Electric locomotive pantograph ice breaking device

By designing a scraper and vibrating rod on the pantograph of an electric locomotive, the problems of low heating efficiency and high energy consumption of existing devices have been solved, achieving a high-efficiency and low-energy-consumption ice-breaking effect, adapting to extreme low-temperature environments, and improving the reliability and de-icing capability of the device.

CN224392374UActive Publication Date: 2026-06-23CHINA RAILWAY HOHHOT BUREAU GRP CO LTD HOHHOT LOCOMOTIVE DEPOT +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY HOHHOT BUREAU GRP CO LTD HOHHOT LOCOMOTIVE DEPOT
Filing Date
2025-08-14
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing pantograph ice-breaking devices for electric locomotives suffer from problems such as low heating efficiency, slow ice melting at extreme low temperatures, high energy consumption, increased power load due to continuous heating, and insufficient reliability.

Method used

The ice-breaking device is designed with a scraper and a vibration device. The scraper removes thick ice layers and the vibrator strikes stubborn ice layers, reducing reliance on electric heating and enhancing ice-breaking efficiency and reliability.

Benefits of technology

It improves ice-breaking efficiency, reduces energy consumption, enhances the adaptability of the device in extreme low-temperature environments, prevents secondary icing, and improves the reliability and de-icing capability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technology field of pantograph, concretely relates to electric locomotive pantograph ice breaking device, including bearing plate, two bow -shaped boards are fixedly connected in bearing plate top, bearing plate top is fixedly connected with support seat, bearing plate top is fixedly connected with angle adjusting seat, the ice breaking device that scrapes ice layer is provided at angle adjusting seat top, the ice breaking device includes two recesss, two recesss all are established on angle adjusting seat top, two recesss inner wall all have and insert the plug -in board that inserts, two plug -in board top fixedly connected with same upper frame. The utility model solves the problem that single electric heating exists low heating efficiency, ice melting is slow in extreme low temperature, and the problem that high energy consumption continues to heat increases electric power load, and the problem that local overheating risk reliability is insufficient in the device, thereby removes thick ice layer, enhances ice breaking efficiency and reduces energy consumption, reduces the dependence on electric heating and enhances reliability, and the effect that adapts to extreme low temperature environment.
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Description

Technical Field

[0001] This utility model belongs to the field of pantograph technology, specifically relating to an ice-breaking device for pantographs of electric locomotives. Background Technology

[0002] The pantograph ice-breaking device for electric locomotives is a specialized device used to remove ice and snow from the contact wires and pantograph sliding surfaces, ensuring stable current intake for electric locomotives in frigid environments. This device is usually integrated into the pantograph head and must be wear-resistant, high-voltage resistant, and adaptable to low temperatures. Some advanced systems also combine temperature sensing and automatic control technologies to achieve efficient and low-energy ice-breaking operations, ensuring the safety of train operation in winter.

[0003] Chinese patent CN221819881U discloses an ice-breaking device for a pantograph of an electric locomotive. The device includes a load-bearing plate with an arched plate fixedly mounted on its upper surface. A support structure for fixation is fixedly mounted on the upper surface of the load-bearing plate. A motor for rotation is fixedly mounted on the upper surface of the support structure. A clamping plate for ice breaking is fixedly mounted on one side of the motor. A protective box for protection is fixedly mounted on the surface of the clamping plate. A heating rod for heating is fixedly mounted inside the protective box. This patent, through the coordinated design of the motor and clamping plate, makes the device more efficient and practical. The coordinated design of the motor and clamping plate converts the power of the motor into the power of the clamping plate swinging left and right, causing the ice on the power line to break and fall off due to the impact of the swinging clamping plate. This also increases the efficiency of ice breaking, avoiding the traditional manual ice breaking method and increasing worker efficiency.

