External hanging type mobile driving device, chassis truck and switch cabinet

Abstract

The invention relates to the technical field of electrical equipment, and discloses an externally-hung type movement driving device, a chassis truck and a switch cabinet, which are applied to the switch cabinet provided with a mechanical chassis truck, and comprise a sealing shell, one end face of which is arranged on a cabinet door panel of the switch cabinet; the motor is arranged on the other end face of the sealing shell, and an output shaft of the motor faces the interior of the sealing shell; the transmission front end part of the transmission part is arranged in the sealing shell and is in transmission connection with an output shaft of the motor, and the transmission tail end part of the transmission part faces the outer part of the sealing shell, is connected with a screw rod of a chassis vehicle and is used for driving the chassis vehicle of the switch cabinet; and the controller is arranged in the sealing shell, and the controller is connected with the motor and controls rotation of the motor. The problem that when an existing switch cabinet built-in electric chassis vehicle breaks down, the maintenance process is inconvenient is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment, and in particular relates to an externally mounted mobile drive device, a chassis vehicle and a switch cabinet. Background Art

[0002] Vacuum circuit breakers are commonly used equipment in the power industry, generally installed in switch cabinets, and used to close and disconnect electrical circuits and carry load currents. Routine inspection and maintenance of switch cabinets requires moving the vacuum circuit breaker between the working position and the test position, or removing the vacuum circuit breaker from the cabinet for inspection or replacement.

[0003] The existing vacuum circuit breaker is very heavy and must be supported by a chassis vehicle for entry and exit. Commonly used chassis vehicles include mechanical chassis vehicles and built-in electric chassis vehicles. Mechanical chassis vehicles require manual operation and cannot be automated or remotely operated. By setting up a built-in electric chassis vehicle, electric operation can be achieved. However, the structure of the built-in electric chassis vehicle includes components such as a high-speed motor, a large-ratio reduction box, and a clutch. Failures may occur during operation, causing inconvenience in the maintenance process. Summary of the invention

[0004] The purpose of the present invention is to provide an external mobile drive device, a chassis vehicle and a switch cabinet, so as to overcome the problem that the existing switch cabinet built-in electric chassis vehicle has an inconvenient maintenance process when a fault occurs. The specific technical solution is as follows:

[0005] An external mobile drive device is applied to a switch cabinet provided with a mechanical chassis vehicle, comprising:

[0006] A sealing shell, one end surface of which is arranged on a door panel of the switch cabinet;

[0007] A motor, which is arranged on the other end surface of the enclosure, and the motor output shaft faces the interior of the enclosure;

[0008] A transmission component, whose transmission front end portion is arranged inside the enclosure and is drivingly connected to the output shaft of the motor, and whose transmission end portion faces the outside of the enclosure and is connected to the screw rod of the chassis vehicle, and is used to drive the switch cabinet chassis vehicle;

[0009] The controller is arranged inside the shell, and the controller is connected to the motor and controls the rotation of the motor.

[0010] Preferably, the enclosure comprises a first positioning plate, a second positioning plate and a mounting post; the first positioning plate and the second positioning plate are connected via the mounting post.

[0011] Preferably, the first positioning plate is arranged on a door panel of the switch cabinet; and the motor is arranged on the second positioning plate.

[0012] Preferably, the first positioning plate is provided with a connecting hole for connecting with a door panel of the switch cabinet.

[0013] Preferably, the transmission component includes a mounting plate, a first gear, a transmission chain, a second gear, a bearing, a transmission shaft and a coupling;

[0014] The mounting plate is arranged between the first positioning plate and the second positioning plate, and both ends are connected to the mounting columns respectively; the first gear is connected to the output shaft of the motor; the second gear is sleeved on the rotating shaft; the first gear and the second gear are connected by meshing transmission through the transmission chain;

[0015] One end of the transmission shaft is connected to the second positioning transmission by sleeve-engaging the bearing; the other end of the transmission shaft is connected to the mounting plate transmission by sleeve-engaging the bearing, and this end of the transmission shaft is provided with an outer shaft head facing the outside of the first positioning plate, and is connected to the screw joint of the mechanical chassis vehicle through the coupling.

[0016] Preferably, it also includes a hand wheel; the hand wheel is installed at one end of the transmission shaft facing the outer side of the second positioning plate.

[0017] Preferably, the controller is mounted on the mounting plate.

[0018] A chassis vehicle, used in a switch cabinet, comprises a fastener, a frame and the aforementioned external mobile drive device;

[0019] A fastener, which is arranged in the switch cabinet, one end of which passes through the cabinet door panel of the switch cabinet and is connected to the connecting hole of the first positioning plate;

[0020] A frame, which is movably arranged in the switch cabinet, and a nut structure is fixedly arranged on the frame, and the nut structure is sleeved on the screw rod. When the screw rod rotates, the frame is driven to move forward and backward through the nut structure;

[0021] The externally mounted mobile driving device is arranged on the outside of the cabinet door panel of the switch cabinet, and the externally mounted mobile driving device is connected to the screw rod of the frame through a coupling.

