A de-icing device for a catenary maintenance vehicle

Abstract

The application discloses a kind of contact network maintenance vehicle's deicing equipment, including installation on contact network maintenance vehicle's cross shear type lifting frame, on the cross shear type lifting frame is connected with double-roller type deicing mechanism by multiple-stage oil cylinder, rotating type knocking mechanism and pair of wheel rolling mechanism are respectively arranged at the front and rear ends of the double-roller type deicing mechanism, the rotating type knocking mechanism, double-roller type deicing mechanism and pair of wheel rolling mechanism are sequentially arranged along the advancing direction of contact network maintenance vehicle, and the wire of contact network sequentially passes through rotating type knocking mechanism, double-roller type deicing mechanism and pair of wheel rolling mechanism.The ice layer or ice cone on the wire of contact network can be completely removed by the application, which reduces the labor intensity, improves the cleaning efficiency, and ensures good contact between the wire and the pantograph slide plate.The application is suitable for the technical field of ice layer or ice cone removal on the wire in railway contact network.

Description

Technical Field

[0001] This invention belongs to the technical field of overhead contact line maintenance and repair equipment, specifically, it relates to a de-icing device for an overhead contact line maintenance vehicle. Background Technology

[0002] In railway operations, one of the commonly used power supply network methods for electrified railways is the overhead contact system. Power is supplied to the train through the contact wire between the pantograph and the contact plate. Generally, conductivity is achieved through the graphite layer on the pantograph's contact plate. Currently, the main factor affecting power conduction is the contact effectiveness between the conductor and the graphite layer, especially in northern winters. Heavy snow and fog can cause ice to adhere to the conductor, forming icicles. This can lead to poor contact between the pantograph and the conductor, easily causing safety accidents. Consequently, a large number of workers are needed to remove the ice or icicles from the conductor section by section. A common method is to use sticks or similar objects to repeatedly tap the conductor to remove the ice or icicles. This method is not only labor-intensive but also ineffective, often resulting in incomplete removal of ice from certain sections of the conductor, leading to poor conductivity. Therefore, there is an urgent need for a de-icing device for overhead contact lines to completely remove ice or ice cones from the contact wires, reduce labor intensity, improve cleaning efficiency, and ensure good contact between the wires and the pantograph plate. Summary of the Invention

[0003] This invention provides a de-icing device for a catenary maintenance vehicle, which can completely remove ice or ice cones from the catenary conductors, reduce labor intensity, improve cleaning efficiency, and ensure good contact between the conductors and the pantograph plate.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A de-icing device for a catenary maintenance vehicle includes a scissor-type lifting frame installed on the catenary maintenance vehicle. A roller-type de-icing mechanism is connected to the scissor-type lifting frame via multi-stage hydraulic cylinders. A rotary striking mechanism and a roller rolling mechanism are respectively arranged at the front and rear ends of the roller-type de-icing mechanism. The rotary striking mechanism, the roller-type de-icing mechanism, and the roller rolling mechanism are arranged sequentially along the traveling direction of the catenary maintenance vehicle, and the catenary wire passes through the rotary striking mechanism, the roller-type de-icing mechanism, and the roller rolling mechanism in sequence.

[0006] Furthermore, the roller-type de-icing mechanism includes two opposing air-expanding jet rollers, the axis of each air-expanding jet roller extending along the length of the conductor, the two air-expanding jet rollers being rotatably mounted on two outer shells respectively, a drive mechanism being provided between each outer shell and the corresponding air-expanding jet roller, and an adjustment frame being connected to the two outer shells.

