a guide component for guiding, and the guide component includes a limiting strip, a ball groove and a guide rail movable seat, wherein the limiting strip is provided on the lower side of the inner surface of the guide rail main frame.

[0011] Furthermore, ball grooves are provided on both sides of the inner surface of the guide rail main frame, and a guide rail movable seat is slidably connected to the inner side of the guide rail main frame. The lower side of the guide rail movable seat is slidably connected to the outer surface of the limiting strip.

[0012] Furthermore, the guide assembly also includes a ball bearing assembly and a limiting support plate. The ball bearing assembly is provided on the inner side of both ends of the guide rail movable seat. The limiting support plate is installed on the upper side of the guide rail movable seat. The two sides of the guide rail movable seat are connected to the surface of the polyurethane scraper. Two sets of polyurethane scrapers are symmetrically arranged. The lower sides of the limiting support plate are slidably connected to the upper sides of the guide rail main frame.

[0013] This utility model provides a telescopic fork guide rail assembly with automatic lubrication function, which has the following beneficial effects:

[0014] 1. This utility model incorporates a lubrication assembly, which includes a lubricating oil storage chamber, nitrile rubber, a PTFE coating, a micro gear pump, an oil extraction pipe, an oil delivery pipe, a stainless steel micro-orifice nozzle, an oil replenishment port, a sealing plug, and a polyurethane scraper. In use, lubricating oil is supplied to the lubricating oil storage chamber through the oil replenishment port. The oil replenishment port is sealed by the sealing plug. The double-layer sealing structure of the nitrile rubber and PTFE coating improves the sealing performance of the lubricating oil storage chamber. The micro gear pump is activated, drawing lubricating oil from the storage chamber through the oil extraction pipe and delivering it to the inside of the oil delivery pipe. The oil delivery pipe then atomizes and sprays the lubricating oil through the stainless steel micro-orifice nozzle onto the inner surface. As the guide rail movable seat slides along the inner side of the guide rail main frame, the polyurethane scraper on the surface of the movable seat evenly applies lubricating oil to the entire contact surface of the guide rail main frame. This allows the device to self-lubricate the guide rail surface, reducing friction between the guide rail and the slider, minimizing wear, and extending its service life.

[0015] 2. This utility model incorporates a guide assembly, which includes a limiting strip, a ball groove, and a guide rail movable seat. The guide assembly also includes a ball assembly and a limiting support plate. During use, the sliding connection between the lower side of the guide rail movable seat and the surface of the limiting strip provides basic limiting for the movement of the guide rail movable seat. The ball assembly moves along the inner side of the ball groove, improving positioning accuracy, reducing wear, and ensuring smooth movement. The sliding connection between the limiting support plate and the surface of the guide rail main frame further limits the movement of the guide rail movable seat, enabling the device to stably limit the movement of the guide rail and maintain stability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a telescopic fork guide rail assembly with automatic lubrication function according to the present invention.

[0017] Figure 2 This utility model relates to a telescopic fork guide rail assembly with automatic lubrication function. Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 3 This is a three-dimensional structural diagram of the lubrication component of a telescopic fork guide rail assembly with automatic lubrication function according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of a telescopic fork guide rail assembly with automatic lubrication function according to the present invention.

[0020] In the diagram: 1. Main frame of the guide rail; 2. Protective box; 3. Lubrication assembly; 301. Lubricating oil storage chamber; 302. Nitrile rubber; 303. PTFE coating; 304. Miniature gear pump; 305. Oil suction pipe; 306. Oil delivery pipe; 307. Stainless steel micro-orifice nozzle; 308. Oil replenishment port; 309. Sealing plug; 310. Polyurethane scraper; 4. Snap-fit ​​groove; 5. Snap-fit ​​frame; 6. Sealing box cover; 7. Guide assembly; 701. Limiting strip; 702. Ball groove; 703. Guide rail movable seat; 704. Ball assembly; 705. Limiting support plate. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 4As shown, a telescopic fork guide rail assembly with automatic lubrication function includes a guide rail main frame 1 and a lubrication component 3. The guide rail main frame 1 is an integrated structure, and a protective box 2 is installed on the left side of the guide rail main frame 1. The lubrication component 3 is located on the lower side of the guide rail main frame 1 and includes a lubricating oil storage cavity 301, nitrile rubber 302, PTFE coating 303, a micro gear pump 304, an oil suction pipe 305, an oil delivery pipe 306, a stainless steel micro-orifice nozzle 307, an oil replenishment port 308, a sealing plug 309, and a polyurethane scraper 310. The lubricating oil storage cavity 301 is located on the lower side of the guide rail main frame 1, and the inside of the side wall of the lubricating oil storage cavity 301 is filled with nitrile rubber 302. The inner surface of the lubricating oil storage cavity 301 is coated with PTFE. The coating 303 and the lubricating oil storage chamber 301 are integrated structures. The protective box 2 is equipped with a micro gear pump 304, and an oil suction pipe 305 is installed on the lower side of the micro gear pump 304. An oil delivery pipe 306 is installed on the upper side of the micro gear pump 304. A stainless steel micro-orifice nozzle 307 is provided at the right end of the oil delivery pipe 306. The right end of the stainless steel micro-orifice nozzle 307 passes through the right side of the protective box 2 and the left side of the guide rail main frame 1 and extends into the interior of the guide rail main frame 1. The stainless steel micro-orifice nozzle 307 and the oil delivery pipe 306 are integrated structures. A polyurethane scraper 310 is slidably connected to the inner surface of the guide rail main frame 1. An oil replenishment port 308 is provided at the upper right end of the lubricating oil storage chamber 301, and a sealing plug 309 is engaged and connected to the inner side of the oil replenishment port 308.

