Lightning protection type electro-hydraulic actuating mechanism

Abstract

The utility model discloses a lightning protection type electro-hydraulic actuating mechanism which comprises an actuator, a control board is fixedly connected in the actuator, one end of the control board is fixedly connected with a plug board, the other end of the control board is fixedly connected with a protection board through a connecting line, and the surface of the protection board is connected with a protection device in parallel through a circuit. One side of the protection plate is connected with a conductive rod through a circuit, a connecting hole is formed in the end of the conductive rod, a connector is fixedly clamped to one side of the connecting hole, one end of the connector is fixedly connected with a conductive wire, one end of the conductive wire is fixedly connected with an embedded cylinder, and one end of the outer surface of the conductive rod is fixedly connected with a conical rod. A current-conducting plate is slidably installed on one side of the current-conducting rod, an avoiding through hole is formed in the surface of the current-conducting plate, external grounding can be achieved for protection, the protection mode can be switched by adjusting the installation position, and high adaptability, safety and stability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of lightning protection, and more specifically, to a lightning-proof electro-hydraulic actuator. Background Technology

[0002] An electro-hydraulic actuator is a direct-drive electro-hydraulic servo system, also known as a valveless servo control system. It controls the displacement, speed, and direction of movement of a hydraulic cylinder by controlling the speed and direction of rotation of an AC servo motor, thereby achieving high-thrust, high-speed motion control. To ensure the safety of the control operation, it needs to be used in conjunction with a lightning protection structure to avoid damage caused by high-voltage breakdown.

[0003] In existing electro-hydraulic actuator lightning protection structures, components such as gas discharge tubes, varistors, and TVS are added to the control system module to form a discharge and pressure relief structure. However, there is a lack of combined connecting conductive rods to install conductive wires and pre-embedded cylinders, making it impossible to use external grounding devices to conduct charges, which affects the lightning protection effect. Furthermore, it is not conducive to combined installation to adjust the installation method, affecting the stability of use. Improvements are needed. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a lightning-proof electro-hydraulic actuator. By installing a protective plate and protective devices on the control board inside the actuator, a lightning protection circuit can be formed for protection. Furthermore, by installing conductive wires and pre-embedded cylinders on fixed conductive rods, combined with the conductive plate on the surface for separate installation, external grounding can be used for protection. The installation position can also be adjusted to switch protection modes, making it highly adaptable, safe, and stable.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A lightning-proof electro-hydraulic actuator includes an actuator, a control board fixedly connected inside the actuator, an insert plate fixedly connected to one end of the control board, and a protective plate fixedly connected to the other end of the control board via a connecting wire. Protective devices are connected in parallel to the surface of the protective plate via a circuit. A conductive rod is connected to one side of the protective plate via a circuit. A connecting hole is provided at the end of the conductive rod, and a connector is fixedly snapped into one side of the connecting hole. A conductive wire is fixedly connected to one end of the connector, and a pre-embedded cylinder is fixedly connected to one end of the conductive wire. A tapered rod is fixedly connected to one end of the outer surface of the conductive rod, and a conductive plate is slidably mounted on one side of the conductive rod. An avoidance through hole is provided on the surface of the conductive plate, and a tapered assembly block is fixedly connected inside the avoidance through hole.

[0007] Furthermore, the clearance through hole is slidably connected to the outer side of the conductive rod and has a connection gap.

[0008] Furthermore, there are three conical assembly blocks, which are evenly distributed at equal angles inside the avoidance through hole, and the conical assembly blocks are located on one side of the conical rod.

[0009] Furthermore, there are three conductive rods and three embedded cylinders, which are connected to one side surface of the actuator at equal intervals. By installing three conductive rods and three embedded cylinders, current can be diverted and pressure reduced from different positions. They can also be used in parallel and in combination, which is safe, stable and highly adaptable.

[0010] Furthermore, the actuator is fixedly connected to both ends with positioning threaded rods, which are located at both ends of the conductive plate.

[0011] Furthermore, insulating connecting rings are fixedly connected to both ends of the conductive plate, and the insulating connecting rings are slidably mounted on the surface of the positioning threaded rod.

