Passive and active deicing device and system for overhead line system

Abstract

The invention relates to a passive and active deicing device and system for a contact network. The passive and active deicing device for the contact network comprises a support assembly, a wire limiting plate, a transmission box, a deicing propeller and a windmill. The support assembly is used for being fixedly installed on a train, and a motor is fixedly arranged on the support assembly. The electric wire limiting plate and the transmission case are both mounted on the bracket assembly, and the electric wire limiting plate is used for limiting an electric wire; gear sets which are meshed with each other are arranged in the transmission box; and the motor and the windmill are respectively connected with one gear in the gear set. And the deicing propeller is rotationally mounted on the transmission case. According to the technical scheme, the motor and the windmill are used for driving the deicing propellers to achieve the active deicing mode and the passive deicing mode, in the passive deicing process, wind energy brought by the train is used as a driving source, and energy consumption needed by deicing is greatly reduced. And the electric wire is knocked and deiced through the rotation of the deicing propeller, and the deicing structure is simple.

Description

Technical Field

[0001] The present invention relates to the field of rail transit, and in particular to a passive and active catenary de-icing device and system. Background Art

[0002] Due to geographical and climatic reasons, high-speed rail lines also extend to various climate regions, and catenary icing is very likely to occur in many areas where high-speed rail lines are in service. Catenary icing will seriously affect the safety of train operation. When the pantograph draws current from the catenary, arcs may be generated due to the poor electrical conductivity and excessive surface roughness of the ice shell. In severe cases, ablation may even occur, resulting in burns and breaks of the catenary wires, including mechanical damage to the carbon skate caused by icing, etc., causing a large-scale suspension of high-speed rail trains. It can be seen that catenary icing is a huge challenge for the continuous, stable and safe operation of electrified high-speed railways. The existing catenary de-icing methods are mostly mechanical de-icing, supplemented by a small number of ice melting devices. However, due to the high energy consumption of the de-icing devices, when a catenary icing disaster occurs, not only a large amount of manpower and material resources are required, but it is also very difficult to complete the de-icing task in a short time. Therefore, a simple and low-energy catenary de-icing method is extremely urgent for major railway companies. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] The present invention provides a passive and active catenary de-icing device and system, aiming to solve the technical problem of high energy consumption of the existing de-icing devices.

[0005] (2) Technical Solutions

[0006] To solve the above problems, the present invention provides a passive and active catenary de-icing device, which includes: a support assembly, a wire limiting plate, a transmission box, a de-icing propeller and a windmill;

[0007] The support assembly is used for fixed installation on the train, and a motor is fixedly arranged on the support assembly;

[0008] Both the wire limiting plate and the transmission box are installed on the support assembly. The wire limiting plate is used for limiting the wire; a gear set that meshes with each other is arranged in the transmission box; the motor and the windmill are respectively connected to one of the gears in the gear set;

[0009] The de-icing propeller is rotatably installed on the transmission box, and the de-icing propeller is connected to one of the gears in the gear set; both the windmill and the motor can drive the de-icing propeller to rotate through the gear set; the blades of the de-icing propeller can de-ice the wire.

[0010] Preferably, the gear set comprises a first driving gear, a second driving gear and a driven gear which are all rotatably mounted in the transmission box and meshed in sequence;

[0011] The first driving gear is connected to the windmill, the second driving gear is connected to the output shaft of the motor, and the driven gear is connected to the deicing propeller.

[0012] Preferably, the wire limiting plate comprises a pair of rotating rods and a pair of arc plates;

[0013] One end of the rotating rod is rotatably mounted on the bracket assembly, and the arc plate is fixedly mounted on the other end of the rotating rod. The two arc plates can be butted against each other to form an arc-shaped limiting groove, and the arc-shaped limiting groove is used to limit the wire.

[0014] Preferably, the diameter of the opening of the first end of the arc-shaped limiting groove is larger than the diameter of the opening of the second end of the arc-shaped limiting groove, and the deicing propeller is close to the second end of the arc-shaped limiting groove.