[0007] Furthermore, the air-expanding jet roller includes a jetting section constructed on the shaft body and extending spirally along its axial direction, and an air-expanding section extending spirally along the axial direction of the shaft body. The radial length of the air-expanding section is greater than the radial length of the jetting section, and the jetting section has multiple jetting chambers. Jet holes are opened all over the outer peripheral surface of the jetting section, and each jet hole is interconnected with the corresponding jetting chamber. The air-expanding section has multiple air-expanding chambers, and each jetting chamber and each air-expanding chamber are separated from each other. Independent jetting channels and air-expanding channels are constructed on the shaft body. The jetting channels are interconnected with each jetting chamber, and the air-expanding channels are interconnected with each air-expanding chamber. An adapter is fitted on the shaft body. The adapter is fixedly installed on the corresponding outer shell. The adapter has independent first air chambers and second air chambers. The first air chamber is interconnected with the jetting channel, and the second air chamber is interconnected with the air-expanding channel.

[0008] Furthermore, the radial length of the air-inflating jet roller increases from the rotary striking mechanism toward the roller rolling mechanism.

[0009] Furthermore, the drive mechanism includes a drive motor mounted on the outer casing, a drive wheel mounted on the output shaft of the drive motor, and a driven wheel mounted on the air-expanding jet roller. The drive wheel and the driven wheel are connected by a transmission chain.

[0010] Furthermore, the adjustment frame includes a mounting base connected to the output end of a multi-stage hydraulic cylinder. Two connecting arms are symmetrically arranged on the mounting base. The mounting base has two connecting rods arranged side by side. One end of each connecting arm is rotatably mounted on the corresponding connecting rod. The other end of the connecting arm is connected to a transition arm via a corner drive. The transition arm is connected to a corresponding outer casing. A hydraulic cylinder is mounted on the mounting base. Two hinged arms are hinged to the output end of the hydraulic cylinder. The end of each hinged arm away from the hydraulic cylinder is hinged to the corresponding connecting arm.

[0011] Furthermore, the rotary striking mechanism includes two opposing semi-gear rings, which are spliced ​​together to form a complete inner gear ring. A semi-annular assembly groove is constructed at the corresponding end of each outer casing, and the two semi-annular assembly grooves interlock to form a complete annular assembly groove. The semi-gear rings are assembled within the corresponding semi-annular assembly grooves. A driving gear and a driven gear are respectively installed on the same side end of the two air-expanding air-jet rollers, and the driving gear and driven gear mesh with the corresponding semi-gear rings. Multiple striking parts are evenly constructed at the end of each semi-gear ring away from the air-expanding air-jet roller.

[0012] Furthermore, each of the striking parts includes a mounting rod extending from the end face of the semi-gear ring toward a direction away from the semi-gear ring. Multiple striking rubber rods are connected at intervals along the extending direction on the mounting rod. Each striking rubber rod extends toward the wire direction, and the striking rubber rod strikes the wire as the mounting rod rotates with the semi-gear ring.

[0013] Furthermore, the roller rolling mechanism includes two opposing pneumatic rubber rollers, each of which is rotatably connected to a corresponding outer casing.

[0014] Furthermore, a plurality of rubber teeth are uniformly arranged along the circumference on the outer peripheral surface of each of the inflatable rubber wheels, and a transmission gear is respectively constructed at both ends of the axial direction of each inflatable rubber wheel, and the transmission gears on the same side of the two inflatable rubber wheels mesh with each other; the shaft tube body of each inflatable rubber wheel is rotatably connected to the connecting seat, and the connecting seat is fixedly connected to the corresponding outer shell.

[0015] The present invention, by employing the aforementioned structure, achieves the following technological advancements compared to existing technologies: When de-icing operations are required on the overhead contact line conductors, the rotary striking mechanism, the roller de-icing mechanism, and the wheel rolling mechanism are sequentially passed through one end of the conductor to be de-iced. Then, the overhead contact line maintenance vehicle is controlled to move along the rails. During this movement, the rotary striking mechanism rotates circumferentially along the conductor and strikes it, loosening or removing some of the ice and ice cones. Next, the roller de-icing mechanism rolls the conductor, removing most of the ice and ice cones. Finally, the wheel rolling mechanism removes any remaining ice residue, ensuring a clean conductor surface and good contact between the conductor and the graphite layer on the pantograph plate. In summary, the present invention can completely remove ice or ice cones from the overhead contact line conductors, reducing labor intensity and improving removal efficiency, while ensuring good contact between the conductor and the pantograph plate. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention after it is installed on the overhead contact line maintenance vehicle according to an embodiment of the invention;

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram from another angle of an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection between the roller de-icing mechanism and the adjusting frame in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the adjustment frame according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the air-expanding jet rubber roller in the roller-type de-icing mechanism of this invention.

