An adaptive friction-reducing lubrication device for rail side

The solar-powered adaptive friction-reducing lubrication device uses proximity switch sensors and an electric lubrication pump to achieve quantitative delivery and uniform spraying of lubricant, solving the problem of uncontrollable lubrication dosage in existing technologies and improving the efficiency and safety of lubrication operations.

CN224576630UActive Publication Date: 2026-07-31HARBIN VEIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing rail lubrication method relies on manual application, which results in uncontrollable lubrication dosage, uneven coverage, low work efficiency, and safety hazards.

Method used

The adaptive friction-reducing lubrication device, powered by solar energy, uses a proximity switch sensor to detect the passing of a train and controls an electric lubrication pump to deliver lubricant in a measured amount, which is then evenly sprayed onto the track through a coating plate.

Benefits of technology

This technology enables the precise and uniform spraying of lubricant, improving lubrication efficiency, reducing safety hazards, and ensuring the long service life of the track.

✦ Generated by Eureka AI based on patent content.

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Abstract

An adaptive friction-reducing lubrication device for rail sides is disclosed, relating to the field of rail transit technology. This invention addresses the problems of existing rail lubrication methods that rely on manual brushing. Because the lubricant reaches the rail through random, non-directional flow under its own weight and the guidance of the brush, the application of lubricant is uncontrollable, resulting in uneven coverage and low efficiency. The device includes a solar panel 1 on the top of a lubricating oil tank 3, fixedly connected to one end of the top surface of the tank via a bracket 2. Coating plates 4 are installed on the two opposing inner sides of the outer rail 7 and inner rail 8. A proximity switch sensor 5 is located next to the coating plate 4 on the outer rail 7. An electric lubrication pump 10 is installed at the oil drain hole of the lubricating oil tank 3, with its output connected to the oil inlet of the coating plate 4 via a pipe. A control box 6 is located next to the lubricating oil tank 3. This invention is applicable to the field of automatic rail lubrication technology.
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Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically to a rail side adaptive friction reduction and lubrication device. Background Technology

[0002] In recent years, with the continuous development of the railway industry, the wear of rails and wheel flanges has increased accordingly. Rail side wear is particularly prominent during operation on numerous curved sections, leading to a shorter wheelset maintenance cycle. The vertical movement and significant lateral forces between the rails and wheels are the causes of wear, while sliding friction in the rail-wheel contact area is the condition for wear. When a train turns, because the wheels on both sides are connected by a single axle without differential control, sliding friction occurs between the wheel and rail in addition to rolling friction. Moreover, as the bending radius of the track decreases, the sliding friction during train turns becomes more pronounced. This not only causes severe wear on the rails and wheels but also generates abnormal noise, causing noise pollution.

[0003] To reduce frictional loss at curves in railway tracks, it is crucial to apply lubricant to the surface of the curves. This requires coating the rails with lubricating oil. The most common method in existing technology is to manually deliver the lubricant to the track surface using a brush to reduce friction. However, because the lubricant reaches the rails through random, non-directional flow under its own weight and the guiding effect of the brush, the final amount of lubricant reaching the rails is uncontrollable. Too much lubricant will reduce wheel braking performance and pose a safety hazard, while too little lubricant will not provide effective lubrication and will exacerbate wear between the wheels and the rails.

[0004] In summary, the current method of lubricating rails involves manual application. Because the lubricant reaches the rails through random, non-directional flow under its own weight and the guidance of the brush, the amount of lubricant applied is uncontrollable, the coverage is uneven, and the work efficiency is low. Utility Model Content

[0005] This invention addresses the problem that existing methods of lubricating rails involve manual application, where the lubricant reaches the rails through random, non-directional flow under its own weight and the guidance of the brush, resulting in uncontrollable lubricant dosage, uneven coverage, and low work efficiency. Therefore, this invention proposes an adaptive friction-reducing lubrication device for the rail side.

[0006] The present invention relates to an adaptive friction reduction and lubrication device for rail side, which comprises a solar panel 1, a fixed bracket 2, a lubricating oil tank 3, a coating plate 4, a proximity switch sensor 5, a control box 6, and an electric lubrication pump 10.