[0015] Preferably, a roller is rotatably provided in the arc plate near the second end of the limiting groove, and the roller can abut against the electric wire.

[0016] Preferably, the support assembly comprises: a base frame, a lifting frame and a fixing plate;

[0017] The chassis is provided with a plurality of insulating terminals, and the chassis can be fixedly mounted on the train through the insulating terminals;

[0018] The lifting frame is installed on the base frame, and one end of the lifting frame can be lifted and lowered;

[0019] The fixing plate is installed on the lifting frame, and the fixing plate can be lifted and lowered along with the lifting frame; the motor, the electric wire limiting plate and the transmission box are all installed on the fixing plate.

[0020] Preferably, the lifting frame comprises: a cylinder, a lower guide rod, a lower arm, a connecting shaft and an upper arm;

[0021] The cylinder, the lower guide rod and the first end of the lower arm are all rotatably mounted on the base frame, and the end of the piston rod in the cylinder is hinged to the lower arm;

[0022] The protrusion on the connecting shaft is provided with a connecting plate, the second end of the lower arm is hinged on the connecting shaft, and the second end of the lower guide rod is hinged to the end of the connecting plate;

[0023] The upper arms are arranged in pairs, the first ends of the upper arms are mounted on the connecting shafts, and the fixing plates are mounted at the second ends of the upper arms.

[0024] Preferably, a protective cover is fixedly arranged on the bracket, and the windmill is located inside the protective cover.

[0025] Preferably, the present invention further provides a catenary passive and active de-icing system, which includes a train and the above-mentioned catenary passive and active de-icing device; the bracket assembly is fixedly installed on the train.

[0026] (III) Beneficial effects

[0027] In the technical solution of the present invention, an electric motor and a windmill are used to drive the de-icing propeller to achieve two de-icing modes, namely active and passive. In passive de-icing, the wind energy brought by the train itself is used as the driving source, which greatly reduces the energy consumption required for de-icing. And by rotating the de-icing propeller, the wires are knocked to remove ice, and the de-icing structure is simple. Description of the drawings

[0028] Figure 1 is a schematic structural diagram of the catenary passive and active de-icing device of the present invention;

[0029] Figure 2 is Figure 1 an enlarged view at A.

[0030]

Description of the reference numerals

[0031] 1: Bracket assembly; 11: Underframe; 110: Insulating terminal; 12: Lifting frame; 121: Cylinder; 122: Lower guide rod; 123: Lower arm; 124: Connecting shaft; 125: Upper arm; 126: Piston rod; 127: Connecting plate; 13: Fixed plate; 14: Protective cover;

[0032] 2: Wire limiting plate; 21: Rotating rod; 22: Arc plate; 23: Arc-shaped limiting groove; 3: Transmission box; 31: First driving gear; 32: Second driving gear; 33: Driven gear;

[0033] 4: De-icing propeller;

[0034] 5: Windmill;

[0035] 6: Electric motor. Specific embodiments

[0036] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below with reference to the drawings through specific embodiments.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0038] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The present invention provides a catenary passive and active de-icing device. The de-icing device includes: a bracket assembly 1, a wire limiting plate 2, a transmission box 3, a de-icing propeller 4, and a windmill 5. The bracket assembly 1 is used for fixedly installing on a train, and a motor 6 is fixedly arranged on the bracket assembly 1. Both the wire limiting plate 2 and the transmission box 3 are installed on the bracket assembly 1. The wire limiting plate 2 is used for limiting the wire; a gear set that meshes with each other is arranged in the transmission box 3; both the motor 6 and the windmill 5 are respectively connected to one gear in the gear set. The de-icing propeller 4 is rotatably installed on the transmission box 3, and the de-icing propeller 4 is connected to one gear in the gear set; both the windmill 5 and the motor 6 can drive the de-icing propeller 4 to rotate through the gear set; the blades of the de-icing propeller 4 can de-ice the wire.