[0024] Figure 7 This is an axial structural cross-sectional view of the air-expanding jet rubber roller in the roller-type de-icing mechanism of this invention.

[0025] Figure 8 This is a schematic diagram of the structure of the rotary striking mechanism installed at the front end of the roller de-icing mechanism according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of the rotary striking mechanism and the roller de-icing mechanism after being separated according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of the rotary striking mechanism of the present invention after two half-tooth rings are spliced ​​together to form a complete internal tooth ring.

[0028] Figure 11 This is a schematic diagram of the roller rolling mechanism according to an embodiment of the present invention.

[0029] Components marked: 100-Contact wire maintenance vehicle, 200-Scissor-type lifting frame, 300-Roller-type de-icing mechanism, 301-Shaft body, 302-Jet section, 303-Jet chamber, 304-Air expansion section, 305-Air expansion chamber, 306-Jet channel, 307-Air expansion channel, 308-Adapter, 309-First air chamber, 310-Second air chamber, 311-Outer casing, 312-Drive motor, 313-Driving wheel, 314-Driven wheel, 315-Transmission chain, 316-Semi-circular assembly slot, 400- Rotary striking mechanism, 401-half gear ring, 402-mounting rod, 403-striking rubber rod, 404-drive gear, 405-driven gear, 500-rolling mechanism for wheels, 501-pneumatic rubber wheel, 502-rubber teeth, 503-transmission gear, 504-shaft tube body, 505-connecting seat, 600-adjusting bracket, 601-mounting seat, 602-connecting rod, 603-connecting arm, 604-angle drive component, 605-adapter arm, 606-hydraulic cylinder, 607-articulated arm, 700-multi-stage cylinder. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0031] This invention discloses a de-icing device for a catenary maintenance vehicle, such as... Figure 1-11As shown, the system includes a rotary striking mechanism 400, a roller de-icing mechanism 300, and a roller pressing mechanism 500. A scissor-type lifting frame 200 is installed on the overhead contact line maintenance vehicle 100. A vertically arranged multi-stage hydraulic cylinder 700 is installed at the upper end of the scissor-type lifting frame 200, and the output end of the multi-stage hydraulic cylinder 700 is connected to the roller de-icing mechanism 300. The rotary striking mechanism 400 and the roller pressing mechanism 500 are respectively located at the front and rear ends of the roller de-icing mechanism 300. The rotary striking mechanism 400, roller de-icing mechanism 300, and roller pressing mechanism 500 are arranged sequentially along the traveling direction of the overhead contact line maintenance vehicle 100, and the contact wires pass sequentially through the rotary striking mechanism 400, roller de-icing mechanism 300, and roller pressing mechanism 500. The working principle and advantages of this invention are as follows: When de-icing of the contact wire is required, the rotary striking mechanism 400, the roller de-icing mechanism 300, and the wheel rolling mechanism 500 are sequentially passed through one end of the wire to be de-iced. Then, the contact wire maintenance vehicle 100 is controlled to move on the rail. During the movement, the rotary striking mechanism 400 rotates around the circumference of the wire and strikes it, loosening the ice and ice cones on the wire, or causing some of the ice and ice cones to fall off. Then, the roller de-icing mechanism 300 rolls the wire, causing most of the ice and ice cones to detach from the wire. Finally, the wheel rolling mechanism 500 removes the remaining ice residue from the wire, making the wire surface clean and ensuring good contact between the wire and the graphite layer on the pantograph plate. In summary, this invention can completely remove the ice or ice cones from the contact wire, reducing labor intensity and improving cleaning efficiency, while ensuring good contact between the wire and the pantograph plate.