[0007] A solar panel 1 is provided on the top of the lubricating oil tank 3, and the solar panel 1 is fixedly connected to one end of the top surface of the lubricating oil tank 3 through a fixed bracket 2. A coating plate 4 is provided on each of the two inner sides of the outer track 7 and the inner track 8 respectively. A proximity switch sensor 5 is provided on one side of the coating plate 4 on the outer track 7. An electric lubrication pump 10 is provided on the oil drain hole of the lubricating oil tank 3. The output end of the electric lubrication pump 10 is connected to the oil inlet end of the coating plate 4 through a pipe. A control box 6 is provided on one side of the lubricating oil tank 3.

[0008] Furthermore, the vehicle control box 6 is connected to the output terminal of the proximity switch sensor 5 via the signal input terminal, and the drive signal output terminal of the control box 6 is connected to the electric lubrication pump 10.

[0009] Furthermore, the oil inlet of the lubricating oil tank 3 is provided with a cover plate 9, and the edge of the cover plate 9 is hinged to the edge of the oil inlet of the lubricating oil tank 3.

[0010] Furthermore, a fixed support 11 is provided at each of the four corners of the bottom surface of the lubricating oil tank 3;

[0011] Furthermore, the coating plate 4 includes a fixing block 4-1, a fixing angle steel 4-2, an L-shaped rubber seat 4-3, a middle oil hole plate 4-4, and a base pad 4-5;

[0012] An L-shaped rubber seat 4-3 is provided at both ends of the upper surface of the intermediate oil hole plate 4-4, and a base pad 4-5 is provided at both ends of the lower surface of the intermediate oil hole plate 4-4. The L-shaped rubber seat 4-3 is fixedly connected to the base pad 4-5 by bolt assembly. A fixed angle steel 4-2 is provided along the length direction of the lower surface of the intermediate oil hole plate 4-4. A fixed block 4-1 is provided in the middle of the upper surface of the intermediate oil hole plate 4-4. An oil inlet hole 4-6 is machined on the upper surface of the fixed block 4-1, and the oil inlet hole 4-6 on the fixed block 4-1 is connected to one of the oil drain holes 4-7 in the middle of the upper surface of the intermediate oil hole plate 4-4.

[0013] Furthermore, the fixing block 4-1, the fixing angle steel 4-2, and the intermediate oil hole plate 4-4 are integrally formed;

[0014] Furthermore, the fixed bracket 2 includes a folding frame 2-1, a pipe clamp 2-2, a hinge seat 2-3, a connecting rod 2-4, a fixed foot 2-5, a solar panel frame 2-6, a fixed beam 2-7, and a hinge 2-8;

[0015] A folding frame 2-1 is provided in the middle of one long side end face of the solar panel frame 2-6, and the folding frame 2-1 is hinged to the solar panel frame 2-6 via a hinge 2-8. A tube clamp 2-2 is provided in the middle of both ends of the upper surface of the folding frame 2-1. At least two fixing beams 2-7 are evenly provided in the length direction inside the solar panel frame 2-6. A hinge seat 2-3 is provided in the middle of the other long side end face of the solar panel frame 2-6. The hinge seat 2-3 is hinged to one end of the connecting rod 2-4 via a pin. The other end of the connecting rod 2-4 is provided with a fixing foot 2-5.

[0016] Furthermore, the solar panel 1 is embeddedly connected to the solar panel frame 2-6;

[0017] Furthermore, during use, the device is installed in a safe location outside the track, and two coated plates 4 are fixed to the two opposing inner sides of the outer track 7 and the inner track 8. The solar panel 1 generates electricity under normal sunlight, which is then charged by the controller. Based on the direction of sunlight, the tilt angle of the solar panel frame 2-6 on the fixing bracket 2 is adjusted so that the solar panel 1 faces the direction of sunlight, thereby supplying power to the proximity switch sensor 5, control box 6, and electric lubrication pump 10. When a train passes, the proximity switch sensor 5, installed on the inner side of the track, senses the passing train. The controller inside the control box 6 responds to and identifies the sensing signal, and the controller accumulates the number of times the train passes. When the number of train passes reaches the system set value, the control box 6 transmits the drive signal to the electric lubrication pump 10, and the electric lubrication pump 10 starts working. By controlling the working time of the electric lubrication pump 10, the amount of friction reducer discharged from the lubricating oil tank 3 can be controlled. The friction reducer is then delivered to the coating plate 4 on the track through the high-pressure oil pipe. It is evenly distributed to each oil drain hole 4-7 through the middle oil hole plate 4-4 in the coating plate 4, so that the friction reducer is evenly and quantitatively sprayed onto the track, so that the wheel flange of the train is carried along the entire curve.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention overcomes the shortcomings of existing technologies. When a train passes by, a proximity switch sensor installed on the inner side of the track senses the passing train. The controller inside the control box responds and identifies the sensing signal, and the controller accumulates the number of times the train passes. When the number of train passes reaches the system set value, the control box transmits a drive signal to the electric lubrication pump, which then operates. By controlling the operating time of the electric lubrication pump, the amount of friction-reducing agent discharged from the lubricating oil tank can be controlled. The friction-reducing agent is then delivered to the coating plate on the track through a high-pressure oil pipe. It is evenly distributed to each oil drain hole through the central oil hole plate in the coating plate, so that the friction-reducing agent is evenly and quantitatively sprayed onto the track, thereby greatly improving the efficiency of track lubrication operations. Attached Figure Description