[0041] The catenary passive and active de-icing device in the present invention is installed on a train or high-speed train. During de-icing, the wire is located within the wire limit plate 2. When the speed of the train or locomotive is not fast, the motor 6 drives the de-icing propeller 4 to rotate through a gear drive. The blades on the de-icing propeller 4 rotate to strike the ice on the wire, achieving active de-icing. When the speed of the train or high-speed train is relatively fast, the wind energy brought by the train drives the windmill 5 to rotate. The rotation of the windmill 5 drives the de-icing propeller 4 to de-ice through a gear set, thereby achieving passive de-icing. In the technical solution of the present invention, the motor 6 and the windmill 5 are used to drive the de-icing propeller 4 to achieve two de-icing modes, active and passive. In passive de-icing, the wind energy brought by the train itself is used as the driving source, greatly reducing the energy consumption required for de-icing. And the rotation of the de-icing propeller 4 is used to strike and de-ice the wire, and the de-icing structure is simple. In a preferred embodiment, the blades of the de-icing propeller are made of flexible materials, so that the wire will not be damaged even when it comes into contact with the wire.

[0042] Further, the gear set includes a first driving gear 31, a second driving gear 32, and a driven gear 33 that are all rotatably installed in the transmission box 3 and are sequentially engaged. The first driving gear 31 is connected to the windmill 5, the second driving gear 32 is connected to the output shaft of the motor 6, and the driven gear 33 is connected to the de-icing propeller 4. In a preferred embodiment, a first clutch may also be provided between the first driving gear 31 and the windmill 5, and a second clutch may be provided between the second driving gear 32 and the output shaft of the motor 6. When the active de-icing mode is carried out, the first clutch is disengaged and the second clutch is engaged. The torque on the output shaft of the motor 6 can be transmitted to the driven gear 33 through the second driving gear 32, thereby driving the de-icing propeller 4 to rotate to achieve de-icing. When passive de-icing is carried out, the first clutch is engaged and the second clutch is disengaged. The windmill 5 can drive the first driving gear 31 to rotate, and then drive the driven gear 33 through the second driving gear 32, and finally drive the de-icing propeller 4 to rotate to achieve de-icing.

[0043] Furthermore, the wire limiting plate 2 includes a pair of rotating rods 21 and a pair of arc plates 22. One end of the rotating rod 21 is rotatably installed on the bracket assembly 1, and the arc plate 22 is fixedly installed at the other end of the rotating rod 21. The two arc plates 22 can be butted against each other to form an arc-shaped limiting groove 23 for limiting the wire. When active or passive deicing is performed, the wire is located in the arc-shaped limiting groove 23, which facilitates the deicing propeller 4 to deice the wire. In addition, in the above solution, the wire limiting plate 2 is composed of two arc plates 22, and the two arc plates 22 are respectively provided with rotating rods 21. The rotation of the rotating rod 21 can realize the opening and closing of the two arc plates 22. When the machine stops, the two arc plates 22 are opened and placed. At this time, the two arc plates 22 are placed on the bracket assembly 1 without occupying space. During operation, the two rotating rods 21 are rotated so that the two arc plates 22 are butted against each other to form an arc-shaped limiting groove 23. In a preferred embodiment, the arc plate 22 is a high-density fiberboard. The use of high-density fiber material reduces the frictional loss to the high-voltage wire.

[0044] In addition, the diameter of the opening at the first end of the arc-shaped limiting groove 23 is larger than the diameter of the opening at the second end of the arc-shaped limiting groove 23, and the deicing propeller 4 is close to the second end of the arc-shaped limiting groove 23. The arc-shaped limiting groove 23 is designed with a wide front end and a narrow rear end. The purpose of the wide front end is to ensure that the high-voltage wire is located on the arc-shaped limiting groove 23 when the arc plate 22 is closed, and the narrow rear end is to limit the high-voltage wire, so as to ensure the precise deicing of the deicing device.

[0045] In a specific embodiment, a roller is rotatably provided near the second end of the limiting groove in the arc plate 22, and the roller can abut against the wire. The setting of the roller changes the sliding friction between the wire and the arc plate 22 to rolling friction, greatly reducing the frictional loss between the wire and the arc plate 22 and improving the service life of the arc plate 22.

