Quick cutting device for rigid suspension busbar of catenary

Abstract

The application discloses a rigid suspension busbar quick cutting device of a catenary, relates to the technical field of rail transit engineering, and comprises a cutting device, wherein the cutting device comprises a hanging column, a fixed base for connecting the cutting device is fixedly installed on the hanging column, a rotating base is rotatably installed on the fixed base through a rotating shaft, a fixed installation shaft is rotatably installed at one end of the rotating base, and a cutting driving device is fixedly installed on the rotating base; the overall layout of the application meets the requirement of the rigid catenary on the insulation spacing, does not cause the problem of invading the equipment limit, does not cause any influence on the pantograph current collection performance and the safe driving of the vehicle after the cutting device is installed, the cutting device is simple and practical in structure, and the cutting device is flexible in installation position and high in universality.

Description

Technical Field

[0001] This invention relates to the field of rail transit engineering technology, and in particular to a rapid cutting device for a rigid suspension busbar of an overhead contact system. Background Technology

[0002] Currently, the design of rigid contact wires at floodgate locations on existing subway lines generally employs small anchor sections to reduce the disassembly and reassembly range of the rigid contact wires during floodgate operation and the workload of subsequent maintenance and repair. To ensure the rapid removal of busbars within the opening and closing range of the floodgates, newly constructed lines have added external joints to the small anchor sections. However, both of these solutions require maintenance personnel to enter the track area for work.

[0003] To achieve automatic disconnection and rapid restoration of the busbar when the floodgate operates, a disconnectable rigid contact wire device is installed at the floodgate location. However, current disconnectable devices suffer from drawbacks such as frequent pantograph arcing, large installation space requirements, complex equipment, and high maintenance workload. Existing designs, while prioritizing busbar disconnection and rapid restoration, have inadvertently created deficiencies in daily maintenance and functional deviations from operational needs. After analyzing the importance and urgency of rigid contact wire busbar disconnection when the floodgate closes and restoration when the floodgate opens, the focus is now on rapid disconnection of the rigid contact wire suspension at the floodgate location, without further consideration for subsequent restoration issues. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention discloses a rapid cutting device for a rigid suspension busbar of an overhead contact line, comprising a cutting device, wherein the cutting device includes a hanging column, a fixed base for connecting the cutting device is fixedly installed on the hanging column, a rotating base is rotatably installed on the fixed base via a rotating shaft, a fixed mounting shaft is rotatably installed at one end of the rotating base, and a cutting drive device is fixedly installed on the rotating base. The cutting drive device includes a motor mounting platform, which is fixedly mounted on a rotating base. A battery and a servo motor are slidably mounted on the motor mounting platform. The battery is fixedly connected to the servo motor. A pinion three is fixedly mounted on the output end of the servo motor. A pinion four is rotatably mounted on the motor mounting platform. A rotating shaft two is fixedly mounted on the pinion four. A cutting flywheel is fixedly mounted on the rotating shaft two and connected to the fixed mounting shaft. A motor test button is provided on the servo motor. The cutting drive device also includes an internal interlocking component.

[0005] Furthermore, the internal interlocking component includes a motor clamp and a clamping fitting. The motor clamp is fixedly installed on the cutting drive device, and the clamping fitting is fixedly installed on the motor mounting platform. The motor clamp and the clamping fitting are used in conjunction.

[0006] Furthermore, it also includes a gravity drive unit, which includes a cutting bracket and a counterweight. The cutting bracket is rotatably connected to a rotating shaft and fixedly connected to a rotating base, with an angle ∠α formed between the cutting bracket and the rotating base. The angle ∠α between the cutting bracket and the rotating base and the weight of the counterweight are adjusted according to the required contact pressure and the rotation direction of the cutting device. A sliding groove is provided inside the cutting bracket, and multiple evenly distributed counterweight pulleys are provided on the bottom end of the counterweight. The multiple counterweight pulleys are connected to the sliding groove inside the cutting bracket. The gravity drive unit also includes an external interlocking component.

