Rapid cut-off device for rigid suspension busbar of overhead line system

By designing a quick disconnect device for the rigidly suspended busbar of the contact network and utilizing a cutting drive device and a limit device, the problems of complex device, heavy operation and maintenance workload, and frequent pantograph sparking and arcing in the existing technology are solved, thereby achieving quick disconnection and safe busbar removal, and meeting the requirements of insulation spacing and vehicle safety.

CN120621169APending Publication Date: 2025-09-12CHINA RAILWAY ELECTRIFICATION SURVEY DESIGN & RES INST
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Patent Information

Application Number
CN202510745731.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

In the existing technology, the rigid contact network bus disconnect device at the anti-flooding door position has the problems of frequent pantograph ignition and arcing, complex equipment and heavy operation and maintenance workload, and large installation space, which makes it difficult to meet the needs of rapid disassembly and recovery.

Method used

A fast-cutting device for rigid-suspended busbars in the contact network was designed. It included a cutting drive device, a gravity drive unit, a gear drive unit, and a manual drive unit. The servo motor and cutting flywheel were used to achieve fast cutting of the busbars, and a limit device was combined to ensure safety and flexibility.

Benefits of technology

It achieves the goal of meeting insulation spacing requirements without invading equipment boundaries, ensuring the current transfer performance of the bow network and vehicle safety. It has a simple structure, flexible installation position and high versatility, reducing the workload of operation and maintenance.

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Abstract

The invention discloses a rapid cutting device for a rigid suspension busbar of an overhead line system, and relates to the technical field of rail traffic engineering, the rapid cutting device comprises a cutting device, the cutting device comprises a hanging column, a fixed base used for being connected with the cutting device is fixedly installed on the hanging column, and a rotating base is rotatably installed on the fixed base through a first rotating shaft; a fixed mounting shaft is rotationally mounted at one end of the rotating base, and a cutting driving device is fixedly mounted on the rotating base; according to the overall layout, the requirement of the rigid contact net for the insulation distance is met, the problem of invading equipment boundaries cannot be caused, after the cutting-off device is installed, the pantograph-catenary current collection performance and vehicle safety driving cannot be affected at all, and the cutting-off device is simple and practical in structure, flexible in installation position and high in universality.
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Description

Technical Field

[0001] The present invention relates to the technical field of rail transportation engineering, and in particular to a contact network rigid suspension busbar quick disconnect device. Background Art

[0002] Currently, the design of rigid catenary systems at flood control doors on existing subway lines generally uses small anchor sections to reduce the scope of disassembly and installation of the rigid catenary during flood control door operation, as well as the workload for subsequent repair and maintenance. To ensure rapid removal of busbars within the flood control door opening and closing range, new lines are adding outsourced joints in addition to the small anchor sections. However, both of these solutions require operations and maintenance personnel to enter the track area.

[0003] To achieve automatic busbar disconnection and rapid recovery when the floodgates operate, a rigid catenary disconnect device is installed at the floodgates. However, existing disconnect devices suffer from frequent pantograph arcing, large installation space, complex equipment, and heavy maintenance. Existing designs prioritize both busbar disconnection and rapid recovery, which in turn creates deficiencies in daily maintenance and deviates from operational needs. After analyzing the importance and urgency of disconnecting the rigid catenary busbar when the floodgates are closed and restoring it after the floodgates are opened, the focus has been on the rapid disconnection of the rigid catenary at the floodgates, with less consideration given to subsequent recovery. Summary of the Invention

[0004] In response to the above technical problems, the present invention discloses a fast disconnecting device for a rigidly suspended busbar of a contact network, comprising a disconnecting device, the disconnecting device comprising a suspension column, a fixed base for connecting the disconnecting device being fixedly mounted on the suspension column, a rotating base being rotatably mounted on the fixed base via a rotating shaft, a fixed mounting shaft being rotatably mounted on one end of the rotating base, and a cutting drive device being fixedly mounted on the rotating base;

[0005] 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 the rotating shaft two is connected to a fixed mounting shaft, a motor test button is provided on the servo motor, and the cutting drive device also includes an internal interlocking component.