[0032] As a preferred embodiment of the present invention, such as Figure 2-4As shown, the roller-type de-icing mechanism 300 includes two opposing air-expanding jet rollers. The axis of each air-expanding jet roller extends along the length of the conductor. The two air-expanding jet rollers are rotatably mounted on two outer housings 311. A drive mechanism is provided between each outer housing 311 and the corresponding air-expanding jet roller, and an adjusting frame 600 is connected to the two outer housings 311. In this embodiment, the open ends of the two outer housings 311 are positioned opposite each other to prevent ice chips and ice shards from splashing. The working principle and advantages of this embodiment are as follows: the conductor is located between the two air-expanding jet rollers. These two air-expanding jet rollers are driven to rotate by their respective drive mechanisms, causing them to rotate relative to each other. This allows the two air-expanding jet rollers to crush ice layers and ice cones on the conductor located between them. As the roller-type de-icing mechanism 300 moves forward with the contact wire maintenance vehicle 100, the crushed ice layers and ice cones on the conductor are removed. Furthermore, this embodiment can inflate and deflate the roller-type de-icing mechanism 300 according to the thickness of the ice layer or the degree of adhesion of the ice cone, so that the gap between the two air-expanding jet rollers becomes smaller or larger, thereby achieving the purpose of crushing the ice layer, ice cone, etc. on the wire; and for more stubborn frozen deposits, hot air is continuously sprayed onto the frozen deposits through the air-expanding jet rollers, and with the pressure of the two air-expanding jet rollers, the stubborn frozen deposits are effectively removed.

[0033] As a preferred embodiment of the present invention, such as Figure 6-7As shown, the air-expanding air-jet roller includes a shaft body 301, an air jet section 302, and an air-expanding section 304. The air jet section 302 is constructed on the shaft body 301 and extends spirally along the axial direction of the shaft body 301. The air-expanding section 304 also extends spirally along the axial direction of the shaft body 301, and its radial length is greater than that of the air jet section 302. Thus, the air-expanding section 304 of the air-expanding air-jet roller is positioned as a spiral groove extending along its axial direction. This ensures that when two air-expanding air-jet rollers are rolling the conductor relative to each other, the air-expanding section 304 will not directly contact the conductor. Furthermore, under the strong blowing force of hot air, ice fragments and ice chips will not remain in the spiral groove. When hot air is not used for jetting, some of the ice fragments and ice chips formed by the crushing of ice layers and ice cones are gradually discharged through the spiral groove and gradually detach from the air-expanding air-jet roller. In this embodiment, the jet section 302 has a continuous jet chamber or multiple mutually spaced jet chambers 303. When a jet chamber is used, it extends spirally along the axial direction of the shaft body 301; when multiple mutually spaced jet chambers 303 are used, they are spirally spaced along the axis of the shaft body 301. In this embodiment, the outer circumferential surface of the jet section 302 is covered with jet holes, and each jet hole is interconnected with a corresponding jet chamber 303. This allows hot air at a certain pressure to enter each jet chamber 303 and then be ejected from the jet holes connected to the jet chambers 303. This melts localized ice layers and / or ice cones on the conductor, weakening the ice layer and / or ice cones. Thus, when two air-expanding jet rollers press against the ice layer and ice cones on the conductor, the ice layer and ice cones are more easily detached from the conductor. In this embodiment, the air-expanding section 304 has multiple air-expanding chambers 305, and each jet chamber 303 and each air-expanding chamber 305 are mutually spaced. This embodiment achieves the goal of increasing the radial length of the air-inflating air-jet rollers by synchronously inflating each air-inflating chamber 305, thereby changing the gap between the two air-inflating air-jet rollers and reducing the gap between them. This increases the pressure exerted by the two air-inflating air-jet rollers on ice layers, ice cones, etc., on the conductor, promoting the removal of ice layers, ice cones, etc. In this embodiment, an air-jet channel 306 and an air-inflating channel 307 are constructed on the shaft body 301. The air-jet channel 306 and the air-inflating channel 307 are independent and not interconnected. The air-jet channel 306 is connected to each air-jet chamber 303, and the air-inflating channel 307 is connected to each air-inflating chamber 305. In this embodiment, an adapter 308 is fitted onto the shaft body 301. The adapter 308 is fixedly installed on the corresponding outer casing 311. The adapter 308 has a first air chamber 309 and a second air chamber 310 that are independent of each other. The first air chamber 309 is connected to the jet channel 306, and the second air chamber 310 is connected to the air expansion channel 307.The working principle and advantages of this embodiment are as follows: When it is necessary to heat the ice layer, ice cone, etc. on the conductor, hot gas with a certain pressure enters the jet channel 306 through the first air chamber 309, and then enters the main jet chamber or each jet chamber 303 through the jet channel 306, so that the hot gas is ejected through each jet hole and sprayed onto the conductor. Under the pressure of the hot gas and the expanding jet rollers, the strength of the ice layer, ice cone, etc. changes, thereby achieving the purpose of detaching from the conductor. When it is necessary to change the gap between the two expanding jet rollers, the gap between the two expanding jet rollers is generally reduced. Pressurized gas enters the air expansion channel 307 through the second air chamber 310, and then enters each air expansion chamber 305 through the air expansion channel 307, thereby causing the expanding jet rollers to expand. In this way, the gap between the two expanding jet rollers becomes smaller, so that the pressure and squeezing force of the two expanding jet rollers on the ice layer and ice cone are increased simultaneously, improving the breaking and detachment effect of the ice layer and ice cone. When it is necessary to increase the gap between the two expansion air-jet rollers, the adhesion strength of the ice layer and ice cone is relatively small. That is, the gas in each air expansion chamber 305 is released synchronously, and the gas is discharged from the second air chamber 310 through the air expansion channel 307. In this way, the radial length of the expansion air-jet roller is reduced, thereby achieving the purpose of increasing the gap between the two expansion air-jet rollers.

