Profiling air knife device for deicing overhead line system cantilever

Abstract

The utility model relates to the technical field of railway vehicle contact network maintenance devices, in particular to a profiling air knife device for deicing a cantilever of a contact network, which comprises a knife disc fixed on a flange plate of a small mechanical arm of a deicing device through a mounting bolt, and a profiling air knife mechanism for deicing the contact network is mounted on the knife disc. According to the utility model, the three profiling deicing knives with different structures and functions are used, so that the ice layer covering the contact line can be removed more efficiently. The operation process mainly comprises the following steps that firstly, the deicing knife removes large-range icing on the surface of the contact line, then the ice melting air knife melts and blows away the residual icing, and finally the cooling air knife cools the contact line, so that secondary icing is avoided, and the deicing operation is completed. The industrial camera monitors working conditions in real time during operation and transmits monitoring data to a terminal, and the deicing device is simple in structure, efficient in operation, simple to operate, safe and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle contact network maintenance devices, in particular to a contoured air knife device for deicing a contact network arm. Background Art

[0002] At present, the sustained and stable development of electrified railways has made great contributions to promoting national economic construction and national defense construction. However, due to the low winter temperature in northwestern my country, the contact network is seriously covered with icing, which will have a major negative impact on the contact between the catenary, power supply, arc drawing, and support and hoisting, and seriously threaten the safety of railway operations.

[0003] Existing deicing methods primarily fall into three categories: mechanical deicing, natural deicing, and thermal deicing. Mechanical and natural deicing methods can easily lead to conductor fatigue and mechanical damage. Thermal deicing, however, utilizes a short-circuit method to create a closed circuit between the upstream and downstream power supply arms of a traction substation through a specific wiring arrangement. This method rapidly melts ice and has gained widespread application. Currently, my country primarily adopts a strengthened regulatory approach to addressing railway catenary icing. Specifically, when temperatures fluctuate around 0°C, nighttime skylight maintenance is employed to ensure the effective removal of lightly iced catenary structures. Alternatively, manual deicing can be employed. During train breaks, the uninhibited pantographs on top of the trains are continuously operated back and forth to scrape ice off the catenary. While these methods are effective in deicing the catenary, they require significant manpower and locomotive resources. Therefore, developing an online deicing solution that does not disrupt the normal operation of high-speed railways is of great engineering value. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a contoured air knife device for de-icing the contact network arm, combining the advantages of both mechanical de-icing and thermal de-icing methods to solve the problems of low efficiency, high manual labor intensity, great damage to the contact line, and easy secondary icing of the current de-icing scheme proposed in the above background.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions: a contoured air knife device for de-icing the contact network arm, comprising a cutter disc fixed to the flange of the small mechanical arm of the de-icing device by mounting bolts, and a contoured air knife mechanism for de-icing the contact network is installed on the cutter disc.

[0006] The contoured air knife mechanism includes a knife holder installed on the knife disc, and the U-shaped knife groove opened on the knife holder is equipped with a deicing blade, an ice-melting air knife and a cooling air knife in sequence, and the deicing blade, the ice-melting air knife and the cooling air knife are fixed in the knife holder by bolts.

[0007] Preferably, the de-icing blade, ice-melting air knife and cooling air knife are all arc-shaped structures as a whole, and the blade portion of the de-icing blade protrudes higher than the ice-melting air knife and the cooling air knife.

[0008] Preferably, the air inlets on the ice-melting air knife and the cooling air knife are aligned with the cutting edge of the deicing blade from both sides of the deicing blade.

[0009] Preferably, an angle adjuster is mounted on the cutter disc via bolts, and the tool holder is mounted on the angle adjuster via bolts.

[0010] Preferably, clamping blocks are symmetrically installed on both sides of the top of the cutter disc, and industrial detection cameras for real-time monitoring of deicing conditions are installed in the clamping slots provided on the clamping blocks.

[0011] Preferably, the cutter disc is fixed to the flange of the external de-icing device small mechanical arm by four bolts.

[0012] By means of the above technical solution, the utility model provides a contoured air knife device for deicing catenary arms, which has at least the following beneficial effects:

[0013] 1. The utility model avoids manual work and the hazard of falling ice during the de-icing process, which is safer and more efficient.

[0014] 2. The utility model is equipped with an industrial camera that can monitor the de-icing operation in real time, so as to make timely adjustments to the angle of the de-icing blade and the pressure between it and the contact line, and make reasonable adjustments to the temperature of the ice-melting air knife and the cooling rate of the cooling air knife to minimize damage to the contact line and optimize the de-icing efficiency.

[0015] 3. The utility model combines mechanical deicing method and thermal melting deicing method to reduce damage to the contact line.

[0016] 4. After the de-icing operation is completed, the contact line is cooled by a cooling air knife to avoid secondary icing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0018] In the attached figure:

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a rear view structural diagram of the utility model;

[0021] Figure 3This is a schematic diagram of the overall structure of the working tool of the utility model.