[0012] Furthermore, a clamping cylinder is threaded onto one end of the positioning threaded rod. The clamping cylinder is clamped to one side of the insulating connecting ring. The insulating connecting ring and the clamping cylinder can be installed together by the positioning threaded rod, which is conducive to locking and fixing the conductive plate and avoiding interference. After the thread is loosened, the conductive plate can be pushed to snap and fix it, which is convenient for combination and has high adaptability.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) This solution can form a lightning protection circuit by installing a protective plate and protective devices on the control board inside the actuator. It can also install conductive wires and pre-embedded cylinders by installing them on a fixed conductive rod, and then install them separately with the conductive plate on the surface. It can be grounded externally for protection, and the installation position can be adjusted to switch the protection mode. It is highly adaptable, safe and stable.

[0015] (2) By installing three conductive rods and pre-embedded cylinders, current can be diverted and pressure reduced from different positions. They can also be used in parallel and combined. They are safe, stable and highly adaptable.

[0016] (3) The insulating connecting ring and the clamping cylinder are installed by the positioning thread rod, which can be combined for positioning, which is conducive to locking and fixing the conductive plate and avoiding interference. After the thread adjustment is loosened, the conductive plate can be pushed to be clamped and fixed, which is convenient for combination and has high adaptability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0019] Figure 3 This is a partial cross-sectional view of the connection between the conductive rod and the conductive plate of this utility model.

[0020] Figure 4 This is a partial structural diagram of the connection between the conductive rod and the embedded cylinder of this utility model;

[0021] Figure 5 This is a schematic diagram of the conductive plate of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1 Actuator, 11 Control board, 12 Insert plate, 13 Connecting wire, 14 Protective plate, 15 Protective device, 16 Conductive rod, 17 Connecting hole, 2 Connector, 21 Conductive wire, 22 Embedded cylinder, 23 Tapered rod, 24 Conductive plate, 25 Clearance through hole, 26 Tapered assembly block, 27 Positioning threaded rod, 28 Insulating connecting ring, 29 Clamping cylinder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 4 and Figure 5 A lightning-proof electro-hydraulic actuator includes an actuator 1. A control board 11 is fixedly connected inside the actuator 1. One end of the control board 11 is fixedly connected to a plug plate 12. The other end of the control board 11 is fixedly connected to a protective plate 14 via a connecting wire 13. Protective devices 15, such as gas discharge tubes, varistors, and TVS diodes, are connected in parallel via a circuit on the surface of the protective plate 14. These components can be combined to form a lightning protection circuit, thereby providing safety protection for the control board 11. A conductive rod 16 is connected to one side of the protective plate 14 via a circuit. The end of the conductive rod 16 has a connection hole 17. A connector 2 is fixedly snapped onto one side of the connection hole 17. A conductive wire 21 is fixedly connected to one end of the connector 2. One end of the conductive rod 16 is fixedly connected to a pre-embedded cylinder 22, and one end of the outer surface of the conductive rod 16 is fixedly connected to a tapered rod 23. A conductive plate 24 is slidably installed on one side of the conductive rod 16. The surface of the conductive plate 24 is provided with a clearance through hole 25. A tapered assembly block 26 is fixedly connected inside the clearance through hole 25. The connector 2 is installed by snapping the conductive rod 16, and the pre-embedded cylinder 22 is connected to the conductive wire 21. An external grounding device can be installed to improve the lightning protection effect. It can conduct charge to reduce voltage, thereby providing safety protection for the control board 11 and the protective device 15. The separate installation is convenient for positioning and use. This can protect the control board and ensure the safety of the electro-hydraulic actuator control. It is also convenient for combined use.

[0026] Please see Figure 2 and Figure 3 The bypass through hole 25 is slidably connected to the outer side of the conductive rod 16 and has a connection gap. There are three conical combination blocks 26, which are evenly distributed at equal angles inside the bypass through hole 25. The conical combination blocks 26 are located on one side of the conical rod 23. There are three conductive rods 16 and three embedded cylinders 22, which are connected to one side surface of the actuator 1 at equal intervals. By installing three conductive rods and embedded cylinders, current can be diverted and pressure reduced from different positions. They can also be used in parallel and combined. It is safe, stable and highly adaptable.