[0006] Furthermore, the internal interlocking component includes a motor clamp and a clamping fitting. The motor clamp is fixedly mounted on the cutting drive device, and the clamping fitting is fixedly mounted on the motor mounting platform. The motor clamp is used in conjunction with the clamping fitting.

[0007] Furthermore, it also includes a gravity drive unit, which includes a cutting bracket and a counterweight. The cutting bracket is rotatably connected to the rotating shaft, the cutting bracket is fixedly connected to the rotating base, and an angle ∠α is 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 slide groove is provided in the cutting bracket, and a plurality of evenly distributed counterweight pulleys are provided on the bottom end of the counterweight. The plurality of counterweight pulleys are connected to the slide groove in the cutting bracket, and the gravity drive unit also includes an external interlocking component.

[0008] Furthermore, the external interlocking component includes a limiting rod and a latch, the limiting rod is slidably mounted on the fixed base, the latch is slidably mounted on the fixed base, and the specific positions of the limiting rod and the latch are determined according to requirements.

[0009] Furthermore, it also includes a gear drive unit, which includes a rotating drive gear set and a driving gear guide rail. The driving gear guide rail is fixedly installed on the suspension column, and meshing teeth are provided on the driving gear guide rail. The rotating drive gear set cooperates with the driving gear guide rail.

[0010] Furthermore, a manual drive unit is included, and the manual drive unit includes an operating handle, and the operating handle is connected to a gear matching assembly.

[0011] Furthermore, the cutting device is installed just above, on the side or at other appropriate locations of the rigid suspension according to on-site installation conditions and usage requirements, and the cutting device is installed using a hanging column or other appropriate methods.

[0012] The beneficial effects of the present invention compared with the prior art are: the overall layout of the present invention not only meets the requirements of the rigid contact network for insulation spacing, but also does not cause the problem of intrusion into the equipment boundary. After the cutting device is installed, it will not cause any impact on the current supply performance of the bow network and the safe driving of the vehicle. The cutting device has a simple and practical structure, and the installation position of the cutting device is flexible and highly versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front and side views of the cutting device of the present invention.

[0014] Figure 2 for Figure 1 A magnified schematic diagram of the structure in the middle.

[0015] Figure 3 This is a schematic diagram of the installation position of the cutting device of the present invention.

[0016] Figure 4 This is a structural diagram of the gravity drive component in Example 1 of the present invention.

[0017] Figure 5 This is a schematic structural diagram of the cutting drive device according to Embodiment 1 and Embodiment 3 of the present invention.

[0018] Figure 6 This is a schematic diagram of the internal interlocking mechanism structure in Example 1 of the present invention.

[0019] Figure 7 This is a schematic diagram of the flywheel cutting position of the present invention.

[0020] Figure 8 This is a schematic diagram of the working position of the cutting flywheel of the present invention.

[0021] Figure 9 Schematic diagram of the gear drive assembly structure in embodiment 2 of the present invention.

[0022] Figure 10 Schematic diagram of the structure of three manual drive components in an embodiment of the present invention.

[0023] Reference numerals: 1-hanging column; 2-fixed base; 3-rotating shaft 1; 4-rotating base; 5-cutting drive device; 6-cutting flywheel; 7-cutting bracket; 8-rotating drive gear set; 9-driving gear guide rail; 10-operating handle; 11-limiting rod; 12-latch; 101-large gear 1; 102-small gear 1; 103-large gear 2; 104-small gear 2; 105-rotating disk; 501-small gear 3; 502-small gear 4; 503-rotating plate 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 fixing fixture; 18-fixed fitting; 19-fixed mounting shaft; 20-mounting housing. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0027] Example 1: Figures 1-8 As shown, a contact network rigid suspension bus rapid disconnecting device includes a disconnecting device, which is installed at an appropriate position directly above or on the side of the rigid suspension according to on-site installation conditions and usage requirements. The direction of cutting rotation is from bottom to top or from top to bottom. The specific rotation direction of the disconnecting device is determined comprehensively according to the installation position, allowable conditions and functional requirements. The disconnecting device includes a suspension column 1 and a drive unit. A fixed base 2 for connecting the disconnecting device is fixedly installed on the suspension column 1. A rotating base 4 is rotatably installed on the fixed base 2 through 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 installation shaft 19 is rotatably installed on one end of the rotating base 4, and a cutting drive device 5 is fixedly installed on the rotating base 4.