[0020] Figure 1 This is a front view of a rail side adaptive friction reduction and lubrication device according to the present invention;

[0021] Figure 2 This is a side view of the lubricating oil tank in the adaptive friction reduction lubrication device for rail side described in this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the coating plate in the adaptive friction reduction and lubrication device for rail side described in this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the fixed bracket in the adaptive friction reduction and lubrication device for rail side described in this utility model. Detailed Implementation

[0024] Specific implementation method one: Combining Figure 1 and Figure 2 This embodiment describes an adaptive friction-reducing lubrication device for rail side, which comprises a solar panel 1, a fixed bracket 2, a lubricating oil tank 3, a coating plate 4, a proximity switch sensor 5, a control box 6, and an electric lubrication pump 10.

[0025] A solar panel 1 is provided on the top of the lubricating oil tank 3, and the solar panel 1 is fixedly connected to one end of the top surface of the lubricating oil tank 3 through a fixed bracket 2. A coating plate 4 is provided on each of the two inner sides of the outer track 7 and the inner track 8 respectively. A proximity switch sensor 5 is provided on one side of the coating plate 4 on the outer track 7. An electric lubrication pump 10 is provided on the oil drain hole of the lubricating oil tank 3. The output end of the electric lubrication pump 10 is connected to the oil inlet end of the coating plate 4 through a pipe. A control box 6 is provided on one side of the lubricating oil tank 3.

[0026] In this specific embodiment, the device is installed in a safe location outside the track, and two coated plates 4 are fixed to the two opposite inner sides of the outer track 7 and the inner track 8. The solar panel 1 generates electricity under normal sunlight, which is then charged by the controller. Based on the direction of sunlight, the tilt angle of the solar panel frame 2-6 on the fixing bracket 2 is adjusted so that the solar panel 1 faces the direction of sunlight, thereby supplying power to the proximity switch sensor 5, control box 6, and electric lubrication pump 10. When a train passes, the proximity switch sensor 5, installed on the inner side of the track, senses the passing train. The controller inside the control box 6 responds to and identifies the sensing signal, and the controller accumulates the number of times the train passes. When the number of train passes reaches the system set value, the control box 6 transmits the drive signal to the electric lubrication pump 10, and the electric lubrication pump 10 starts working. By controlling the working time of the electric lubrication pump 10, the amount of friction reducer discharged from the lubricating oil tank 3 can be controlled. The friction reducer is then delivered to the coating plate 4 on the track through the high-pressure oil pipe. It is evenly distributed to each oil drain hole 4-7 through the middle oil hole plate 4-4 in the coating plate 4, so that the friction reducer is evenly and quantitatively sprayed onto the track, so that the wheel flanges of the train are carried along the entire curve.

[0027] Specific Implementation Method Two: Combining Figure 1 and Figure 2 This embodiment further defines the lubrication device described in Specific Embodiment 1. In this embodiment, a railside adaptive friction-reducing lubrication device is provided. The vehicle signal input terminal of the control box 6 is connected to the output terminal of the proximity switch sensor 5, and the drive signal output terminal of the control box 6 is connected to the electric lubrication pump 10.

[0028] Specific implementation method three: Combining Figure 1 and Figure 2 This embodiment further defines the lubrication device described in Specific Embodiment 1. In this embodiment, a rail side adaptive friction reduction lubrication device is provided with a cover plate 9 at the oil inlet of the lubricating oil tank 3, and the edge of the cover plate 9 is hinged to the edge of the oil inlet of the lubricating oil tank 3.

[0029] Specific implementation method four: Combination Figure 1 and Figure 2 This embodiment further defines the lubrication device described in Specific Embodiment 3. In this embodiment, a rail side adaptive friction reduction lubrication device is provided with a fixed support 11 at each of the four corners of the bottom surface of the lubricating oil tank 3.