[0022] In the figure: 1. Cutter disc; 2. Contour air knife mechanism; 201. Cutter holder; 202. De-icing blade; 203. De-icing air knife; 204. Cooling air knife; 205. Bolt; 3. Angle adjuster; 4. Clamp; 5. Industrial inspection camera. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] Based on the existing problems of low efficiency, high labor intensity, great damage to the contact line and easy secondary icing of the current deicing scheme, this embodiment provides a contoured air knife device for deicing the contact network arm, please refer to Figure 1-Figure 3 The present invention provides a contoured air knife device for deicing the catenary arm of a contact network. This device improves deicing efficiency, reduces damage to the contact wire, and prevents secondary icing. The contoured air knife device for deicing the contact wire arm comprises a cutterhead 1 secured to a flange of a small robotic arm of the deicing device via mounting bolts. Contour air knife mechanisms 2 for deicing the contact wire are mounted on the cutterhead 1. Three sets of contoured air knife mechanisms 2 sequentially de-ice the contact wire, while timely adjusting the robotic arm's operating posture, the angle of the deicing blade 202, and the temperature of the ice-melting air knife 203.

[0026] Since the current deicing scheme has low efficiency, high labor intensity, great damage to the contact line, and is prone to secondary icing, the device is provided with a contoured air knife mechanism 2, which includes a knife holder 201 installed on the knife disc 1, and a U-shaped knife groove opened on the knife holder 201 is equipped with a deicing blade 202, an ice-melting air knife 203 and a cooling air knife 204 in sequence, and the deicing blade 202, the ice-melting air knife 203 and the cooling air knife 204 are fixed in the knife holder 201 by bolts 205. The deicing blade 202, the ice-melting air knife 203 and the cooling air knife 204 are integrally formed. It is an arc-shaped structure, and the blade of the de-icing blade 202 protrudes higher than the ice-melting air knife 203 and the cooling air knife 204. The air inlets on the ice-melting air knife 203 and the cooling air knife 204 are aligned with the blade of the de-icing blade 202 from both sides of the de-icing blade 202. The de-icing blade 202 is used to mechanically de-ice the ice layer on the surface of the contact line to remove large-scale ice on the surface of the contact line. Then, the ice-melting air knife 203 adopts a thermal de-icing method to melt and blow away the residual ice on the surface of the contact line. Finally, the cooling air knife 204 is used to cool the contact line to avoid secondary icing and complete the de-icing operation.

[0027] Since the contact line angles are different, the de-icing angle of the contour air knife mechanism 2 needs to be adjusted. Therefore, the device is equipped with an angle adjuster 3 on the cutter disc 1 through a bolt 205, and the tool holder 201 is installed on the angle adjuster 3 through a bolt 205. The angle of the contour air knife mechanism 2 is adjusted through the angle adjuster 3, which is more convenient for de-icing.

[0028] Example 2

[0029] On the basis of Example 1, Figure 1-Figure 3 As shown, in order to more intuitively observe the de-icing situation of the ice layer on the contact line surface, the device is symmetrically installed with blocks 4 on both sides of the top of the cutter head 1, and the card slots opened on the blocks 4 are installed with industrial detection cameras 5 for real-time monitoring of the de-icing situation. The de-icing operation is monitored in real time by the industrial detection camera 5. Through on-site evaluation, the angle of the de-icing blade 202 and the pressure between the de-icing blade 202 and the contact line are adjusted in time, and the temperature of the ice-melting air knife 203 and the cooling rate of the cooling air knife 204 are reasonably adjusted to minimize the damage to the contact line and optimize the de-icing efficiency.

[0030] Example 3

[0031] On the basis of Example 1, Figure 3 As shown, the utility model adopts two sets of devices to form a de-icing operation unit module, which is installed on the track translation plate to perform de-icing operations on the contact line in a back-to-back posture. The advantage of this installation method is that the ice-melting air knife 203 can evenly heat the contact line and melt the residual ice layer that cannot be scraped off by the de-icing blade 202 in all directions. At the same time, the cooling air knife 204 can also contact the contact line in all directions to perform rapid cooling treatment.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contoured air knife device for deicing a catenary arm, comprising a cutter head (1), characterized in that: The cutter head (1) is provided with a contoured air knife mechanism (2) for deicing the contact network; The contouring air knife mechanism (2) comprises a knife holder (201) mounted on a knife disc (1); a deicing blade (202), an ice-melting air knife (203), and a cooling air knife (204) are sequentially mounted in a U-shaped knife groove provided on the knife holder (201); and the deicing blade (202), the ice-melting air knife (203), and the cooling air knife (204) are fixed to the knife holder (201) by bolts (205).

2. The contoured air knife device for deicing catenary arms according to claim 1, characterized in that: The de-icing blade (202), the ice-melting air knife (203) and the cooling air knife (204) are all of arc-shaped structures as a whole, and the blade portion of the de-icing blade (202) protrudes higher than the ice-melting air knife (203) and the cooling air knife (204).

3. The contoured air knife device for deicing catenary arms according to claim 2, characterized in that: The air ports on the ice-melting air knife (203) and the cooling air knife (204) are aligned with the cutting edge of the ice-melting blade (202) from both sides of the ice-melting blade (202).

4. The contoured air knife device for deicing catenary arms according to claim 1, characterized in that: An angle adjuster (3) is mounted on the cutter disc (1) via bolts (205), and the cutter holder (201) is mounted on the angle adjuster (3) via bolts (205).

5. The contoured air knife device for deicing catenary arms according to claim 1, characterized in that: Clamping blocks (4) are symmetrically mounted on both sides of the top of the cutter head (1), and an industrial detection camera (5) for real-time monitoring of deicing conditions is mounted in a clamping slot provided on the clamping block (4).

6. The contoured air knife device for deicing catenary arms according to claim 1, characterized in that: The cutter disc (1) is fixed to the flange of the external small mechanical arm of the deicing device by four bolts (205).

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