[0007] Furthermore, the external interlocking component includes a limiting bar and a pin. The limiting bar is slidably mounted on the fixed base, and the pin is slidably mounted on the fixed base. The specific positions of the limiting bar and the pin are determined according to requirements.

[0008] Furthermore, it also includes a gear drive unit, which includes a rotary drive gear set and a drive gear guide rail. The drive gear guide rail is fixedly mounted on the hanging column and has meshing teeth. The rotary drive gear set cooperates with the drive gear guide rail.

[0009] Furthermore, it also includes a manual drive unit, which includes an operating handle connected to a gear engagement assembly.

[0010] Furthermore, the cutting device is installed directly above or to the side of the rigid suspension according to the on-site installation conditions and usage requirements, and the cutting device is installed using a hanging column.

[0011] The advantages of this invention compared with the prior art are: the overall layout of this invention not only meets the requirements of rigid contact wire for insulation spacing, but also does not cause the problem of encroaching on the equipment boundary. After the cutting device is installed, it will not affect the pantograph-catenary current supply performance or the safe driving of vehicles. The cutting device has a simple and practical structure, and the installation position of the cutting device is flexible and highly versatile. Attached Figure Description

[0012] Figure 1 These are schematic diagrams of the cutting device of the present invention, taken from the front and side.

[0013] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0014] Figure 3 This is a schematic diagram showing the installation position of the cutting device of the present invention.

[0015] Figure 4 This is a schematic diagram of the gravity-driven component structure in Embodiment 1 of the present invention.

[0016] Figure 5 The diagram shows the structure of the cutting drive device in Embodiments 1 and 3 of the present invention.

[0017] Figure 6 This is a schematic diagram of the internal interlocking mechanism in Embodiment 1 of the present invention.

[0018] Figure 7 This is a schematic diagram of the flywheel cutting position of the present invention.

[0019] Figure 8 This is a schematic diagram of the working position of the cutting flywheel in this invention.

[0020] Figure 9 This is a schematic diagram of the gear drive assembly structure in Embodiment 2 of the present invention.

[0021] Figure 10 The diagram shows the structure of three manual drive components according to embodiments of the present invention.

[0022] Reference numerals: 1-Hanging column; 2-Fixed base; 3-Rotating shaft one; 4-Rotating base; 5-Cutting drive device; 6-Cutting flywheel; 7-Cutting bracket; 8-Rotating drive gear set; 9-Drive gear guide rail; 10-Operating handle; 11-Limit bar; 12-Pin; 101-Large gear one; 102-Small gear one; 103-Large gear two; 104-Small gear two; 105-Rotating disk; 501-Small gear three; 502-Small gear four; 503-Rotating... Drive shaft 2; 801-Large gear 3; 701-Counterweight; 702-Counterweight pulley; 703-Baffle; 802-Small gear 5; 803-Large gear 4; 804-Small gear 6; 805-Large gear 5; 806-Small gear 7; 807-Small gear 8; 13-Motor mounting platform; 14-Battery; 15-Servo motor; 16-Motor test button; 17-Motor fastener; 18-Fastening fitting; 19-Fixed mounting shaft; 20-Mounting housing. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Example 1: As Figures 1-8 As shown, a rapid cutting device for a rigid suspension busbar of a contact network includes a cutting device. The cutting device is installed at an appropriate position directly above or to the side of the rigid suspension according to the site installation conditions and usage requirements. The cutting rotation direction is from bottom to top or from top to bottom. The specific rotation direction of the cutting device is determined comprehensively based on the installation position, allowable conditions, and functional requirements. The cutting device includes a hanging column 1 and a drive unit. A fixed base 2 for connecting the cutting device is fixedly installed on the hanging column 1. A rotating base 4 is rotatably installed on the fixed base 2 via a rotating shaft 3. A damping rod is provided between the fixed base 2 and the rotating base 4. One end of the damping rod is connected to the fixed base 2, and the other end of the damping rod is connected to the rotating base 4. The stroke and damping force of the damping rod are adaptively adjusted according to actual needs. A fixed mounting shaft 19 is rotatably installed on one end of the rotating base 4, and a cutting drive unit 5 is fixedly installed on the rotating base 4.