[0023] The specific operation is as follows: During use, lubricating oil is supplied to the lubricating oil storage chamber 301 through the oil replenishment port 308. The oil replenishment port 308 is sealed by the sealing plug 309. The double-layer sealing structure of nitrile rubber 302 and PTFE coating 303 improves the sealing performance of the lubricating oil storage chamber 301 itself. The micro gear pump 304 is started, so that the micro gear pump 304 draws out the lubricating oil inside the lubricating oil storage chamber 301 through the oil extraction pipe 305 and delivers it to the inside of the oil delivery pipe 306. Then, the oil delivery pipe 306 atomizes and sprays the lubricating oil onto the inner surface through the stainless steel micro-orifice nozzle 307. During the sliding process of the guide rail movable seat 703 along the inner side of the guide rail main frame 1, the lubricating oil is evenly applied to the entire contact surface of the inner side of the guide rail main frame 1 by the polyurethane scraper 310 on the surface of the guide rail movable seat 703.

[0024] Please refer to Figures 3 to 4The upper surface of the protective box 2 has a snap-fit ​​groove 4, and a snap-fit ​​frame 5 is snap-fitted inside the snap-fit ​​groove 4. A sealing box cover 6 is installed on the upper surface of the snap-fit ​​frame 5. The surface of the guide rail main frame 1 is provided with a guide component 7 for guiding, and the guide component 7 includes a limit strip 701, a ball groove 702, and a guide rail movable seat 703. The limit strip 701 is located on the lower side of the inner surface of the guide rail main frame 1. Ball grooves 702 are opened on both sides of the inner surface of the guide rail main frame 1, and the guide rail movable seat 703 is slidably connected to the inner side of the guide rail main frame 1. The lower side of the movable seat 703 is slidably connected to the outer surface of the limiting strip 701. The guide assembly 7 also includes a ball set 704 and a limiting support plate 705. The inner sides of both ends of the movable seat 703 are provided with ball sets 704. The upper side of the movable seat 703 is installed with a limiting support plate 705. The two sides of the movable seat 703 are connected to the surface of the polyurethane scraper 310. Two sets of polyurethane scrapers 310 are symmetrically arranged. The lower sides of the limiting support plate 705 are slidably connected to the upper sides of the main frame 1 of the guide rail.

[0025] The specific operation is as follows: When in use, the sealing box cover 6 can be opened to facilitate maintenance of the micro gear pump 304 inside the protective box 2. The sealing box cover 6 is placed on the protective box 2 through the snap-fit ​​connection between the snap-fit ​​frame 5 and the snap-fit ​​groove 4 to seal the protective box 2. The sliding connection between the lower side of the guide rail movable seat 703 and the surface of the limit strip 701 provides a basic limiting function for the movement of the guide rail movable seat 703. The ball assembly 704 moves along the inner side of the ball groove 702, which can improve the positioning accuracy of the movement, reduce wear, and ensure the smoothness of the movement. The sliding connection between the limit support plate 705 and the surface of the guide rail main frame 1 further limits the movement of the guide rail movable seat 703.