[0022] A switch cabinet comprises a device, a limit switch and a chassis vehicle; the device is mounted on a nut structure of the chassis vehicle; two limit switches are spaced apart on a side panel of the switch cabinet for detecting the position of the device on the chassis vehicle; the limit switch is connected to the controller for receiving a signal from the limit switch.

[0023] Compared with the existing technology, the present invention has the following beneficial effects:

[0024] 1. The external mobile drive device in the present invention is applied to the switch cabinet equipped with a mechanical chassis, which solves the problem of inconvenient maintenance process when the existing electric chassis built into the switch cabinet fails. At the same time, it is installed by fasteners, without complicated installation process and a lot of modification work, which is convenient for upgrading and modifying the existing switch cabinet.

[0025] 2. An external mobile driving device in the present invention is connected to a hand wheel via a transmission shaft. When a fault is found in the driving device, the original manual operation function is not affected, and basic operation can still be guaranteed during equipment maintenance, thereby improving the flexibility of the use of the driving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0027] Figure 1 It is a schematic structural diagram of the external mobile drive device of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the external mobile drive device of the present invention from another viewing angle.

[0029] Figure 3 It is a partial structural schematic diagram of the switch cabinet of the present invention.

[0030] Description of main reference numerals:

[0031] 1-motor; 21-first gear, 22-mounting plate, 23-second gear, 24-transmission chain, 25-coupling, 26-bearing; 31-second positioning plate, 32-mounting column, 33-second positioning plate; 4-controller; 51-cabinet door panel, 52-cabinet side panel, 53-screw, 54-track; 6-equipment; 7-limit switch; 8-handwheel; 10-external mobile drive device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0036] Please refer to the following examples for details. Figures 1 to 3

[0037] Example 1

[0038] The embodiment of the present application provides an external mobile drive device, which is applied to a switch cabinet provided with a mechanical chassis vehicle, including:

[0039] The enclosure has one end surface disposed on a door panel 51 of the switch cabinet;

[0040] Specifically, the enclosure includes a first positioning plate 33, a second positioning plate 31 and a mounting column 32; the first positioning plate 33 and the second positioning plate 31 are connected via the mounting column 32; the first positioning plate 33 is disposed on a cabinet door panel 51 of the switch cabinet;

[0041] The motor 1 is arranged on the other end surface of the enclosure, and the output shaft of the motor 1 faces the inside of the enclosure; the motor 1 is arranged on the second positioning plate 31, and is used to be connected to the cabinet door panel 51 of the switch cabinet;

[0042] A transmission component, the transmission front end of which is arranged inside the enclosure and is drivingly connected to the output shaft of the motor 1, and the transmission end of which faces the outside of the enclosure and is connected to the screw rod 53 of the chassis vehicle, so as to drive the switch cabinet chassis vehicle;

[0043] Specifically, the transmission component includes a mounting plate 22, a first gear 21, a transmission chain 24, a second gear 23, a bearing 26, a transmission shaft and a coupling 25;

[0044] The mounting plate 22 is disposed between the first positioning plate 33 and the second positioning plate 31, and both ends are connected to the mounting column 32 respectively; the first gear 21 is connected to the output shaft of the motor 1; the second gear 23 is sleeved on the rotating shaft; the first gear 21 and the second gear 23 are meshed and connected through the transmission chain 24;

[0045] One end of the transmission shaft is connected to the second positioning drive by sleeve-engaging the bearing 26; the other end of the transmission shaft is connected to the mounting plate 22 by sleeve-engaging the bearing 26, and this end of the transmission shaft is provided with an outer shaft head facing the outside of the first positioning plate 33, and is connected to the screw rod 53 joint of the mechanical chassis vehicle through the coupling 25;

[0046] The controller 4 is disposed inside the enclosure, and the controller 4 is connected to the motor 1 to control the rotation of the motor 1 .

[0047] Specifically, the controller 4 is installed on the mounting plate 22 .

[0048] The enclosure protects the internal components, enclosing the key components such as the motor 1, the transmission components and the controller 4 to prevent them from being damaged by the external environment. At the same time, the connection between the first positioning plate 33 and the cabinet door panel 51 provides an installation position for the entire mobile drive device.