[0034] In a preferred embodiment of the present invention, in order to facilitate the gradual introduction of the wire between the two expanding air-jet rollers and to avoid the wire being unable to effectively enter the gap between the two expanding air-jet rollers due to excessively thick ice or excessively large ice cones, the following measures are taken: the radial length of the expanding air-jet rollers increases from the rotary striking mechanism 400 towards the roller rolling mechanism 500. This results in a larger diameter at the inlet end of the two expanding air-jet rollers, which facilitates the introduction of the wire, and a smaller diameter at the outlet end of the two expanding air-jet rollers, which facilitates the sufficient rolling and crushing of ice, ice cones, etc. on the wire.

[0035] As a preferred embodiment of the present invention, such as Figure 4 As shown, the drive mechanism includes a drive motor 312, a drive wheel 313, a driven wheel 314, and a transmission chain 315, wherein both the drive wheel 313 and the driven wheel 314 are sprockets. In this embodiment, the drive motor 312 is mounted on the outer casing 311, the drive wheel 313 is coaxially mounted on the output shaft of the drive motor 312, and the driven wheel 314 is coaxially mounted on the shaft body 301 of the air-inflating air-jet roller. The drive wheel 313 and the driven wheel 314 are connected by the transmission chain 315. Thus, the drive motor 312 drives the drive wheel 313 to rotate, causing the driven wheel 314 to rotate via the transmission chain 315, which in turn drives the air-inflating air-jet roller to rotate via the shaft body 301.