[0004] However, the current device has the following problems: the single electric heating in the device has low heating efficiency, slow ice melting at extreme low temperatures, high energy consumption, continuous heating increases the power load, risk of local overheating, and insufficient reliability. Therefore, we have proposed an electric locomotive pantograph ice breaking device. Utility Model Content

[0005] The purpose of this invention is to provide an ice-breaking device for pantographs of electric locomotives, which can solve the problems of low heating efficiency, slow ice melting at extreme low temperatures, high energy consumption, increased power load due to continuous heating, risk of local overheating, and insufficient reliability in related technologies where only electric heating is used.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] An ice-breaking device for an electric locomotive pantograph includes a load-bearing plate. Two bow-shaped plates are fixedly connected to the top of the load-bearing plate. A support base is fixedly connected to the top of the load-bearing plate. An angle adjustment base is fixedly connected to the top of the angle adjustment base. An ice-breaking device for scraping ice is provided on the top of the angle adjustment base. The ice-breaking device includes two grooves, both of which are formed on the top of the angle adjustment base. Insert plates are inserted into the inner walls of both grooves. The tops of the two insert plates are fixedly connected to the same upper frame. A drive motor is fixedly connected to the side of the upper frame. A threaded rod is fixedly connected to the output shaft of the drive motor. A limiting rod is fixedly connected to the inner wall of the upper frame. A threaded sleeve is threadedly connected to the threaded surface of the threaded rod. A connecting plate is fixedly connected to the bottom of the threaded sleeve. A scraper is fixedly connected to the inner wall of the connecting plate.

[0008] Preferably, a servo motor is fixedly connected to the top of the support base, a disk is fixedly connected to the output shaft of the servo motor, a hinge rod is hinged to the side of the disk, the end of the hinge rod away from the disk is hinged to the side of the angle adjustment seat, and a heating box is fixedly connected to the inner wall of the angle adjustment seat.

[0009] Preferably, both ends of the threaded rod are rotatably connected to the inner wall of the upper frame, and the inner wall of the threaded sleeve is slidably connected to the circumferential surface of the limiting rod.

[0010] Preferably, the threaded sleeve is slidably connected to the inner wall of the upper frame on its side, and the scraper is slidably connected to the inner wall of the upper frame on both sides.

[0011] Preferably, the side of the connecting plate is provided with a vibration device for breaking hard ice. The vibration device includes a fixed plate, the side of the fixed plate is fixedly connected to the side of the connecting plate, a movable plate is slidably connected to the side of the connecting plate, a plurality of vibrating rods are fixedly connected to the inner wall of the movable plate, a spring is provided between the bottom of the fixed plate and the top of the movable plate, two placement plates are fixedly connected to the inner wall of the movable plate, and a plurality of support plates are fixedly connected to the inner wall of the upper frame.

[0012] Preferably, a semicircular block is fixed to the bottom of each of the two placement plates, and a semicircular block is fixed to the top of each of the multiple support plates, with the circular surface of the semicircular block of the support plate located on the movement trajectory of the circular surface of the semicircular block of the placement plate.

[0013] Preferably, both sides of the movable plate are slidably connected to the inner wall of the upper frame, and a gap is left between the outer wall of the movable plate and the circumferential surface of the support plate.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention, through the design of an ice-breaking device, enables the cooperation of a groove, insert plate, upper frame, drive motor, threaded rod, limiting rod, threaded sleeve, connecting plate, and scraper. The rotation of the threaded rod drives the threaded sleeve to move, the movement of the threaded sleeve drives the connecting plate to move, and the movement of the connecting plate drives the scraper to move. The scraper can improve ice-breaking efficiency, remove thick ice layers, reduce energy consumption, reduce reliance on electric heating, enhance reliability, and has a simple structure, low maintenance cost, and is suitable for extreme low-temperature environments.

[0016] This invention utilizes a vibration device to coordinate the fixed plate, moving plate, vibrating rod, spring, connecting plate, and placement plate. The moving plate resets under the spring force, causing the vibrating rod to reset and move downwards to strike the ice layer. This method can efficiently break up stubborn ice layers, reduce reliance on heating, consume less energy, and is more adaptable. It is effective for wet snow and thin ice, prevents secondary icing, and improves continuous de-icing capabilities. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the ice-breaking device of this utility model;