[0049] The motor 1 is used as a power source, and its output shaft faces inwards to facilitate connection with the transmission components, thereby transmitting power to the screw rod 53 of the chassis vehicle to drive the chassis vehicle to move. At the same time, the transmission chain 24 composed of the first gear 21, the transmission chain 24 and the second gear 23 can convert the high-speed rotation of the motor 1 into a rotation speed suitable for the screw rod 53 of the chassis vehicle. The transmission shaft is installed on the positioning plate and the mounting plate 22 through the bearing 26, ensuring the stable rotation of the transmission shaft, and the coupling 25 ensures the reliable connection between the transmission shaft and the screw rod 53 of the chassis vehicle, so that the power can be smoothly transmitted to the chassis vehicle to drive it to move.

[0050] The controller 4 is mounted on the mounting plate 22 to facilitate electrical connection with the motor 1. The controller 4 can accurately control the rotation direction, speed, start and stop operations of the motor 1, thereby achieving accurate control of the movement of the chassis. By embedding corresponding programming and control logic in the storage component of the controller 4, the controller 4 controls the chassis to move according to a predetermined program, such as accurate positioning and safe stopping during the operation of the switch cabinet.

[0051] The external mobile drive device in the present invention is applied to the switch cabinet equipped with a mechanical chassis, which solves the problem that the maintenance process of the existing built-in electric chassis of the switch cabinet is inconvenient when a fault occurs. At the same time, it is installed by fasteners, without complicated installation process and a lot of modification work, which is convenient for upgrading and modifying the existing switch cabinet.

[0052] Example 2

[0053] In another embodiment of the external mobile drive device provided in the embodiment of the present application, a hand wheel 8 is further included; the hand wheel 8 is installed at one end of the transmission shaft facing the outside of the second positioning plate 31 .

[0054] In this embodiment, the transmission shaft has one end facing the outside of the second positioning plate 31, and the end is provided with a mounting structure (for example, a square structure) matching the handwheel 8, and the mounting structure is provided with a threaded mounting hole; the handwheel 8 is sleeved on the rotating shaft at this end, and the handwheel 8 is fastened to the transmission shaft by screws passing through the threaded mounting holes of the mounting structure.

[0055] The hand wheel 8 drives the transmission shaft to rotate, thereby driving the screw rod 53 to rotate to achieve the movement of the nut structure of the chassis vehicle.

[0056] An external mobile drive device in this embodiment is connected to the hand wheel 8 via a transmission shaft. When a fault is found in the drive device, the original manual operation function is not affected. Basic operation can still be guaranteed during the maintenance of the equipment 6, thereby improving the flexibility of the use of the drive device.

[0057] Example 3

[0058] The embodiment of the present application provides a chassis vehicle, which is used in a switch cabinet and includes an external mobile drive device 10, fasteners and a frame;

[0059] A fastener, which is disposed in the switch cabinet, one end of which passes through the cabinet door panel 51 of the switch cabinet and is connected to the connection hole of the first positioning plate 33;

[0060] The fasteners may be bolts, screws or other connecting and fixing parts, which firmly fix the external mobile drive device on the cabinet door panel 51 of the switch cabinet. It is ensured that the drive device will not be displaced due to vibration or other external forces during operation, so as to ensure that the drive device can stably provide power to the chassis vehicle. The problem of inaccurate transmission or even damage to the chassis vehicle and other equipment 6 in the switch cabinet due to the loose fixing of the drive device is avoided.

[0061] The frame is movably arranged in the switch cabinet, and a nut structure is fixedly arranged on the frame. The nut structure is sleeved on the screw rod 53. When the screw rod 53 rotates, the frame is driven to move forward and backward through the nut structure;

[0062] The frame is the main body of the carrying device 6, and its movable setting allows it to be adjusted in position in the switch cabinet. The rotation of the screw rod 53 is converted into the linear motion of the nut structure, and the nut structure slides with the track 54 to perform linear motion, thereby driving the frame to move. This transmission method can achieve precise position control and meet the requirements for the position of the chassis during the operation of the switch cabinet. For example, when the switch cabinet is opening and closing, the frame needs to be accurately moved to the specified position.

[0063] The external mobile drive device 10 is arranged outside the cabinet door panel 51 of the switch cabinet, and the external mobile drive device 10 is connected to the screw rod 53 of the frame through a coupling 25.

[0064] The external design arranges the drive device outside the cabinet door panel 51 for easy installation, maintenance and overhaul. When a fault occurs, maintenance personnel can more easily access the drive device for maintenance operations without having to go deep into the switch cabinet.

[0065] Example 4

[0066] An embodiment of the present application provides a switch cabinet, including a chassis vehicle, a device 6 and a limit switch 7; the device 6 is installed on the nut structure of the chassis vehicle; two limit switches 7 are arranged at intervals on the cabinet side panel 52 of the switch cabinet, which are used to detect the position of the device 6 on the chassis vehicle; the limit switch 7 is connected to the controller 4 for receiving the signal of the limit switch 7.