[0036] As a preferred embodiment of the present invention, such as Figure 4-5As shown, the adjustment frame 600 includes a mounting base 601, which is fixedly connected to the output end of the multi-stage hydraulic cylinder 700. The mounting base 601 has two parallel connecting rods 602, and two connecting arms 603 are symmetrically arranged on the mounting base 601. One end of each connecting arm 603 is rotatably mounted on the corresponding connecting rod 602, and the other end of the connecting arm 603 is connected to an adapter arm 605 via a corner drive 604. The adapter arm 605 is connected to the corresponding outer cover 311. In this embodiment, a hydraulic cylinder 607 is mounted on the mounting base 601. The output end of the hydraulic cylinder 607 is hinged to two hinge arms 607, and the end of each hinge arm 607 away from the hydraulic cylinder 607 is hinged to the corresponding connecting arm 603. In this embodiment, the corner drive 604 is generally a stepper motor. The stepper motor changes the angular displacement of the adapter arm 605, thereby causing the two air-expanding jet rollers to open under the drive of the stepper motor. The working principle and advantages of this embodiment are as follows: This embodiment uses the extension and retraction of the hydraulic cylinder 607 to drive the two hinged arms 607, causing these two hinged arms 607 to move the connecting arm 603 closer or further apart. This, in turn, causes the two transition arms 605 to move the two air-expanding air-jet rollers closer or further apart. After adjusting the distance between the two air-expanding air-jet rollers, the roller gap is adjusted by inflating and deflating the air-expanding air-jet rollers. When it is necessary to remove frozen deposits from components other than conductors, such as insulators, tie rods, or droppers of the contact network, the hydraulic cylinder 607 drives the two air-expanding air-jet rollers further apart, and then the angle drive 604 causes the two air-expanding air-jet rollers to open at a certain angle. This allows for the removal of ice deposits from the contact network supports, insulators, or other components. In this embodiment, the two air-expanding air-jet rollers can also be adjusted to face downwards, and the distance between the two air-expanding air-jet rollers can be adjusted so that the single rail of the railway is located between the two air-expanding air-jet rollers, thereby realizing the removal of foreign objects, frozen deposits and other substances on the railway.

[0037] As a preferred embodiment of the present invention, such as Figure 8-10As shown, the rotary striking mechanism 400 includes two opposing semi-gear rings 401, which are spliced ​​together to form a complete internal gear ring. A semi-annular mounting groove 316 is constructed at the corresponding end of each outer casing 311, and these two semi-annular mounting grooves 316 interlock to form a complete annular mounting groove. The semi-gear rings 401 are assembled within the corresponding semi-annular mounting grooves 316. In this embodiment, a driving gear 404 and a driven gear 405 are respectively installed on the same side of the two air-expanding air-jet rollers. The driving gear 404 and the driven gear 405 mesh with the corresponding semi-gear rings 401. Multiple striking parts are evenly constructed at the end of each semi-gear ring 401 away from the air-expanding air-jet roller. The working principle and advantages of this embodiment are as follows: controlling the operation of the hydraulic cylinder 607 causes the two outer shells 311 and the air-expanding jet roller to move closer to each other. The shaft body 301 of the air-expanding jet roller, which is equipped with the drive gear 404, is driven to rotate by the corresponding drive motor 312. Thus, when the two semi-annular assembly grooves 316 are engaged with each other, they form a complete annular assembly groove. Moreover, at this time, the two semi-gear rings 401 are spliced ​​together to form a complete internal gear ring. In order to ensure that the two semi-gear rings 401 have a certain connection strength after splicing, each free end of the two semi-gear rings 401 is magnetic, and the magnetic properties of the free ends of the spliced ​​semi-gear rings 401 are opposite. This makes the free ends of the two semi-gear rings 401 stick together, and then the internal gear ring rotates under the drive of the drive gear 404. In this embodiment, the driven gear 405 is rotatably connected to the corresponding shaft body 301. Thus, during the rotation of the shaft body 301, the driven gear 405 is unaffected, and the driven gear 405 serves to support the internal gear ring. During the rotation of the internal gear ring, the striking part mounted on it rotates accordingly, thereby striking the wire to loosen or remove ice, icicles, etc., from the wire.