[0027] The cutting drive device 5 includes a motor mounting platform 13, which is fixedly mounted on a rotating base 4. A battery 14 and a servo motor 15 are slidably mounted on the motor mounting platform 13. The battery 14 is fixedly connected to the servo motor 15. A pinion gear 3 501 is fixedly mounted on the output end of the servo motor 15. A pinion gear 4 502 is rotatably mounted on the motor mounting platform 13. A rotating shaft 2 503 is fixedly mounted on the pinion gear 4 502. A cutting flywheel 6 is fixedly mounted on the rotating shaft 2 503. The rotating shaft 2 503 is connected to a fixed mounting shaft 19. A motor test button 16 is provided on the servo motor 15. The cutting drive device 5 also includes an internal interlocking mechanism, which includes a motor clamp 17 and a clamping engagement part 18. The motor clamp 17 is fixedly mounted on the battery 14, and the clamping engagement part 18 is fixedly mounted on the motor mounting platform 13. The motor clamp 17 and the clamping engagement part 18 are used together.

[0028] The drive unit includes a gravity drive assembly, which includes a cutting bracket 7 and a counterweight 701. The cutting bracket 7 is rotatably connected to the rotating shaft 3 and connected to the rotating base 4, forming an angle ∠α between them. The angle ∠α between the cutting bracket 7 and the rotating base 4 is adjusted according to the required contact pressure and the rotation direction of the cutting device. A groove is provided inside the cutting bracket 7, and multiple evenly distributed counterweight pulleys 702 are provided on the bottom end of the counterweight 701. The multiple counterweight pulleys 702 are connected to the groove inside the cutting bracket 7. By utilizing the lever arm effect generated by the rotating base 4, and in conjunction with the position change of the counterweight 701 in the groove, the overall force of the cutting bracket 7 on the cutting device is reduced in the non-working state, and the overall force of the cutting bracket 7 on the cutting device is increased in the working state, providing sufficient contact force between the cutting device and the busbar, while ensuring that the stroke of the cutting device meets the cutting requirements. The gravity drive unit also includes an external interlocking mechanism.

[0029] The external interlocking mechanism includes a limit bar 11 and / or a pin 12. The limit bar 11 is slidably mounted on the fixed base 2, and the pin 12 is slidably mounted on the fixed base 2. The position of the limit bar 11 must ensure that the cutting device does not intrude into the vehicle clearance when the pin 12 falls off, and the servo motor 15 does not start. The pin 12 is a part that fixes the initial state of the rotating base 4. The pin 12 ensures that the cutting device is in the appropriate initial installation position. The limit bar 11 is a backup protection measure for the pin 12 in case of accidental removal. The limit bar 11 prevents the rotating base 4 from rotating and intruding into the vehicle clearance range after the pin 12 is accidentally removed.