[0028] The cutting drive device 5 includes a motor mounting platform 13, which is fixedly mounted on the 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 the 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. The internal interlocking mechanism includes a motor clamping piece 17 and a clamping fitting 18. The motor clamping piece 17 is fixedly mounted on the battery 14. The clamping fitting 18 is fixedly mounted on the motor mounting platform 13. The motor clamping piece 17 and the clamping fitting 18 are used in conjunction with each other.

[0029] The driving unit includes a gravity drive component, which includes a cutting bracket 7 and a counterweight 701. The cutting bracket 7 is rotatably connected to the rotating shaft 3, and the cutting bracket 7 is connected to the rotating base 4. 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 slide groove is provided in the cutting bracket 7, and a plurality of evenly distributed counterweight pulleys 702 are provided on the bottom end of the counterweight 701. The plurality of counterweight pulleys 702 are connected to the slide groove in the cutting bracket 7. The lever arm effect generated by the rotating rotating base 4 is utilized, and the position change of the counterweight 701 in the slide groove is coordinated, so that the overall force of the cutting bracket 7 on the cutting device is reduced in the non-working state. In the working state, the overall force of the cutting bracket 7 on the cutting device is increased, providing sufficient contact force to the cutting device and the bus, while ensuring that the cutting device stroke meets the cutting requirements. The gravity drive unit also includes an external interlocking mechanism.

[0030] The external interlocking mechanism includes a limit rod 11 and / or a latch 12. The limit rod 11 is slidably installed on the fixed base 2, and the latch 12 is slidably installed on the fixed base 2. The position of the limit rod 11 needs to ensure that the cutting device does not invade the vehicle limit when the latch 12 falls off, and the servo motor 15 does not start. The latch 12 is a part that fixes the initial state of the rotating base 4. The latch 12 ensures that the cutting device is in the appropriate initial installation position. The limit rod 11 is a backup protection measure for the latch 12 in case it is accidentally pulled out. The limit rod 11 prevents the rotating base 4 from rotating and invading the vehicle limit range after the latch 12 is accidentally pulled out.

[0031] When the limiting rod 11 and / or the latch 12 are pulled out, the limiting rod 11 and / or the latch 12 apply an initial thrust to the rotating base 4, and then the weight of the counterweight 701 drives the rotating base 4 installed on the fixed base 2 to rotate around the rotating shaft 1 3, and 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, and then the bus and the contact line are cut off by the cutting flywheel 6, so as to achieve the purpose of quickly cutting off the rigid contact network. The rotation of the rotating base 4 drives the battery 14 and the servo motor 15 to slide on the motor mounting platform 13, so that the motor clamping piece 17 and the clamping fitting 18 cooperate, so that the servo motor 15 drives the small gear three 501 to engage with the small gear four 502, and starts the servo motor 15. The output end of the servo motor 15 drives the pinion four 502 to rotate through the pinion three 501, and the pinion four 502 drives the cutting flywheel 6 to rotate through the rotating shaft two 503. The cutting flywheel 6 cuts the bus and the contact line. The overall layout of the cutting device not only meets the requirements of the rigid contact network for insulation spacing, but also does not cause the problem of invading the equipment boundary. After the cutting device is installed, it will not cause any impact on the bow network current delivery performance and the safe driving of the vehicle. The cutting flywheel 6 should first contact the bus, and the radius of the cutting flywheel 6 should not be less than the minimum cutting radius of the bus required during the cutting process. The relative positions of the cutting flywheel 6, the rotating base 4 and the cutting drive device 5 should take into account the mutual influence of various parts during the bus cutting process to ensure that other components are not affected during the flywheel cutting process.

[0032] Example 2: Figure 8 、 Figure 9 As shown, a contact network rigid suspension bus rapid disconnecting device includes a disconnecting device, which is installed at an appropriate position directly above or on the side of the rigid suspension according to on-site installation conditions and usage requirements. The direction of cutting rotation is from bottom to top or from top to bottom. The specific rotation direction of the disconnecting device is determined comprehensively according to the installation position, allowable conditions and functional requirements. The disconnecting device includes a suspension column 1 and a drive unit. A fixed base 2 for connecting the disconnecting device is fixedly installed on the suspension column 1. A rotating base 4 is rotatably installed on the fixed base 2 through 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 installation shaft 19 is rotatably installed on one end of the rotating base 4, and a cutting drive device 5 is fixedly installed on the rotating base 4.