[0019] Figure 3 This is a schematic diagram of the scraper structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the vibration device of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the vibrating rod of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Load-bearing plate; 2. Bow-shaped plate; 3. Support base; 4. Angle adjustment base; 5. Ice-breaking device; 51. Groove; 52. Insert plate; 53. Upper frame; 54. Drive motor; 55. Threaded rod; 56. Limiting rod; 57. Threaded sleeve; 58. Connecting plate; 59. Scraper; 6. Vibration device; 61. Fixed plate; 62. Moving plate; 63. Vibrating rod; 64. Spring; 65. Placement plate; 66. Support plate; 7. Servo motor; 8. Disc; 9. Hinge rod; 10. Heating box. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-3 As shown, the pantograph ice-breaking device for an electric locomotive includes a load-bearing plate 1. Two bow-shaped plates 2 are fixedly connected to the top of the load-bearing plate 1. A support base 3 is fixedly connected to the top of the load-bearing plate 1. An angle adjustment base 4 is fixedly connected to the top of the load-bearing plate 1. An ice-breaking device 5 for scraping ice is installed on the top of the angle adjustment base 4. The ice-breaking device 5 includes two grooves 51, both of which are located on the top of the angle adjustment base 4. Insert plates 52 are inserted into the inner walls of both grooves 51. The tops of the two insert plates 52 are fixedly connected to the same upper frame 53. A drive motor 54 is fixedly connected to the side of the upper frame 53. A threaded rod 55 is fixedly connected to the output shaft of the drive motor 54. A limiting rod 56 is fixedly connected to the inner wall of the upper frame 53. A threaded sleeve 57 is threadedly connected to the threaded surface of the threaded rod 55. A connecting plate 58 is fixedly connected to the bottom of the threaded sleeve 57. A scraper 59 is fixedly connected to the inner wall of the connecting plate 58. A servo motor 7 is fixedly connected to the top of the support base 3. A disc 8 is fixedly connected to the output shaft of the servo motor 7. A hinge rod 9 is hinged to the side of the disc 8. The end of the hinge rod 9 away from the disc 8 is hinged to the side of the angle adjustment seat 4. A heating box 10 is fixedly connected to the inner wall of the angle adjustment seat 4. The servo motor 7 drives the angle adjustment seat 4 to swing left and right. The heating box 10 melts ice indirectly through heating. Both ends of the threaded rod 55 are rotatably connected to the inner wall of the upper frame 53. The inner wall of the threaded sleeve 57 is slidably connected to the circumferential surface of the limiting rod 56. The side of the threaded sleeve 57 is slidably connected to the inner wall of the upper frame 53. The sides of the scraper 59 are slidably connected to the inner wall of the upper frame 53.

[0026] According to the above structure, the drive motor 54 is started. The rotation of the output shaft of the drive motor 54 drives the threaded rod 55 to rotate. The rotation of the threaded rod 55 drives the threaded sleeve 57 to move. The movement of the threaded sleeve 57 drives the connecting plate 58 to move. The movement of the connecting plate 58 drives the scraper 59 to move. The scraper 59 can improve ice breaking efficiency, remove thick ice layers, reduce energy consumption, reduce dependence on electric heating, enhance reliability, and has a simple structure, low maintenance cost, and is suitable for extreme low temperature environments.

[0027] like Figures 4-5As shown, a vibration device 6 for breaking hard ice is provided on the side of the connecting plate 58. The vibration device 6 includes a fixed plate 61, which is fixedly connected to the side of the connecting plate 58. A movable plate 62 is slidably connected to the side of the connecting plate 58. Several vibrating rods 63 are fixedly connected to the inner wall of the movable plate 62. A spring 64 is provided between the bottom of the fixed plate 61 and the top of the movable plate 62. Two placement plates 65 are fixedly connected to the inner wall of the movable plate 62. Several support plates 66 are fixedly connected to the inner wall of the upper frame 53. A semi-circular block is fixed to the bottom of each of the two placement plates 65. A semi-circular block is fixed to the top of each of the several support plates 66. The circular surface of the semi-circular block of the support plate 66 is located on the movement trajectory of the circular surface of the semi-circular block of the placement plate 65. The two sides of the movable plate 62 are slidably connected to the inner wall of the upper frame 53. A gap is left between the outer wall of the movable plate 62 and the circumferential surface of the support plate 66.