[0026] In summary, as Figures 1 to 4As shown, this telescopic fork guide rail assembly with automatic lubrication function, in use, firstly, lubricating oil is supplied to the lubricating oil storage chamber 301 through the oil replenishment port 308, and the oil replenishment port 308 is sealed by the sealing plug 309. The double-layer sealing structure of nitrile rubber 302 and PTFE coating 303 improves the sealing performance of the lubricating oil storage chamber 301 itself. Subsequently, the sliding connection between the lower side of the guide rail movable seat 703 and the surface of the limiting strip 701 provides basic limiting for the movement of the guide rail movable seat 703. The ball assembly 704 moves along the inner side of the ball groove 702, which improves the positioning accuracy of the movement, reduces wear, and ensures the smoothness of the movement. The sliding connection between the limiting support plate 705 and the surface of the guide rail main frame 1 further limits the movement of the guide rail movable seat 703. During movement, the micro gear pump 304 can be activated to extract lubricating oil from the lubricating oil storage chamber 301 through the oil extraction pipe 305 and deliver it to the inside of the oil delivery pipe 306. The oil delivery pipe 306 then atomizes and sprays the lubricating oil onto the inner surface through the stainless steel micro-orifice nozzle 307. As the guide rail movable seat 703 slides along the inner side of the guide rail main frame 1, the polyurethane scraper 310 on the surface of the guide rail movable seat 703 evenly applies the lubricating oil to the entire contact surface of the inner side of the guide rail main frame 1. After use, the sealing box cover 6 can be opened to facilitate maintenance of the micro gear pump 304 inside the protective box 2. The sealing box cover 6 is placed on the protective box 2 by the snap-fit ​​connection between the snap-fit ​​frame 5 and the snap-fit ​​groove 4 to seal the protective box 2.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A telescopic fork guide rail assembly with automatic lubrication function, comprising a guide rail main frame (1) and a lubrication assembly (3), characterized in that: The guide rail main frame (1) is an integrated structure, and a protective box (2) is installed on the left side of the guide rail main frame (1). The lubrication component (3) is located on the lower side of the guide rail main frame (1), and the lubrication component (3) includes a lubricating oil storage chamber (301), nitrile rubber (302), PTFE coating (303), micro gear pump (304), oil suction pipe (305), oil delivery pipe (306), stainless steel micro-orifice nozzle (307), oil replenishment port (308), sealing plug (309), and polyurethane. The ester scraper (310) is located on the lower side of the guide rail main frame (1), and the inside of the side wall of the lubricating oil storage cavity (301) is filled with nitrile rubber (302). The inner surface of the lubricating oil storage cavity (301) is provided with a PTFE coating (303), and the lubricating oil storage cavity (301) is an integrated structure. The protective box (2) is provided with a micro gear pump (304), and an oil suction pipe (305) is installed on the lower side of the micro gear pump (304).

2. The telescopic fork guide rail assembly with automatic lubrication function according to claim 1, characterized in that, The micro gear pump (304) is equipped with an oil delivery pipe (306) on its upper side, and a stainless steel micro-orifice nozzle (307) is provided at the right end of the oil delivery pipe (306).

3. A telescopic fork guide rail assembly with automatic lubrication function according to claim 1, characterized in that, The stainless steel micro-orifice nozzle (307) penetrates the right side of the protective box (2) and the left side of the guide rail main frame (1) and extends into the interior of the guide rail main frame (1). The stainless steel micro-orifice nozzle (307) and the oil delivery pipe (306) are integrated structures. A polyurethane scraper (310) is slidably connected to the inner surface of the guide rail main frame (1).

4. A telescopic fork guide rail assembly with automatic lubrication function according to claim 1, characterized in that, The upper right end of the lubricating oil storage cavity (301) is provided with an oil replenishment port (308), and a sealing plug (309) is engaged and connected to the inside of the oil replenishment port (308).

5. A telescopic fork guide rail assembly with automatic lubrication function according to claim 1, characterized in that, The upper surface of the protective box (2) is provided with a snap-fit ​​groove (4), and a snap-fit ​​frame (5) is snap-fitted to the inside of the snap-fit ​​groove (4). A sealing box cover (6) is installed on the upper surface of the snap-fit ​​frame (5).

6. A telescopic fork guide rail assembly with automatic lubrication function according to claim 1, characterized in that, The guide rail main frame (1) is provided with a guide component (7) for guiding, and the guide component (7) includes a limiting strip (701), a ball groove (702) and a guide rail movable seat (703). The limiting strip (701) is provided on the lower side of the inner surface of the guide rail main frame (1).

7. A telescopic fork guide rail assembly with automatic lubrication function according to claim 1, characterized in that, The guide rail main frame (1) has ball grooves (702) on both sides of its inner surface, and a guide rail movable seat (703) is slidably connected to the inner side of the guide rail main frame (1). The lower side of the guide rail movable seat (703) is slidably connected to the outer surface of the limiting strip (701).

8. A telescopic fork guide rail assembly with automatic lubrication function according to claim 6, characterized in that, The guide assembly (7) further includes a ball set (704) and a limiting support plate (705), and the ball set (704) is provided on the inner side of both ends of the guide rail movable seat (703). The limiting support plate (705) is installed on the upper side of the guide rail movable seat (703), and the two sides of the guide rail movable seat (703) are connected to the surface of the polyurethane scraper (310). The lower sides of the two sides of the limiting support plate (705) are slidably connected to the upper sides of the guide rail main frame (1).