Electric control switch isolation knife transmission shaft with reinforcing structure

Abstract

The utility model discloses a kind of electric control switch isolation knife transmission shafts with reinforcing structure, it is related to transmission shaft field, including mounting plate, one side of mounting plate is provided with limiting reinforcing assembly, mounting plate both sides are provided with mounting hole, mounting hole is provided with multiple groups, every group mounting hole side is connected with bolt component by screw thread, mounting plate is fixedly installed on workbench by multiple bolt components;Mounting plate top is fixedly connected with support plate, support plate is provided with two groups, rotating main shaft component is rotatably connected between two groups of support plate;Limiting reinforcing assembly includes fixed plate fixedly connected to one side of mounting plate, fixed plate side is fixedly connected with hydraulic cylinder, one side of hydraulic cylinder is provided with limit disc, limit disc is fixedly connected with hydraulic cylinder output end, this setting adds reinforcing limit structure in isolation knife transmission shaft side, and then rotating main shaft component is stably limited, and then reach the purpose of preventing transmission shaft and isolation moving contact assembly from deviating, improve device practicability.

Description

Technical Field

[0001] This utility model relates to the field of drive shafts, and more specifically, to a drive shaft for an electrically controlled switch isolating knife with a reinforced structure. Background Technology

[0002] The drive shaft of the isolating switch is a key component in an electrically controlled switch used to connect and drive the isolating switch. It is typically made of stainless steel, featuring strong corrosion resistance, low rotational resistance, and small clearance, ensuring flexible and reliable rotation. The drive shaft connects and drives the isolating switch in the electrically controlled switch. It transmits power to the isolating switch through rotational motion, enabling it to complete the opening and closing operation. The transmission mechanism in the isolating switch drive shaft consists of crank arms, connecting rods, shaft teeth, or operating insulators. Its function is to receive the torque from the operating mechanism and transmit the motion to the contacts through these components to complete the opening and closing actions of the isolating switch.

[0003] Based on this, a search on the patent website revealed that Chinese patent application number CN201810636207.6 discloses a three-position disconnect switch. The disconnect switch includes a gas tank shell, a moving contact assembly, a drive shaft, a grounding contact, a stationary contact, a main busbar, and an operating mechanism. The drive shaft is a through shaft structure and is connected to the moving contact assembly for transmission. It is used to drive the moving contact assembly to selectively contact the grounding contact and the stationary contact, thereby enabling the three-position disconnect switch to switch between the closed position, the disconnected position, and the grounded position. It can be seen that the above-mentioned patent application has the following shortcomings: When the traditional isolating knife drive shaft is in use, the drive motor drives the main shaft to rotate, which in turn drives the components to rotate. The drive shaft is connected to the isolating moving contact assembly to complete the opening and closing action of the isolating switch. Since the isolating knife drive shaft lacks a reinforcing and limiting structure, the main shaft cannot be stably limited, which can easily lead to the problem of displacement of the drive shaft and the isolating moving contact assembly, reducing the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide a reinforced drive shaft for an electrical control switch isolating knife. Using this device solves the problem in the above-mentioned traditional isolating knife drive shaft, where the drive motor drives the main shaft to rotate, which in turn drives the components to rotate, to complete the opening and closing action of the isolating switch. However, due to the lack of a reinforced limiting structure, the main shaft cannot be stably limited, which easily leads to the drive shaft offset and reduces the practicality of the device.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: a transmission shaft for an electrically controlled switch isolating knife with a reinforced structure, comprising a mounting plate, a limit reinforcement component provided on one side of the mounting plate, mounting holes provided on both sides of the mounting plate, multiple sets of mounting holes provided, a bolt component threaded to one side of each set of mounting holes, the mounting plate being fixedly mounted on a workbench by multiple sets of bolt components; a support plate fixedly connected to the top of the mounting plate, two sets of support plates provided, a rotating spindle component rotatably connected between the two sets of support plates; the limit reinforcement component includes a fixing plate fixedly connected to one side of the mounting plate, a hydraulic cylinder fixedly connected to one side of the fixing plate, a limit plate provided on one side of the hydraulic cylinder, the limit plate being fixedly connected to the output end of the hydraulic cylinder, and insertion rods evenly distributed on one side of the limit plate, multiple sets of insertion rods provided.

[0006] Preferably, a drive motor is provided on one side of the mounting plate, and a second bevel gear is rotatably connected to the upper end of the mounting plate, the second bevel gear being fixedly connected to the output end of the drive motor.