[0030] When the limit bar 11 and / or the pin 12 are removed, the limit bar 11 and / or the pin 12 apply an initial pushing force to the rotating base 4. Then, the counterweight 701 drives the rotating base 4, which is mounted on the fixed base 2, to rotate around the rotation axis 3. The rotating base 4 drives the cutting drive device 5 and the cutting flywheel 6 to rotate, so that the cutting flywheel 6 enters the working state from the non-working state. Then, the cutting flywheel 6 cuts the busbar and the contact wire, achieving the purpose of quickly cutting the rigid contact wire. The rotation of the rotating base 4 causes the battery 14 and the servo motor 15 to slide on the motor mounting platform 13, so that the motor clamp 17 and the clamping mating part 18 engage, so that the servo motor 15 drives the pinion 3 501 to mesh with the pinion 4 502, starting the servo motor 15. The output of servo motor 15 drives pinion 4 502 to rotate via pinion 3 501. Pinion 4 502 drives cutting flywheel 6 to rotate via rotating shaft 2 503. Cutting flywheel 6 cuts the busbar and contact wire. The overall layout of the cutting device meets the insulation spacing requirements of rigid contact network without causing intrusion into equipment boundaries. After the cutting device is installed, it will not affect the pantograph-catenary current supply performance or vehicle safety. Cutting flywheel 6 should contact the busbar first, and the radius of cutting flywheel 6 should not be less than the minimum cutting radius of the busbar required during the cutting process. The relative positions of cutting flywheel 6, rotating base 4 and cutting drive device 5 should take into account the mutual influence of each part during the busbar cutting process to ensure that other parts are not affected during the flywheel cutting process.

[0031] Example 2: Figure 8 , Figure 9 As shown, a rapid cutting device for a rigid suspension busbar of a contact network includes a cutting device. The cutting device is installed at an appropriate position directly above or to the side of the rigid suspension according to the site installation conditions and usage requirements. The cutting rotation direction is from bottom to top or from top to bottom. The specific rotation direction of the cutting device is determined comprehensively based on the installation position, allowable conditions, and functional requirements. The cutting device includes a hanging column 1 and a drive unit. A fixed base 2 for connecting the cutting device is fixedly installed on the hanging column 1. A rotating base 4 is rotatably installed on the fixed base 2 via a rotating shaft 3. A damping rod is provided between the fixed base 2 and the rotating base 4. One end of the damping rod is connected to the fixed base 2, and the other end of the damping rod is connected to the rotating base 4. The stroke and damping force of the damping rod are adaptively adjusted according to actual needs. A fixed mounting shaft 19 is rotatably installed on one end of the rotating base 4, and a cutting drive unit 5 is fixedly installed on the rotating base 4.

[0032] The cutting drive device 5 includes a motor mounting platform 13, which is fixedly mounted on a rotating base 4. A battery 14 and a servo motor 15 are fixedly mounted on the motor mounting platform 13. The battery 14 is fixedly connected to the servo motor 15. A pinion gear 3 501 is fixedly mounted on the output end of the servo motor 15. A pinion gear 4 502 is rotatably mounted on the motor mounting platform 13. Pinion gear 3 501 and pinion gear 4 502 mesh. A rotating shaft 2 503 is fixedly mounted on pinion gear 4 502. A cutting flywheel 6 is fixedly mounted on the rotating shaft 2 503. The rotating shaft 2 503 is connected to a fixed mounting shaft 19. A motor test button 16 is provided on the servo motor 15.

[0033] The drive unit includes a gear drive assembly, which includes a rotary drive gear set 8 and a drive gear guide rail 9. The drive gear guide rail 9 is fixedly mounted on the hanging column 1 and has meshing teeth. The rotary drive gear set 8 includes a pinion 807, which is fixedly mounted on a fixed mounting shaft 19. The pinion 807 meshes with a large gear 801, which is rotatably mounted on a rotating base 4. A pinion 802 is fixedly mounted on the large gear 801. Gear 802 meshes with a large gear 803, which is rotatably mounted on the rotating base 4. A small gear 804 is fixedly mounted on the large gear 803. The small gear 804 meshes with a large gear 805, which is rotatably mounted on the rotating base 4. A small gear 806 is fixedly mounted on the large gear 805. The small gear 806 meshes with the meshing teeth on the drive gear guide rail 9, providing sufficient contact force to the cutting device and the busbar, while ensuring that the stroke of the cutting device meets the cutting requirements.