[0033] The cutting drive device 5 includes a motor mounting platform 13, which is fixedly mounted on the 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 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. The pinion three 501 is engaged with the pinion four 502. A rotating shaft two 503 is fixedly mounted on the pinion four 502. The rotating shaft two 503 is fixedly mounted with a cutting flywheel 6. The rotating shaft two 503 is connected to the fixed mounting shaft 19. A motor test button 16 is provided on the servo motor 15.

[0034] The driving unit includes a gear drive assembly, which includes a rotating drive gear set 8 and a driving gear guide rail 9. The driving gear guide rail 9 is fixedly mounted on the sling 1. The driving gear guide rail 9 is provided with meshing teeth. The rotating drive gear set 8 includes a small gear eight 807. The small gear eight 807 is fixedly mounted on the fixed mounting shaft 19. The small gear eight 807 is meshed with a large gear three 801. The large gear three 801 is rotatably mounted on the rotating base 4. The large gear three 801 is fixedly mounted with a small gear five 802. The fifth gear 802 is engaged with the large gear four 803, which is rotatably mounted on the rotating base 4, and the small gear six 804 is fixedly mounted on the large gear four 803. The small gear six 804 is engaged with the large gear five 805, which is rotatably mounted on the rotating base 4, and the small gear seven 806 is fixedly mounted on the large gear five 805. The small gear seven 806 is engaged with the meshing teeth on the driving gear guide rail 9, providing sufficient contact force between the cutting device and the bus, while ensuring that the cutting device stroke meets the cutting requirements.

[0035] When the limit rod 11 and / or the latch 12 are pulled out, the driving mechanism 5 switches to the working position under the action of gravity, and the servo motor 15 is started. The output end of the servo motor 15 drives the small gear three 501 to rotate, the small gear three 501 drives the small gear four 502 to rotate, the small gear four 502 drives the cutting flywheel 6 to rotate through the rotating shaft two 503, the rotating shaft two 503 drives the fixed installation shaft 19 to rotate, the fixed installation shaft 19 drives the small gear eight 807 to rotate, the small gear eight 807 drives the small gear five 802 to rotate through the large gear three 801, the small gear five 802 drives the small gear six 804 to rotate through the large gear four 803, the small gear six 804 drives the small gear seven 806 to rotate through the large gear five 805, and the large gear four 803 rotates along the drive gear guide rail 9 through the meshing teeth on the drive gear guide rail 9, so that the cutting flywheel 6 cuts off the bus and the contact line.

[0036] Example 3: Figure 5 、 Figure 7 、 Figure 8 、 Figure 10As shown, a contact network rigid suspension bus rapid disconnecting device includes a disconnecting device, which is installed at an appropriate position directly above or on the side of the rigid suspension according to on-site installation conditions and usage requirements. The direction of cutting rotation is from bottom to top or from top to bottom. The specific rotation direction of the disconnecting device is determined comprehensively according to the installation position, allowable conditions and functional requirements. The disconnecting device includes a suspension column 1 and a drive unit. A fixed base 2 for connecting the disconnecting device is fixedly installed on the suspension column 1. A rotating base 4 is rotatably installed on the fixed base 2 through 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 installation shaft 19 is rotatably installed on one end of the rotating base 4, and a cutting drive device 5 is fixedly installed on the rotating base 4.

[0037] The cutting drive device 5 includes a motor mounting platform 13, which is fixedly mounted on the 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 the 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. The internal interlocking mechanism includes a motor clamping piece 17 and a clamping fitting 18. The motor clamping piece 17 is fixedly mounted on the battery 14. The clamping fitting 18 is fixedly mounted on the motor mounting platform 13. The motor clamping piece 17 and the clamping fitting 18 are used in conjunction with each other.