[0028] According to the above structure, the movement of the connecting plate 58 drives the movement of the moving plate 62, and the movement of the moving plate 62 drives the movement of the placement plate 65. When the semicircular block of the placement plate 65 moves to the position of the semicircular block of the support plate 66, the circular surface of the semicircular block of the support plate 66 pushes the circular surface of the semicircular block of the placement plate 65, causing the placement plate 65 to move upward. The placement plate 65 drives the moving plate 62 to move upward, and the upward movement of the moving plate 62 drives the vibrator 63 to move upward. When the circular surface of the semicircular block of the support plate 66 no longer pushes the semicircular block of the placement plate 65, the moving plate 62 resets under the elastic force of the corresponding spring 64. The moving plate 62 drives the vibrator 63 to reset and move downward to strike the ice layer. This can efficiently break stubborn ice layers, reduce dependence on heating, consume less energy, and has stronger adaptability. It is effective for wet snow and thin ice, and can prevent secondary icing and improve continuous de-icing ability.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An ice-breaking device for a pantograph of an electric locomotive, comprising a load-bearing plate (1), characterized in that: Two arched plates (2) are fixedly connected to the top of the load-bearing plate (1). A support base (3) is fixedly connected to the top of the load-bearing plate (1). An angle adjustment base (4) is fixedly connected to the top of the load-bearing plate (1). An ice-breaking device (5) for scraping ice is provided on the top of the angle adjustment base (4). The ice-breaking device (5) includes two grooves (51). Both grooves (51) are opened on the top of the angle adjustment base (4). Insert plates (52) are inserted into the inner walls of both grooves (51). The top of the insert plate (52) is fixedly connected to the same upper frame (53), the side of the upper frame (53) is fixedly connected to the drive motor (54), the output shaft of the drive motor (54) is fixedly connected to the threaded rod (55), the inner wall of the upper frame (53) is fixedly connected to the limiting rod (56), the threaded surface of the threaded rod (55) is threadedly connected to the threaded sleeve (57), the bottom of the threaded sleeve (57) is fixedly connected to the connecting plate (58), and the inner wall of the connecting plate (58) is fixedly connected to the scraper (59).

2. The pantograph ice-breaking device for electric locomotives according to claim 1, characterized in that: A servo motor (7) is fixedly connected to the top of the support base (3). A disc (8) is fixedly connected to the output shaft of the servo motor (7). A hinge rod (9) is hinged to the side of the disc (8). The end of the hinge rod (9) away from the disc (8) is hinged to the side of the angle adjustment base (4). A heating box (10) is fixedly connected to the inner wall of the angle adjustment base (4).

3. The pantograph ice-breaking device for electric locomotives according to claim 1, characterized in that: Both ends of the threaded rod (55) are rotatably connected to the inner wall of the upper frame (53), and the inner wall of the threaded sleeve (57) is slidably connected to the circumferential surface of the limiting rod (56).

4. The pantograph ice-breaking device for electric locomotives according to claim 1, characterized in that: The threaded sleeve (57) is slidably connected to the inner wall of the upper frame (53) on its side, and the scraper (59) is slidably connected to the inner wall of the upper frame (53) on both sides.

5. The pantograph ice-breaking device for electric locomotives according to claim 1, characterized in that: The connecting plate (58) is provided with a vibration device (6) for breaking hard ice on its side. The vibration device (6) includes a fixed plate (61). The side of the fixed plate (61) is fixedly connected to the side of the connecting plate (58). A movable plate (62) is slidably connected to the side of the connecting plate (58). Several vibrating rods (63) are fixedly connected to the inner wall of the movable plate (62). A spring (64) is provided between the bottom of the fixed plate (61) and the top of the movable plate (62). Two placement plates (65) are fixedly connected to the inner wall of the movable plate (62). Several support plates (66) are fixedly connected to the inner wall of the upper frame (53).

6. The pantograph ice-breaking device for electric locomotives according to claim 5, characterized in that: Both of the placement plates (65) have a semi-circular block fixed at their bottom, and the multiple support plates (66) have a semi-circular block fixed at their top. The semi-circular surface of the support plate (66) is located on the movement trajectory of the semi-circular surface of the placement plate (65).

7. The pantograph ice-breaking device for electric locomotives according to claim 5, characterized in that: Both sides of the movable plate (62) are slidably connected to the inner wall of the upper frame (53), and there is a gap between the outer wall of the movable plate (62) and the circumferential surface of the support plate (66).