[0027] Please see Figure 3 and Figure 5 The actuator 1 has two fixedly connected positioning threaded rods 27 at both ends, which are located at both ends of the conductive plate 24. Insulating connecting rings 28 are fixedly connected to both ends of the conductive plate 24, and are slidably mounted on the surface of the positioning threaded rods 27. A clamping cylinder 29 is threadedly installed at one end of the positioning threaded rod 27, and is clamped to one side of the insulating connecting ring 28. By installing the insulating connecting ring and clamping cylinder through the positioning threaded rod, they can be combined for positioning, facilitating the locking and fixing of the conductive plate and preventing interference. Loosening the threaded adjustment allows the conductive plate to be pushed for locking and fixing, facilitating assembly. It is highly adaptable. When not in use, the threaded clamping cylinder 29 can be used to tighten the insulating connecting ring 28, which can press the conductive plate 24 onto the surface of the actuator 1. It can be separated from the conductive rod 16 and will not be interconnected, so it can be protected separately, which is convenient for installation and use. After loosening the clamping cylinder 29, the conductive plate 24 can be pushed to push the clearance through hole 25 to the position of the tapered rod 23. The tapered combination block 26 on the side is engaged with the surface of the tapered rod 23 and can be connected and positioned with the conductive rod 16, so that the separately connected conductive rods 16 can be connected in parallel, thus combining protection. It is highly adaptable and convenient for installation and use.

[0028] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A lightning-proof electro-hydraulic actuator, comprising an actuator (1), wherein a control board (11) is fixedly connected inside the actuator (1), and a plug plate (12) is fixedly connected to one end of the control board (11), characterized in that: The other end of the control board (11) is fixedly connected to a protective plate (14) via a connecting line (13). A protective device (15) is connected in parallel to the surface of the protective plate (14) via a circuit. A conductive rod (16) is connected to one side of the protective plate (14) via a circuit. A connecting hole (17) is provided at the end of the conductive rod (16). A connector (2) is fixedly snapped to one side of the connecting hole (17). A conductive wire (21) is fixedly connected to one end of the connector (2). A pre-embedded cylinder (22) is fixedly connected to one end of the conductive wire (21). A tapered rod (23) is fixedly connected to one end of the outer surface of the conductive rod (16). A conductive plate (24) is slidably installed on one side of the conductive rod (16). An avoidance through hole (25) is provided on the surface of the conductive plate (24). A tapered assembly block (26) is fixedly connected inside the avoidance through hole (25).

2. The lightning-protected electro-hydraulic actuator according to claim 1, characterized in that: The clearance through hole (25) is slidably connected to the outer side of the conductive rod (16) and has a connection gap.

3. The lightning-protected electro-hydraulic actuator according to claim 1, characterized in that: There are three conical assembly blocks (26), which are evenly distributed at equal angles inside the clearance through hole (25). The conical assembly blocks (26) are located on one side of the conical rod (23).

4. The lightning-protected electro-hydraulic actuator according to claim 1, characterized in that: There are three conductive rods (16) and three embedded cylinders (22), which are connected at equal intervals to one side surface of the actuator (1).

5. The lightning-protected electro-hydraulic actuator according to claim 1, characterized in that: The actuator (1) is fixedly connected to two ends with positioning threaded rods (27), which are located at both ends of the conductive plate (24).

6. The lightning-protected electro-hydraulic actuator according to claim 1, characterized in that: Insulating connecting rings (28) are fixedly connected to both ends of the conductive plate (24), and the insulating connecting rings (28) are slidably installed on the surface of the positioning threaded rod (27).

7. The lightning-protected electro-hydraulic actuator according to claim 5, characterized in that: One end of the positioning threaded rod (27) is threaded with a clamping cylinder (29), which is clamped to one side of the insulating connecting ring (28).

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