[0030] Specific Implementation Method Five: Combining Figure 1 and Figure 2This embodiment further defines the lubrication device described in Specific Embodiment 1. The rail side adaptive friction reduction lubrication device described in this embodiment includes a coating plate 4 comprising a fixing block 4-1, a fixing angle steel 4-2, an L-shaped rubber seat 4-3, an intermediate oil hole plate 4-4, and a base pad 4-5.

[0031] An L-shaped rubber seat 4-3 is provided at each end of the upper surface of the intermediate oil hole plate 4-4, and a base pad 4-5 is provided at each end of the lower surface of the intermediate oil hole plate 4-4. The L-shaped rubber seat 4-3 is fixedly connected to the base pad 4-5 by bolt assembly. A fixed angle steel 4-2 is provided along the length of the lower surface of the intermediate oil hole plate 4-4. A fixed block 4-1 is provided in the middle of the upper surface of the intermediate oil hole plate 4-4. An oil inlet hole 4-6 is machined on the upper surface of the fixed block 4-1, and the oil inlet hole 4-6 on the fixed block 4-1 is connected to one of the oil drain holes 4-7 in the middle of the upper surface of the intermediate oil hole plate 4-4.

[0032] Specific Implementation Method Six: Combination Figure 1 and Figure 2 This embodiment further defines the lubrication device described in Specific Embodiment Five. In this embodiment, the railside adaptive friction-reducing lubrication device is provided, in which the fixing block 4-1, the fixing angle steel 4-2, and the intermediate oil hole plate 4-4 are integrally arranged.

[0033] Specific implementation method seven: Combining Figure 1 and Figure 2 This embodiment is a further limitation of the lubrication device described in Specific Embodiment 1. The rail side adaptive friction reduction lubrication device described in this embodiment includes a fixed bracket 2 comprising a folding frame 2-1, a pipe clamp 2-2, a hinge seat 2-3, a connecting rod 2-4, a fixed foot seat 2-5, a solar panel frame 2-6, a fixed beam 2-7, and a hinge 2-8.

[0034] A folding frame 2-1 is provided in the middle of one long side end face of the solar panel frame 2-6, and the folding frame 2-1 is hinged to the solar panel frame 2-6 via a hinge 2-8. A tube clamp 2-2 is provided in the middle of both ends of the upper surface of the folding frame 2-1. At least two fixing beams 2-7 are evenly provided in the length direction inside the solar panel frame 2-6. A hinge seat 2-3 is provided in the middle of the other long side end face of the solar panel frame 2-6. The hinge seat 2-3 is hinged to one end of the connecting rod 2-4 via a pin. The other end of the connecting rod 2-4 is provided with a fixing foot 2-5.

[0035] In this specific embodiment, a hinge seat 2-3 is provided in the middle of the other long side end face of the solar panel frame 2-6. The hinge seat 2-3 is hinged to one end of the connecting rod 2-4 through a pin. This structure can adjust the tilt angle of the solar panel frame 2-6 according to the direction of sunlight, so as to adjust the direction of sunlight on the solar panel 1 on the solar panel frame 2-6, thereby improving the efficiency of the solar panel 1 in converting sunlight into electrical energy.

[0036] Specific implementation method eight: Combination Figure 1 and Figure 2 This embodiment further defines the lubrication device described in Specific Embodiment Seven. In this embodiment, the rail side adaptive friction reduction lubrication device is described, wherein the solar panel 1 is embeddedly connected to the solar panel frame 2-6.

[0037] Working principle

[0038] In use, the device is installed in a safe location outside the track, and two coated plates 4 are fixed to the two opposing inner sides of the outer track 7 and the inner track 8. The solar panel 1 generates electricity under normal sunlight, which is then charged by the controller. Based on the direction of sunlight, the tilt angle of the solar panel frame 2-6 on the fixing bracket 2 is adjusted so that the solar panel 1 faces the direction of sunlight, thereby supplying power to the proximity switch sensor 5, control box 6, and electric lubrication pump 10. When a train passes, the proximity switch sensor 5, installed on the inner side of the track, senses the passing train and controls... The controller inside box 6 responds to and identifies the sensing signal, and the controller accumulates the number of times the train passes. When the number of train passes reaches the system set value, the control box 6 transmits the drive signal to the electric lubrication pump 10, and the electric lubrication pump 10 works. By controlling the working time of the electric lubrication pump 10, the amount of friction reducer discharged from the lubricating oil tank 3 can be controlled. Then, the friction reducer is delivered to the coating plate 4 on the track through the high-pressure oil pipe. It is evenly distributed to each oil drain hole 4-7 through the middle oil hole plate 4-4 in the coating plate 4, so that the friction reducer is evenly and quantitatively sprayed onto the track, so that the wheel flange of the train is carried along the entire curve.