[0038] As a preferred embodiment of the present invention, such as Figure 9-10As shown, each striking part in this embodiment includes a mounting rod 402 and a plurality of striking rubber rods 403. The mounting rod 402 extends from the end face of the semi-gear ring 401 toward a direction away from the semi-gear ring 401. The plurality of striking rubber rods 403 in this embodiment are installed at intervals on the mounting rod 402 along the extension direction of the mounting rod 402. Each striking rubber rod 403 extends toward the wire and can contact the wire when it extends to the wire. In this way, the striking rubber rods 403 strike the wire as the mounting rod 402 rotates with the semi-gear ring 401. When a set of striking rubber rods 403 strikes the wire, the striking rubber rods 403 deform to pass through the wire, thereby avoiding obstruction of the striking of the wire by another set of striking rubber rods 403. During the striking of the wire by the striking rubber rods 403, ice, ice cones, etc. on the wire are loosened, broken, or detached. When ice, icicles, or other debris are not firmly attached to the conductor, a rotary tapping mechanism 400 can be used, or the rotary tapping mechanism 400 can be disassembled and the ice and debris can be removed using only the roller de-icing mechanism 300.

[0039] As a preferred embodiment of the present invention, such as Figure 3 , 11As shown, the roller rolling mechanism 500 includes two opposing inflatable rubber rollers 501, each of which is rotatably connected to a corresponding outer casing 311. Specifically, multiple rubber teeth 502 are formed on the outer circumferential surface of each inflatable rubber roller 501, and these rubber teeth 502 are evenly arranged along the circumference of the inflatable rubber roller 501. A transmission gear 503 is formed at both axial ends of each inflatable rubber roller 501, and the transmission gears 503 on the same side of the two inflatable rubber rollers 501 mesh with each other. In this embodiment, the shaft tube body 504 of each inflatable rubber roller 501 is rotatably connected to a connecting seat 505, and the connecting seat 505 is fixedly connected to the corresponding outer casing 311. In this embodiment, the two inflatable rubber rollers 501 can rotate passively or actively. When passively rotating, the two rollers 501 are inflated, causing their outer surfaces to elastically press against the conductor. As the overhead contact line maintenance vehicle 100 moves, the rollers roll over the conductor, removing any remaining ice or debris. When actively driven, a motor is mounted on a connecting seat 505. The motor's output shaft is connected to one of the shaft tube bodies 504. The motor drives one roller 501 to rotate, and under the action of the transmission gear 503, the other roller 501 rotates relative to it. This embodiment uses rubber teeth 502 primarily to prevent the rollers 501 from slipping on the conductor, and the teeth also bite and dislodge frozen debris from the conductor. In this embodiment, if the frozen deposits on the conductor are easy to remove, the entire roller rolling mechanism 500 can be disassembled and no longer needed.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A de-icing device for a catenary maintenance vehicle, characterized in that: The system includes a scissor-type lifting frame installed on a catenary maintenance vehicle. A roller-type de-icing mechanism is connected to the scissor-type lifting frame via a multi-stage hydraulic cylinder. A rotary striking mechanism and a roller rolling mechanism are respectively installed at the front and rear ends of the roller-type de-icing mechanism. The rotary striking mechanism, roller-type de-icing mechanism, and roller rolling mechanism are arranged sequentially along the travel direction of the catenary maintenance vehicle, and the catenary wire passes through the rotary striking mechanism, roller-type de-icing mechanism, and roller rolling mechanism in sequence. The roller-type de-icing mechanism includes two oppositely arranged air-expanding jet rollers. The axis of each air-expanding jet roller extends along the length of the conductor. The two air-expanding jet rollers are rotatably mounted on two outer shells. A drive mechanism is provided between each outer shell and the corresponding air-expanding jet roller, and an adjustment frame is connected to the two outer shells. The air-expanding jet roller includes a jetting section constructed on the shaft body and extending spirally along its axial direction, and an air-expanding section extending spirally along the axial direction of the shaft body. The radial length of the air-expanding section is greater than the radial length of the jetting section, and the jetting section has multiple jetting chambers. Jet holes are opened all over the outer peripheral surface of the jetting section, and each jet hole is interconnected with a corresponding jetting chamber. The air-expanding section has multiple air-expanding chambers, and each jetting chamber and each air-expanding chamber are isolated from each other. Independent jetting channels and air-expanding channels are constructed on the shaft body. The jetting channels are interconnected with each jetting chamber, and the air-expanding channels are interconnected with each air-expanding chamber. An adapter is fitted on the shaft body. The adapter is fixedly installed on a corresponding outer shell. The adapter has an independent first air chamber and a second air chamber. The first air chamber is interconnected with the jetting channel, and the second air chamber is interconnected with the air-expanding channel.