[0007] Preferably, a first bevel gear is fixedly connected to the outer periphery of the rotating spindle component, and the first bevel gear is meshed with one side of the second bevel gear.

[0008] Preferably, the rotating spindle component is fixedly connected to a rotating connecting component on its outer periphery, and the rotating connecting component is provided in three sets.

[0009] Preferably, the limiting and reinforcing assembly further includes a connecting rod fixedly connected to one end of the rotating spindle component, and a connecting plate is fixedly connected to one side of the connecting rod.

[0010] Preferably, the connecting plate has a cavity in the middle, and slots are evenly distributed on one side of the connecting plate. There are multiple sets of slots, and each set of slots matches each set of insert rods.

[0011] Preferably, a plug is fixedly connected to one side of the limiting plate, and the plug matches the insertion cavity.

[0012] Preferably, a limiting rod is fixedly connected between a set of the support plates and the fixed plate, and a limiting sliding plate is slidably connected to the outer periphery of the limiting rod. One side of the limiting sliding plate is fixedly connected to one side of the limiting disk; the connecting disk and the limiting disk are matched with each other.

[0013] Compared with the prior art, the technical solution provided by this utility model has the following advantages: The drive shaft of the isolating switch is a key component in an electrical switch used to connect and drive the isolating switch. It is typically made of stainless steel, featuring strong corrosion resistance, low rotational resistance, and small clearance, ensuring flexible and reliable rotation. The drive shaft connects and drives the isolating switch; it transmits power to the isolating switch through rotational motion, enabling it to complete the opening and closing operations. The transmission mechanism in the isolating switch drive shaft consists of crank arms, connecting rods, shaft teeth, or operating insulators. Its function is to receive the torque from the operating mechanism and transmit the motion to the contacts through these components to complete the opening and closing actions of the isolating switch. The isolating switch drive shaft, also known as an integrated drive shaft, can be operated in drive motor mode. The drive motor rotates the second bevel gear, which in turn drives the first bevel gear and the rotating main shaft assembly. The rotation of the rotating main shaft assembly drives three sets of rotating connecting components, which are connected to the isolating moving contact assembly. The rotation of the isolating moving contact assembly completes the opening and closing action of the isolating switch, thereby operating the knife switch to perform isolation, grounding, and closing actions. The mounting plate is fixed to the workbench with multiple sets of bolts. The mounting plate is flat and forms a reinforced structure with each bearing seat and shaft. Each support and bearing seat is embedded, eliminating the risk of displacement. The mounting plate installation is more stable, making the closing and grounding actions more secure and effective.

[0014] When using the device, the drive motor drives the rotating spindle component to rotate. However, the rotating spindle component lacks a limiting and reinforcing mechanism, making it prone to positional deviation, which can affect the normal operation of the electrically controlled switch isolation knife drive shaft. Therefore, this application adds a limiting and reinforcing component to one side of the mounting plate. When the rotating spindle component rotates to the required position, it needs to be fixed. The user activates the hydraulic cylinder, which drives the limiting plate to extend. The limiting plate moves towards the connecting plate until each set of insert rods is inserted into the corresponding slot, and the insert is fully inserted into the insert cavity. Then, the limiting plate engages with one side of the connecting plate, thus fixing the connecting plate. The connecting rod and rotating spindle are fixed in place, preventing them from shifting or rotating erroneously. When the spindle needs to rotate again, the hydraulic cylinder retracts, causing the limiting plate to retract until it is completely away from the connecting plate. This causes the insert rod to separate from the slot and the insert post to separate from the cavity, thus removing the reinforcing effect of the limiting plate. The connecting plate, connecting rod, and rotating spindle then return to their free state. This design, by adding a reinforcing limiting structure to one side of the isolation knife drive shaft, stably limits the rotating spindle, preventing the drive shaft and isolation contact assembly from shifting and improving the device's practicality. Attached Figure Description

[0015] Figure 1This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the isolation knife drive shaft and multiple sets of fixing bolts of this utility model; Figure 3 This is a structural diagram of the isolation knife drive shaft of this utility model; Figure 4 This is a structural diagram of the limiting and reinforcing component of this utility model; Figure 5 This is a partial structural diagram of the limiting and reinforcing component of this utility model.