[0046] On the one hand, the bracket assembly 1 includes a chassis 11, a lifting frame 12, and a fixing plate 13. A plurality of insulating terminals 110 are provided on the chassis 11, and the chassis 11 can be fixedly installed on the train through the insulating terminals 110; the insulating terminals 110 are connected to the top of the high-speed rail, serving the functions of fixing and insulating. The lifting frame 12 is installed on the chassis 11, and one end of the lifting frame 12 can be lifted. The fixing plate 13 is installed on the lifting frame 12, and the fixing plate 13 can follow the lifting frame 12 to lift; the motor 6, the wire limiting plate 2, and the transmission box 3 are all installed on the fixing plate 13.

[0047] Among them, the lifting frame 12 includes: a cylinder 121, a lower guide rod 122, a lower arm 123, a connecting shaft 124, and an upper arm 125. The first ends of the cylinder 121, the lower guide rod 122, and the lower arm 123 are all rotatably installed on the chassis 11, and the end of the piston rod 126 in the cylinder 121 is hinged to the lower arm 123. A connecting plate 127 is convexly provided on the connecting shaft 124, the second end of the lower arm 123 is hinged to the connecting shaft 124, and the second end of the lower guide rod 122 is hinged to the end of the connecting plate 127. The cylinder 121, the lower guide rod 122, the lower arm 123, and the connecting shaft 124 can form a four-bar mechanism, and the telescopic movement of the piston rod 126 in the cylinder 121 can drive the connecting shaft 124 to lift in the vertical direction. The upper arms 125 are arranged in pairs, the first ends of the upper arms 125 are installed on the connecting shaft 124, and the fixing plate 13 is installed at the second ends of the upper arms 125. The upper arms 125 can follow the connecting shaft 124 to lift and lower in the vertical direction, driving the wire limiting plate 2 to lift and lower, so that the wire limiting plate 2 can limit the wires, and the deicing propeller 4 deices the wires. In a preferred embodiment, a balance bar can also be provided between the fixing plate 13 and the connecting shaft 124 to keep the fixing plate 13 horizontal during the lifting and lowering process. For the specific setting method of the balance bar, reference can be made to the structure of the pantograph, which will not be elaborated here.

[0048] In addition, a protective cover 14 is fixedly provided on the bracket, and the windmill 5 is located inside the protective cover 14. The protective cover 14 can effectively prevent the blades of the windmill 5 from flying out accidentally and hurting people, avoiding potential safety risks.

[0049] Finally, the present invention also provides a catenary passive and active deicing system, which is characterized in that the catenary passive and active deicing system includes a train and the catenary passive and active deicing device as described above; the bracket assembly 1 is fixedly installed on the train.

[0050] The train is equipped with a visual sensor. When the visual sensor detects icing on the catenary, it sends a signal to the single-chip microcomputer, and then controls the lifting of the bracket assembly 1 and the closing of the two arc plates 22 through the single-chip microcomputer and the drive circuit, so that the high-voltage wire contacts the arc plates 22, and deicing is carried out through the deicing propeller. When stopping, the single-chip microcomputer and the drive circuit control the lowering of the bracket assembly 1 and the opening and storage of the arc plates 22, thereby protecting the deicing device and increasing its service life.

[0051] The train is also equipped with a speed sensor. When the high-speed train is running at a low speed, the deicing propeller is driven to rotate by the motor 6 for deicing. When it is detected by the speed sensor that the speed of the high-speed train exceeds the set threshold, the first clutch is engaged and the second clutch is disengaged. At this time, the natural wind drives the windmill 5 to drive the deicing propeller 4 to rotate for deicing.

[0052] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.

