A lightning protection device for a gantry crane, a machine and a method of use thereof

Abstract

The application relates to the technical field of engineering machinery, in particular to a door machine lightning protection device, machinery and a use method. The door machine lightning protection device comprises a rotating rod structure, an umbrella net structure and a conductive structure. The rotating rod structure comprises a rotating rod which is arranged in an insulating sleeve of the door machine. The umbrella net structure comprises a guide sleeve which is threadedly connected with the rotating rod and arranged on the outer periphery of the rotating rod. The guide sleeve is provided with conductive vertical rods which are arranged at intervals. The conductive vertical rods are surrounded by conductive horizontal rings which are arranged at intervals. The conductive horizontal rings have different radii, so that the umbrella net structure has different layer heights. The conductive structure comprises a conductive wire and a grounding carbon rod. One end of the conductive wire is connected with the rotating rod, and the other end is connected with the grounding carbon rod. In the lightning protection state, the conductive vertical rods are extended out of the insulating sleeve, the conductive horizontal rings are expanded into umbrella shapes along the circumferential direction of the conductive vertical rods, and the conductive horizontal rings and the conductive vertical rods form umbrella shapes to shield the door machine from lightning. The lightning is transmitted to the conductive wire through the rotating rod, and the conductive wire is transmitted to the ground through the grounding carbon rod. The application solves the problem that the lightning rod cannot cover the door machine and influences the protection effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a portal crane lightning protection device, machinery and a use method thereof. BACKGROUND

[0002] The portal crane for engineering is generally arranged at a high position, and is prone to electrical equipment failure due to lightning strike, which affects the operation of the equipment. If the failure cannot be timely eliminated, the engineering problem may be caused, and more serious consequences may be caused. Therefore, the lightning protection of the portal crane is very important. However, the lightning protection effect of the lightning rod used for the portal crane is poor, especially the lightning protection effect of the induced lightning is poor, and the surface of the portal crane cannot be completely covered, which affects the protection effect. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the defect that the lightning protection mode of the lightning rod of the portal crane in the prior art cannot cover the surface of the portal crane, and the protection effect is affected, so as to provide a portal crane lightning protection device, machinery and a use method thereof.

[0004] In order to solve the above problems, the present application provides a portal crane lightning protection device, comprising:

[0005] A rotating rod structure comprises a rotating rod, and the rotating rod is arranged in an insulating sleeve at the top of the portal crane.

[0006] An umbrella net structure comprises a guide sleeve threadedly connected with the rotating rod, and the guide sleeve is arranged on the outer periphery of the rotating rod. At least three conductive vertical rods are arranged on the upper periphery of the guide sleeve at intervals, and the conductive vertical rods have an arc. At least two conductive horizontal rings are arranged at intervals around the conductive vertical rods. The radii of each conductive horizontal ring are different, so that the layer height of the umbrella net structure when it is unfolded is also different.

[0007] A conductive structure comprises a conductive wire and a grounding carbon rod. One end of the conductive wire is fixedly connected with the tail end of the rotating rod, and the other end is connected with the grounding carbon rod. In the lightning protection state, the conductive vertical rods are extended out of the insulating sleeve, the conductive horizontal rings are unfolded into an umbrella shape along the circumferential direction of the conductive vertical rods, and the conductive horizontal rings and the conductive vertical rods form an umbrella-shaped structure covering above the portal crane, so as to shield the lightning from being transmitted to the rotating rod, and then to the conductive wire, and the conductive wire is transmitted to the ground through the grounding carbon rod and the track.

[0008] Optionally, a vertical rod connecting ball is arranged on the conductive vertical rod, and a horizontal ring connecting ring is connected with the conductive horizontal ring, and the horizontal ring connecting ring is sleeved on the conductive vertical rod.

[0009] Optionally, the diameters of the pole connecting balls on the different conductive vertical poles gradually increase from the outside to the direction of the guide sleeve, the diameters of the horizontal ring connecting ring holes on the conductive horizontal ring gradually increase from the outside to the direction of the guide sleeve, the diameters of the horizontal ring connecting ring holes matching the same layer are smaller than the diameters of the pole connecting balls, and in the lightning protection state, the conductive horizontal rings are hung at different heights of the conductive vertical poles.

[0010] Optionally, an insulating layer is arranged outside the insulating sleeve, and the insulating sleeve is embedded and installed in the door machine.

[0011] Optionally, the upper part of the insulating sleeve is funnel-shaped, an inner inclined surface of the funnel-shaped part is provided with a connecting plate, an outer ring of the connecting plate is provided with a conductive vertical pole sliding groove hole to guide and support the telescopic sliding of the conductive vertical pole, when the rotating rod rotates, the conductive vertical pole goes in and out of the sliding groove hole to drive the umbrella net to expand and shrink, an inner ring of the connecting plate is provided with a support plate, the support plate supports the control box and the power component, the support plate and the bearing plate are both made of insulating material to be insulated from the control cabinet, the storage battery, the power component in the control box, the control box shell and external lightning and static electricity, a central hole of the support plate is provided with an upper end bearing, the control box is connected with an electric control cabinet on a walking trolley of the door machine through a charging line, and the electric control cabinet charges the storage battery.