[0016] In the diagram: 1. Mounting plate; 2. Limiting and reinforcing assembly; 11. Mounting hole; 12. Bolt assembly; 13. Support plate; 14. Drive motor; 15. Rotating spindle assembly; 151. Connecting rod; 16. First bevel gear; 17. Second bevel gear; 18. Rotating connecting assembly; 21. Connecting disc; 22. Fixing plate; 23. Hole and slot; 24. Insertion cavity; 25. Limiting rod; 251. Limiting sliding plate; 26. Hydraulic cylinder; 27. Limiting disc; 28. Insertion rod; 29. ​​Insertion post. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0019] Combination Figures 1-5 A reinforced drive shaft for an electrically controlled switch isolating knife includes a mounting plate 1. A limit reinforcement component 2 is provided on one side of the mounting plate 1. Mounting holes 11 are provided on both sides of the mounting plate 1, and multiple sets of mounting holes 11 are provided. A bolt component 12 is threadedly connected to one side of each set of mounting holes 11. The mounting plate 1 is fixedly mounted on a workbench by multiple sets of bolt components 12. A support plate 13 is fixedly connected to the top of the mounting plate 1. Two sets of support plates 13 are provided. A rotating spindle component 15 is rotatably connected between the two sets of support plates 13. The limit reinforcement component 2 includes a fixing plate 22 fixedly connected to one side of the mounting plate 1. A hydraulic cylinder 26 is fixedly connected to one side of the fixing plate 22. A limit plate 27 is provided on one side of the hydraulic cylinder 26. The limit plate 27 is fixedly connected to the output end of the hydraulic cylinder 26. Insert rods 28 are evenly distributed on one side of the limit plate 27, and multiple sets of insert rods 28 are provided.

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Example: Please see Figures 1-5 A drive motor 14 is provided on one side of the mounting plate 1. A second bevel gear 17 is rotatably connected to the upper end of the mounting plate 1. The second bevel gear 17 is fixedly connected to the output end of the drive motor 14. A first bevel gear 16 is fixedly connected to the outer periphery of the rotating spindle component 15. The first bevel gear 16 is meshed with one side of the second bevel gear 17. A rotating connecting component 18 is fixedly connected to the outer periphery of the rotating spindle component 15. Three sets of rotating connecting components 18 are provided.

[0022] The limiting and reinforcing assembly 2 also includes a connecting rod 151 fixedly connected to one end of the rotating spindle component 15. A connecting plate 21 is fixedly connected to one side of the connecting rod 151. A cavity 24 is provided in the middle of the connecting plate 21. Holes 23 are evenly distributed on one side of the connecting plate 21. Multiple sets of holes 23 are provided. Each set of holes 23 matches each set of insert rods 28. An insert post 29 is fixedly connected to one side of the limiting plate 27. The insert post 29 matches the cavity 24. A limiting rod 25 is fixedly connected between a set of support plates 13 and a fixed plate 22. A limiting sliding plate 251 is slidably connected to the outer periphery of the limiting rod 25. One side of the limiting sliding plate 251 is fixedly connected to one side of the limiting plate 27. The connecting plate 21 matches the limiting plate 27.