Claims

1. A catenary passive and active de-icing device, characterized in that, The catenary passive and active de-icing device includes: a bracket assembly (1), a wire limiting plate (2), a transmission box (3), a de-icing propeller (4), and a windmill (5); The bracket assembly (1) is used for fixedly installing on a train, and a motor (6) is fixedly arranged on the bracket assembly (1); The wire limiting plate (2) and the transmission box (3) are both installed on the bracket assembly (1). The wire limiting plate (2) is used for limiting the wire; a gear set that meshes with each other is arranged in the transmission box (3); both the motor (6) and the windmill (5) are respectively connected to one gear in the gear set; The de-icing propeller (4) is rotatably installed on the transmission box (3), and the de-icing propeller (4) is connected to one gear in the gear set; both the windmill (5) and the motor (6) can drive the de-icing propeller (4) to rotate through the gear set; the blades of the de-icing propeller (4) can de-ice the wire.

2. The catenary passive and active de-icing device according to claim 1, characterized in that, The gear set includes a first driving gear (31), a second driving gear (32), and a driven gear (33) that are all rotatably installed in the transmission box (3) and are sequentially meshed; The first driving gear (31) is connected to the windmill (5), the second driving gear (32) is connected to the output shaft of the motor (6), and the driven gear (33) is connected to the de-icing propeller (4).

3. The catenary passive and active de-icing device according to claim 2, characterized in that, The wire limiting plate (2) includes a pair of rotating rods (21) and a pair of arc plates (22); One end of the rotating rod (21) is rotatably installed on the bracket assembly (1), the arc plate (22) is fixedly installed on the other end of the rotating rod (21), and the two arc plates (22) can be butted against each other to form an arc-shaped limiting groove (23), and the arc-shaped limiting groove (23) is used for limiting the wire.

4. The catenary passive and active de-icing device according to claim 3, wherein The diameter of the opening at the first end of the arc-shaped limiting groove (23) is larger than the diameter of the opening at the second end of the arc-shaped limiting groove (23), and the de-icing propeller (4) is close to the second end of the arc-shaped limiting groove (23).

5. The catenary passive and active de-icing device according to claim 4, characterized in that A roller is rotatably arranged inside the arc plate (22) near the second end of the limiting groove, and the roller can abut against the wire.

6. The catenary passive and active de-icing device according to any one of claims 1-5, characterized in that, The bracket assembly (1) includes: a bottom frame (11), a lifting frame (12), and a fixing plate (13); A plurality of insulating terminals (110) are arranged on the bottom frame (11), and the bottom frame (11) can be fixedly installed on the train through the insulating terminals (110); The lifting frame (12) is installed on the bottom frame (11), and one end of the lifting frame (12) can be lifted; The fixing plate (13) is installed on the lifting frame (12), and the fixing plate (13) can be lifted along with the lifting frame (12); the motor (6), the wire limiting plate (2), and the transmission box (3) are all installed on the fixing plate (13).

7. The catenary passive and active de-icing device according to claim 6, characterized in that, The lifting frame (12) includes: a cylinder (121), a lower guide rod (122), a lower arm (123), a connecting shaft (124), and an upper arm (125); The first ends of the cylinder (121), the lower guide rod (122), and the lower arm (123) are all rotatably mounted on the chassis (11), and the end of the piston rod (126) in the cylinder (121) is hinged to the lower arm (123); A connecting plate (127) is protrudingly provided on the connecting shaft (124), the second end of the lower arm (123) is hinged to the connecting shaft (124), and the second end of the lower guide rod (122) is hinged to the end of the connecting plate (127); The upper arms (125) are provided in pairs, the first ends of the upper arms (125) are mounted on the connecting shaft (124), and the fixing plate (13) is mounted at the second ends of the upper arms (125).

8. The catenary passive and active de-icing device according to any one of claims 1-5, characterized in that A protective cover (14) is also fixedly provided on the bracket assembly (1), and the windmill (5) is located inside the protective cover (14).

9. A catenary passive and active de-icing system, characterized in that, The pantograph passive and active de-icing system includes a train and the pantograph passive and active de-icing device according to any one of claims 1-8; the bracket assembly (1) is fixedly mounted on the train.

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