Claims

1. A rail side self-adapting wear-reducing lubrication device for a steel rail, characterized in that: It includes a solar panel (1), a mounting bracket (2), a lubricating oil tank (3), a coating plate (4), a proximity switch sensor (5), a control box (6), and an electric lubrication pump (10). A solar panel (1) is provided on the top of the lubricating oil tank (3), and the solar panel (1) is fixedly connected to one end of the top surface of the lubricating oil tank (3) through a fixed bracket (2). A coating plate (4) is provided on each of the two inner sides of the outer track (7) and the inner track (8). A proximity switch sensor (5) is provided on one side of the coating plate (4) on the outer track (7). An electric lubrication pump (10) is provided on the oil drain hole of the lubricating oil tank (3). The output end of the electric lubrication pump (10) is connected to the oil inlet end of the coating plate (4) through a pipe. A control box (6) is provided on one side of the lubricating oil tank (3).

2. A rail side self-adapting friction reducing lubrication device according to claim 1, characterized in that: The vehicle signal input terminal of the control box (6) is connected to the output terminal of the proximity switch sensor (5) for identifying the sensing signal, and the drive signal output terminal of the control box (6) is connected to the electric lubrication pump (10).

3. A rail side self-adapting friction reducing lubrication device according to claim 1, characterized in that: The oil inlet of the lubricating oil tank (3) is provided with a cover plate (9), and the edge of the cover plate (9) is hinged to the edge of the oil inlet of the lubricating oil tank (3).

4. The railside adaptive friction reduction and lubrication device according to claim 3, characterized in that: The lubricating oil tank (3) is provided with a fixed support (11) at each of the four corners of its bottom surface.

5. The railside adaptive friction reduction and lubrication device according to claim 1, characterized in that: The coating plate (4) includes a fixing block (4-1), a fixing angle steel (4-2), an L-shaped rubber seat (4-3), an intermediate oil hole plate (4-4), and a base pad (4-5). An L-shaped rubber seat (4-3) is provided at both ends of the upper surface of the intermediate oil hole plate (4-4), and a base pad (4-5) is provided at both ends of the lower surface of the intermediate oil hole plate (4-4). The L-shaped rubber seat (4-3) is fixedly connected to the base pad (4-5) by bolt assembly. A fixed angle steel (4-2) is provided along the length direction of the lower surface of the intermediate oil hole plate (4-4). A fixed block (4-1) is provided in the middle of the upper surface of the intermediate oil hole plate (4-4). An oil inlet hole (4-6) is machined on the upper surface of the fixed block (4-1), and the oil inlet hole (4-6) on the fixed block (4-1) is connected to one of the oil drain holes (4-7) in the middle of the upper surface of the intermediate oil hole plate (4-4).

6. A rail side self-adapting reduced friction lubrication device according to claim 5, characterized in that: The fixing block (4-1), fixing angle steel (4-2), and intermediate oil hole plate (4-4) are integrally set.

7. A rail side self adaptive wear reduction lubrication device as claimed in claim 1 wherein: The fixed bracket (2) includes a folding frame (2-1), a pipe clamp (2-2), a hinge seat (2-3), a connecting rod (2-4), a fixed foot (2-5), a solar panel frame (2-6), a fixed beam (2-7), and a hinge (2-8). A folding frame (2-1) is provided in the middle of one long side end face of the solar panel frame (2-6), and the folding frame (2-1) is hinged to the solar panel frame (2-6) via a hinge (2-8). A tube clamp (2-2) is provided in the middle of each end of the upper surface of the folding frame (2-1). At least two fixed beams (2-7) are evenly provided inside the solar panel frame (2-6) along the length direction. A hinge seat (2-3) is provided in the middle of the other long side end face of the solar panel frame (2-6). The hinge seat (2-3) is hinged to one end of the connecting rod (2-4) via a pin. The other end of the connecting rod (2-4) is provided with a fixed foot (2-5).

8. A rail side self adaptive friction reducing lubrication device as claimed in claim 7 wherein: The solar panel (1) is embedded in the solar panel frame (2-6).