[0034] When the limit bar 11 and / or the pin 12 are removed, the drive mechanism 5 switches to the working position under the action of gravity, and starts the servo motor 15. The output end of the servo motor 15 drives the pinion 3 501 to rotate, the pinion 3 501 drives the pinion 4 502 to rotate, the pinion 4 502 drives the cutting flywheel 6 to rotate through the rotating shaft 2 503, the rotating shaft 2 503 drives the fixed mounting shaft 19 to rotate, the fixed mounting shaft 19 drives the pinion 8 807 to rotate, the pinion 8 807 drives the pinion 5 802 to rotate through the large gear 3 801, the pinion 5 802 drives the pinion 6 804 to rotate through the large gear 4 803, the pinion 6 804 drives the pinion 7 806 to rotate through the large gear 5 805, and the large gear 4 803 rotates along the drive gear guide 9 through the meshing teeth on the drive gear guide 9, thereby causing the cutting flywheel 6 to cut the busbar and contact wire.

[0035] Example 3: Figure 5 , Figure 7 , Figure 8 , Figure 10As shown, a rapid cutting device for a rigid suspension busbar of a contact network includes a cutting device. The cutting device is installed at an appropriate position directly above or to the side of the rigid suspension according to the site installation conditions and usage requirements. The cutting rotation direction is from bottom to top or from top to bottom. The specific rotation direction of the cutting device is determined comprehensively based on the installation position, allowable conditions, and functional requirements. The cutting device includes a hanging column 1 and a drive unit. A fixed base 2 for connecting the cutting device is fixedly installed on the hanging column 1. A rotating base 4 is rotatably installed on the fixed base 2 via a rotating shaft 3. A damping rod is provided between the fixed base 2 and the rotating base 4. One end of the damping rod is connected to the fixed base 2, and the other end of the damping rod is connected to the rotating base 4. The stroke and damping force of the damping rod are adaptively adjusted according to actual needs. A fixed mounting shaft 19 is rotatably installed on one end of the rotating base 4, and a cutting drive unit 5 is fixedly installed on the rotating base 4.

[0036] The cutting drive device 5 includes a motor mounting platform 13, which is fixedly mounted on a rotating base 4. A battery 14 and a servo motor 15 are slidably mounted on the motor mounting platform 13. The battery 14 is fixedly connected to the servo motor 15. A pinion gear 3 501 is fixedly mounted on the output end of the servo motor 15. A pinion gear 4 502 is rotatably mounted on the motor mounting platform 13. A rotating shaft 2 503 is fixedly mounted on the pinion gear 4 502. A cutting flywheel 6 is fixedly mounted on the rotating shaft 2 503. The rotating shaft 2 503 is connected to a fixed mounting shaft 19. A motor test button 16 is provided on the servo motor 15. The cutting drive device 5 also includes an internal interlocking mechanism, which includes a motor clamp 17 and a clamping engagement part 18. The motor clamp 17 is fixedly mounted on the battery 14, and the clamping engagement part 18 is fixedly mounted on the motor mounting platform 13. The motor clamp 17 and the clamping engagement part 18 are used together.

[0037] The drive unit includes a manual drive assembly, which includes a mounting housing 20. The mounting housing 20 is fixedly mounted on a fixed base 2. A large gear 101 is rotatably mounted inside the mounting housing 20. An operating handle 10 is fixedly mounted at the center of the large gear 101. The large gear 101 meshes with a small gear 102. A large gear 2 103 is fixedly mounted on the small gear 102. The large gear 2 103 is rotatably mounted inside the mounting housing 20. The large gear 2 103 meshes with a small gear 2 104. A rotating disk 105 is fixedly mounted on the small gear 2 104. The rotating disk 105 is fixedly connected to a rotating shaft 3.