[0067] In this embodiment, the limit switch 7 is used in the switch cabinet to detect the position of the device 6 on the chassis vehicle. By arranging two limit switches 7 at intervals on the cabinet side plate 52 of the switch cabinet, it is possible to accurately monitor whether the device 6 reaches the predetermined position. This is very important for the installation, operation and maintenance of the device 6.

[0068] The limit switch 7 is connected to the controller 4 and can receive and send signals. When the device 6 on the chassis moves to the position where the limit switch 7 is located, the limit switch 7 will be triggered. When the device 6 contacts or approaches the limit switch 7, the sensing element of the limit switch 7 will change, causing the limit switch 7 to generate an electrical signal and send this signal to the controller 4. After receiving the signal from the limit switch 7, the controller 4 can perform corresponding operations according to the preset program. For example, if the device 6 reaches a certain position, the controller 4 can stop the movement of the chassis, or start other related operations to ensure the accurate installation and operation of the device 6.

[0069] The limit switch 7 plays an important role in ensuring the accurate position of the device 6 in this switch cabinet. Its working principle is to detect the position of the device 6 by induction and transmit the signal to the controller 4 for corresponding operation.

[0070] In summary, the foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various choices and changes to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention after reading this specification, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An external mobile drive device, applied to a switch cabinet provided with a mechanical chassis vehicle, characterized in that: include: A sealing shell, one end surface of which is arranged on a door panel of the switch cabinet; A motor, which is arranged on the other end surface of the enclosure, and the motor output shaft faces the interior of the enclosure; A transmission component, whose transmission front end portion is arranged inside the enclosure and is drivingly connected to the output shaft of the motor, and whose transmission end portion faces the outside of the enclosure and is connected to the screw rod of the chassis vehicle, and is used to drive the switch cabinet chassis vehicle; The controller is arranged inside the shell, and the controller is connected to the motor and controls the rotation of the motor.

2. The external mobile drive device according to claim 1, characterized in that: The enclosure comprises a first positioning plate, a second positioning plate and a mounting post; the first positioning plate and the second positioning plate are connected via the mounting post.

3. The external mobile drive device according to claim 2, characterized in that: The first positioning plate is arranged on a door panel of the switch cabinet; and the motor is arranged on the second positioning plate.

4. The external mobile drive device according to claim 2, characterized in that: The first positioning plate is provided with a connecting hole for connecting with a door panel of a switch cabinet.

5. The external mobile drive device according to claim 2, characterized in that: The transmission component includes a mounting plate, a first gear, a transmission chain, a second gear, a bearing, a transmission shaft and a coupling; The mounting plate is arranged between the first positioning plate and the second positioning plate, and both ends are connected to the mounting columns respectively; the first gear is connected to the output shaft of the motor; the second gear is sleeved on the rotating shaft; the first gear and the second gear are connected by meshing transmission through the transmission chain; One end of the transmission shaft is connected to the second positioning transmission by sleeve-engaging the bearing; the other end of the transmission shaft is connected to the mounting plate transmission by sleeve-engaging the bearing, and this end of the transmission shaft is provided with an outer shaft head facing the outside of the first positioning plate, and is connected to the screw joint of the mechanical chassis vehicle through the coupling.

6. The external mobile drive device according to claim 5, characterized in that: It also includes a hand wheel; the hand wheel is installed at one end of the transmission shaft facing the outer side of the second positioning plate.

7. The external mobile drive device according to claim 6, characterized in that: The controller is mounted on the mounting plate.

8. A chassis vehicle, used in a switch cabinet, characterized in that: It comprises a fastener, a frame and an external mobile drive device as claimed in any one of claims 1 to 7; A fastener, which is arranged in the switch cabinet, one end of which passes through the cabinet door panel of the switch cabinet and is connected to the connecting hole of the first positioning plate; A frame, which is movably arranged in the switch cabinet, and a nut structure is fixedly arranged on the frame, and the nut structure is sleeved on the screw rod. When the screw rod rotates, the frame is driven to move forward and backward through the nut structure; The externally mounted mobile driving device is arranged on the outside of the cabinet door panel of the switch cabinet, and the externally mounted mobile driving device is connected to the screw rod of the frame through a coupling.

9. A light-opening cabinet, characterized in that: It comprises a device, a limit switch and the chassis vehicle as claimed in claim 8; the device is installed on the nut structure of the chassis vehicle; two limit switches are arranged at intervals on the cabinet side panel of the switch cabinet for detecting the position of the device on the chassis vehicle; the limit switch is connected to the controller for receiving the signal of the limit switch.

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