[0023] In summary, the working principle is as follows: The drive shaft of the isolating switch in an electric control switch is a key component used to connect and drive the isolating switch. It is typically made of stainless steel, featuring strong corrosion resistance, low rotational resistance, and small clearance, ensuring flexible and reliable rotation. The drive shaft connects and drives the isolating switch; it transmits power to the isolating switch through rotational motion, enabling it to complete the opening and closing operation. The transmission mechanism in the isolating switch drive shaft consists of crank arms, connecting rods, shaft teeth, or operating insulators. Its function is to receive the torque from the operating mechanism and transmit the motion to the contacts through these components to complete the opening and closing actions of the isolating switch. The isolating switch drive shaft, also known as an integrated drive shaft, can be operated by activating the drive motor 14. The drive motor 14 drives the second bevel gear 17 to rotate, which in turn drives the first bevel gear 16 and the rotating main shaft component 15 to rotate. The rotation of the rotating main shaft component 15 drives the three sets of rotating connecting components 18 to rotate. The three sets of rotating connecting components 18 are respectively connected to the isolating moving contact assembly. The rotation of the isolating moving contact assembly completes the opening and closing action of the isolating switch, thereby operating the knife switch to perform isolation, grounding, and closing actions. The mounting plate 1 is fixedly mounted on the workbench by multiple sets of bolt components 12. The mounting plate 1 is flat, forming a reinforced structure with each bearing seat and shaft. Each support seat and bearing seat is embedded, eliminating the risk of displacement. The mounting plate 1 is more stable, making the closing and grounding actions more secure and effective. When using the device, the drive motor 14 drives the rotating spindle component 15 to rotate. However, the rotating spindle component 15 lacks a limiting and reinforcing mechanism, which can easily lead to positional deviation and affect the normal use of the electrical control switch isolation knife drive shaft. Therefore, this application adds a limiting and reinforcing component 2 to one side of the mounting plate 1. When the rotating spindle component 15 rotates to the required position, it needs to be fixed. The user starts the hydraulic cylinder 26, which drives the limiting plate 27 to extend. The limiting plate 27 moves towards the connecting plate 21 until each set of insert rods 28 is inserted into the corresponding slot 23, and the insert post 29 is fully inserted into the insert cavity 24. Then, the limiting plate 27 engages with one side of the connecting plate 21, thereby limiting and fixing the connecting plate 21. Consequently, the connecting rod 151 and the rotating spindle component 15 are limited and fixed, preventing the rotating spindle component 15 from shifting or rotating erroneously. When the rotating spindle component 15 needs to rotate again, the hydraulic cylinder 26 retracts, causing the limiting plate 27 to retract until the limiting plate 27 is completely away from the connecting plate 21. The insert rod 28 separates from the slot 23, and the insert post 29 separates from the cavity 24. As a result, the connecting plate 21 loses the reinforcing effect of the limiting plate 27, and the connecting plate 21, the connecting rod 151, and the rotating spindle component 15 return to their free state. This setting, by adding a reinforcing limiting structure on one side of the isolation knife drive shaft, stabilizes and limits the rotating spindle component 15, thereby preventing the drive shaft and the isolation moving contact assembly from shifting, and improving the practicality of the device.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drive shaft for an electrically controlled switch isolating knife with a reinforced structure, comprising a mounting plate (1), wherein a limit reinforcement component (2) is provided on one side of the mounting plate (1), characterized in that: The mounting plate (1) has mounting holes (11) on both sides. There are multiple sets of mounting holes (11). Each set of mounting holes (11) has a bolt component (12) threadedly connected to one side. The mounting plate (1) is fixedly mounted on the workbench by multiple sets of bolt components (12). The top of the mounting plate (1) is fixedly connected to a support plate (13). There are two sets of support plates (13). A rotating spindle component (15) is rotatably connected between the two sets of support plates (13). The limiting and reinforcing component (2) includes a fixing plate (22) fixedly connected to one side of the mounting plate (1). A hydraulic cylinder (26) is fixedly connected to one side of the fixing plate (22). A limiting plate (27) is provided on one side of the hydraulic cylinder (26). The limiting plate (27) is fixedly connected to the output end of the hydraulic cylinder (26). Insert rods (28) are evenly distributed on one side of the limiting plate (27). There are multiple sets of insert rods (28).

2. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 1, characterized in that: A drive motor (14) is provided on one side of the mounting plate (1), and a second bevel gear (17) is rotatably connected to the upper end of the mounting plate (1). The second bevel gear (17) is fixedly connected to the output end of the drive motor (14).

3. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 2, characterized in that: The outer periphery of the rotating spindle component (15) is fixedly connected to a first bevel gear (16), which is meshed with one side of the second bevel gear (17).

4. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 3, characterized in that: The rotating spindle component (15) is fixedly connected to a rotating connecting component (18) on its outer periphery, and the rotating connecting component (18) is provided in three sets.

5. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 4, characterized in that: The limiting and reinforcing component (2) also includes a connecting rod (151) fixedly connected to one end of the rotating spindle component (15), and a connecting plate (21) is fixedly connected to one side of the connecting rod (151).

6. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 5, characterized in that: The connecting plate (21) has a cavity (24) in the middle and slots (23) are evenly distributed on one side of the connecting plate (21). There are multiple sets of slots (23), and each set of slots (23) matches each set of insert rods (28).

7. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 6, characterized in that: A pin (29) is fixedly connected to one side of the limiting plate (27), and the pin (29) matches the insertion cavity (24).

8. The electrically controlled switch isolation knife drive shaft with a reinforced structure according to claim 7, characterized in that: A limiting rod (25) is fixedly connected between a set of support plates (13) and a fixed plate (22). A limiting sliding plate (251) is slidably connected to the outer periphery of the limiting rod (25). One side of the limiting sliding plate (251) is fixedly connected to one side of the limiting disk (27). The connecting disk (21) matches the limiting disk (27).

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