[0038] Rotating the operating handle 10 causes the large gear 101 to rotate. The large gear 101 then drives the large gear 2 103 to rotate via the small gear 102. The large gear 2 103 then drives the rotating disk 105 to rotate via the small gear 2 104. The rotating disk 105 drives the rotating base 4 to rotate via the rotating shaft 1 3. The rotation of the rotating base 4 causes the battery 14 and the servo motor 15 to slide on the motor mounting platform 13, allowing the motor clamp 17 and the clamping engagement part 18 to engage. This causes the servo motor 15 to drive the small gear 3 501 to mesh with the small gear 4 502, starting the servo motor 15. The output end of the servo motor 15 drives the small gear 3 501 to rotate, which in turn drives the small gear 4 502 to rotate. The small gear 4 502 then drives the cutting flywheel 6 to rotate via the rotating shaft 2 503, thereby causing the cutting flywheel 6 to cut the busbar and contact wire.

[0039] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A rapid cutting device for a rigid suspension busbar of an overhead contact line, comprising a cutting device, characterized in that: The cutting device includes a hanging column (1), on which a fixed base (2) for connecting the cutting device is fixedly installed. A rotating base (4) is rotatably installed on the fixed base (2) via a rotating shaft (3). A fixed mounting shaft (19) is rotatably installed at one end of the rotating base (4). A cutting drive device (5) is fixedly installed on the rotating base (4). The cutting drive device (5) includes a motor mounting platform (13), which is fixedly mounted on a rotating base (4). A battery (14) and a servo motor (15) are slidably mounted on the motor mounting platform (13). The battery (14) is fixedly connected to the servo motor (15). A pinion three (501) is fixedly mounted on the output end of the servo motor (15). A pinion four (502) is rotatably mounted on the motor mounting platform (13). A rotating shaft two (503) is fixedly mounted on the pinion four (502). A cutting flywheel (6) is fixedly mounted on the rotating shaft two (503). The rotating shaft two (503) is connected to a fixed mounting shaft (19). A motor test button (16) is provided on the servo motor (15). The cutting drive device (5) also includes an internal interlocking component. The internal interlocking components include a motor fastener (17) and a fastening fitting (18). The motor fastener (17) is fixedly installed on the cutting drive device (5), and the fastening fitting (18) is fixedly installed on the motor mounting platform (13). The motor fastener (17) and the fastening fitting (18) are used together. It also includes a gravity drive unit, which includes a cutting bracket (7) and a counterweight (701). The cutting bracket (7) is rotatably connected to the rotating shaft (3). The cutting bracket (7) is fixedly connected to the rotating base (4) and an angle ∠α is formed between the cutting bracket (7) and the rotating base (4). The angle ∠α between the cutting bracket (7) and the rotating base (4) is adjusted according to the required contact pressure and the rotation direction of the cutting device. A sliding groove is provided in the cutting bracket (7). Multiple evenly distributed counterweight pulleys (702) are provided on the bottom end of the counterweight (701). The multiple counterweight pulleys (702) are connected to the sliding groove in the cutting bracket (7). The gravity drive unit also includes an external interlocking component. The external interlocking components include a limiting rod (11) and a pin (12). The limiting rod (11) is slidably mounted on the fixed base (2), and the pin (12) is slidably mounted on the fixed base (2). The specific positions of the limiting rod (11) and the pin (12) are determined according to the requirements.

2. The contact wire rigid suspension busbar quick-cutting device as described in claim 1, characterized in that: It also includes a gear drive unit, which includes a rotary drive gear set (8) and a drive gear guide rail (9). The drive gear guide rail (9) is fixedly installed on the hanging column (1). The drive gear guide rail (9) is provided with meshing teeth. The rotary drive gear set (8) cooperates with the drive gear guide rail (9).

3. The contact wire rigid suspension busbar quick-cutting device as described in claim 1, characterized in that: It also includes a manual drive unit, which includes an operating handle (10) connected to a gear engagement assembly.

4. The contact wire rigid suspension busbar quick-cutting device as described in claim 1, characterized in that: The cutting device is installed directly above or to the side of the rigid suspension according to the site installation conditions and usage requirements, and the cutting device is installed using a hanging column.

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