[0038] The drive unit includes a manual drive component, which includes a mounting shell 20, which is fixedly mounted on the fixed base 2, and a large gear 101 is rotatably mounted in the mounting shell 20, an operating handle 10 is fixedly mounted at the center of the large gear 101, the large gear 101 is engaged with a small gear 102, and a large gear 2 103 is fixedly mounted on the small gear 102, the large gear 2 103 is rotatably mounted in the mounting shell 20, the large gear 2 103 is engaged with a small gear 2 104, a rotating disk 105 is fixedly mounted on the small gear 2 104, and the rotating disk 105 is fixedly connected to the rotating shaft 1 3.

[0039] Turn the operating handle 10, the operating handle 10 drives the large gear 101 to rotate, the large gear 101 drives the large gear 2 103 to rotate through the small gear 102, the large gear 2 103 drives the rotating disk 105 to rotate through the small gear 2 104, the rotating disk 105 drives the rotating base 4 to rotate through the rotating shaft 13, the rotation of the rotating base 4 drives the battery 14 and the servo motor 15 to slide on the motor mounting platform 13, so that the motor clamping piece 17 and the clamping fitting 18 cooperate, so that the servo motor 15 drives the small gear 3 501 to engage with the small gear 4 502, and the servo motor 15 is started. The output end of the servo motor 15 drives the small gear 3 501 to rotate, the small gear 3 501 drives the small gear 4 502 to rotate, and the small gear 4 502 drives the cutting flywheel 6 to rotate through the rotating shaft 2 503, so that the cutting flywheel 6 cuts the bus and the contact line.

[0040] The above embodiments merely represent one or more embodiments 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 a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A contact network rigid suspension busbar quick disconnect device, comprising a disconnect device, characterized in that: The cutting device comprises a hanging column (1), a fixed base (2) for connecting the cutting device is fixedly mounted on the hanging column (1), a rotating base (4) is rotatably mounted on the fixed base (2) via a rotating shaft (3), a fixed mounting shaft (19) is rotatably mounted on one end of the rotating base (4), and a cutting drive device (5) is fixedly mounted on the rotating base (4); The cutting drive device (5) comprises a motor mounting platform (13), the motor mounting platform (13) 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), and the cutting drive device (5) further comprises an internal interlocking component.

2. A contact network rigid suspension busbar quick disconnect device according to claim 1, characterized in that: The internal interlocking assembly comprises a motor clamping piece (17) and a clamping fitting piece (18), wherein the motor clamping piece (17) is fixedly mounted on the cutting drive device (5), and the clamping fitting piece (18) is fixedly mounted on the motor mounting platform (13), and the motor clamping piece (17) and the clamping fitting piece (18) are used in conjunction with each other.

3. The contact network rigid suspension busbar quick disconnect device according to claim 1, characterized in that: The invention also includes a gravity drive unit, wherein the gravity drive unit includes a cutting bracket (7) and a counterweight (701), wherein 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), and 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 slide groove is provided in the cutting bracket (7), and a plurality of evenly distributed counterweight pulleys (702) are provided on the bottom end of the counterweight (701), and the plurality of counterweight pulleys (702) are connected to the slide groove in the cutting bracket (7). The gravity drive unit also includes an external interlocking component.

4. A contact network rigid suspension busbar quick disconnect device according to claim 3, characterized in that: The external interlocking component comprises a limiting rod (11) and a latch (12), wherein the limiting rod (11) is slidably mounted on the fixed base (2), and the latch (12) is slidably mounted on the fixed base (2), and the specific positions of the limiting rod (11) and the latch (12) are determined according to requirements.

5. The contact network rigid suspension busbar quick disconnect device according to claim 1, characterized in that: The invention also includes a gear drive unit, which includes a rotating drive gear set (8) and a driving gear guide rail (9). The driving gear guide rail (9) is fixedly mounted on the suspension column (1). The driving gear guide rail (9) is provided with meshing teeth. The rotating drive gear set (8) cooperates with the driving gear guide rail (9).

6. The contact network rigid suspension busbar quick disconnect device according to claim 1, characterized in that: It also includes a manual drive unit, which includes an operating handle (10) and a gear matching assembly connected to the operating handle (10).

7. The contact network rigid suspension busbar quick disconnect device according to claim 1, characterized in that: The cutting device is installed just above, on the side or in other appropriate positions of the rigid suspension according to the on-site installation conditions and use requirements, and the cutting device is installed in the form of a hanging column or other appropriate means.

Citation Information

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