2. The de-icing equipment for a catenary maintenance vehicle according to claim 1, characterized in that: The radial length of the air-inflating jet roller increases from the rotary striking mechanism toward the roller rolling mechanism.

3. The de-icing equipment for a catenary maintenance vehicle according to claim 1, characterized in that: The drive mechanism includes a drive motor mounted on the outer casing, a drive wheel mounted on the output shaft of the drive motor, and a driven wheel mounted on the air-expanding jet roller. The drive wheel and the driven wheel are connected by a transmission chain.

4. The de-icing equipment for a catenary maintenance vehicle according to claim 1, characterized in that: The adjustment frame includes a mounting base connected to the output end of a multi-stage hydraulic cylinder. Two connecting arms are symmetrically arranged on the mounting base. The mounting base has two connecting rods arranged side by side. One end of each connecting arm is rotatably mounted on the corresponding connecting rod. The other end of the connecting arm is connected to a transition arm via a corner drive. The transition arm is connected to a corresponding outer casing. A hydraulic cylinder is mounted on the mounting base. Two hinged arms are hinged to the output end of the hydraulic cylinder. The end of each hinged arm away from the hydraulic cylinder is hinged to the corresponding connecting arm.

5. The de-icing equipment for a catenary maintenance vehicle according to claim 1, characterized in that: The rotary striking mechanism includes two opposing semi-gear rings, which are spliced ​​together to form a complete inner gear ring. A semi-annular assembly groove is constructed at the corresponding end of each outer casing, and the two semi-annular assembly grooves interlock to form a complete annular assembly groove. The semi-gear rings are assembled within the corresponding semi-annular assembly grooves. A driving gear and a driven gear are respectively installed on the same side end of the two air-expanding air-jet rollers, and the driving gear and driven gear mesh with the corresponding semi-gear rings. Multiple striking parts are evenly constructed at the end of each semi-gear ring away from the air-expanding air-jet roller.

6. The de-icing equipment for a catenary maintenance vehicle according to claim 5, characterized in that: Each of the striking parts includes a mounting rod extending from the end face of the half-tooth ring toward a direction away from the half-tooth ring. Multiple striking rubber rods are connected at intervals along the extending direction on the mounting rod. Each striking rubber rod extends toward the wire direction, and the striking rubber rod strikes the wire as the mounting rod rotates with the half-tooth ring.

7. The de-icing equipment for a catenary maintenance vehicle according to claim 1, characterized in that: The roller rolling mechanism includes two oppositely arranged pneumatic rubber wheels, each of which is rotatably connected to a corresponding outer casing.

8. The de-icing equipment for a catenary maintenance vehicle according to claim 7, characterized in that: Each of the inflatable rubber wheels has a plurality of rubber teeth evenly arranged along its circumference on its outer peripheral surface. A transmission gear is constructed at both ends of the axial direction of each inflatable rubber wheel, and the transmission gears on the same side of the two inflatable rubber wheels mesh with each other. The shaft tube body of each inflatable rubber wheel is rotatably connected to the connecting seat, and the connecting seat is fixedly connected to the corresponding outer shell.

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