[0012] Optionally, the bottom of the rotating rod is provided with a hoop, the hoop is rotationally connected with the rotating rod through a bearing, the hoop is connected with the inner wall of the insulating sleeve through a support, and the guide sleeve is arranged on the rotating rod and moves up and down between the connecting plate and the hoop through the movement of the rotating rod.

[0013] Optionally, the power component is further arranged, the power component is connected with the rotating rod, the power component and the rotating rod are connected through a flexible coupling made of insulating material, and the power component is supported on the support plate through a support.

[0014] A machine comprises the door machine lightning protection device, and the machine further comprises walking wheels, the walking wheels are suitable for driving the door machine and the umbrella net structure to move on a track, and the upper surfaces of part of the track are provided with insulating pads.

[0015] A use method of the door machine lightning protection device comprises the following steps.

[0016] In the lightning protection state, the conductive vertical poles are extended out of the insulating sleeve, the conductive horizontal ring is expanded in the circumferential direction of the conductive vertical pole to become an umbrella shape, the conductive horizontal ring and the conductive vertical pole form an umbrella structure covering above the door machine, the door machine is shielded from lightning, the lightning is transmitted to the rotating rod, the rotating rod is transmitted to the conductive wire, the conductive wire is transmitted to the ground through the track and the grounding carbon rod.

[0017] In the non-lightning protection state, the conductive vertical poles are retracted into the insulating sleeve, and the conductive horizontal ring is retracted in the circumferential direction of the conductive vertical pole to be entirely collected into the insulating sleeve.

[0018] Optionally, comprising the following steps:

[0019] (1) Adjustment before use of the device, in non-thunderstorm weather, prepare for lightning protection in thunderstorm weather, connect the charging wire with the electric control cabinet on the walking trolley of the door machine, charge the battery by the electric control cabinet, disconnect the charging wire from the electric control cabinet after charging is completed, to avoid damage to the control box by lightning through the charging wire during thunderstorm;

[0020] (2) Door machine shift lightning protection, when thunderstorm weather is coming, the door machine first drives to the track provided with an insulating pad layer and stops, the walking wheel is insulated from the metal track through the insulating pad layer, and the track contacted by the grounding carbon rod is not provided with an insulating pad layer, to lead lightning into the ground;

[0021] (3) Umbrella net unfolding lightning protection, further control the control box by the door machine or remote wireless control, send an action instruction to the power part, drive the rotating rod to rotate, the guide sleeve drives the conductive vertical rod to stretch out upward, with the stretching out of the conductive vertical rod, the vertical rod connecting ball on the conductive vertical rod matches and contacts with the horizontal ring connecting ring, drives the conductive horizontal ring to also move upward and unfold layer by layer, when the conductive vertical rod is completely stretched out, each layer of the conductive horizontal ring is unfolded in place, and the umbrella net structure is unfolded and covers above the door machine;

[0022] (4) Equipment recovery operation after thunderstorm, after thunderstorm, according to the reverse operation of the above-mentioned umbrella net structure unfolding, the door machine or remote action instruction is received by the power part, the conductive vertical rod is driven to retract, drives the conductive horizontal ring to retract and is automatically stacked on the connecting plate, and the door machine can freely walk and work on the track.

[0023] The technical scheme of the present application has the following advantages:

[0024] 1.The gate machine lightning protection device provided by the present application comprises a rotating rod structure, the rotating rod structure comprising a rotating rod, the rotating rod being arranged in an insulating sleeve at the top of the gate machine; an umbrella net structure comprising a guide sleeve in rotational connection with the rotating rod, the guide sleeve being arranged on the outer periphery of the rotating rod, at least three electrically conductive vertical rods being fixedly arranged on the guide sleeve in a spaced manner, at least two electrically conductive horizontal rings being fixedly arranged between adjacent electrically conductive vertical rods, each electrically conductive horizontal ring having a different radius so that the height of the umbrella net structure is different when it is unfolded; and an electrically conductive structure comprising an electrically conductive wire and a grounding carbon rod, one end of the electrically conductive wire being fixedly connected to the tail end of the rotating rod and the other end being connected to the grounding carbon rod; in the lightning protection state, the electrically conductive vertical rods extend out of the insulating sleeve, the electrically conductive horizontal rings unfold along the circumferential direction of the electrically conductive vertical rods to become umbrella-shaped, the electrically conductive horizontal rings and the electrically conductive vertical rods form an umbrella-shaped structure covering the gate machine to shield lightning from being transmitted to the rotating rod, and then to the electrically conductive wire, and then to the ground through the grounding carbon rod and the track. When it is a thunderstorm, the electrically conductive vertical rods extend out of the insulating sleeve, the electrically conductive horizontal rings expand outward along the circumferential direction to support the electrically conductive vertical rods, so as to form an umbrella-shaped structure covering the gate machine by means of the electrically conductive vertical rods and the electrically conductive horizontal rings, so that lightning falling above the gate machine reaches the umbrella-shaped structure, and then is transmitted to the ground through the electrically conductive wire and the grounding carbon rod, thereby solving the problem that the lightning rod cannot cover the gate machine and achieving good protection effect for the gate machine.

[0025] 2.The gate machine lightning protection device provided by the present application, wherein the electrically conductive vertical rods are provided with vertical rod connecting balls, and the electrically conductive horizontal rings are connected with horizontal ring connecting rings, the horizontal ring connecting rings being sleeved on the electrically conductive vertical rods so as to connect the electrically conductive horizontal rings with the electrically conductive vertical rods.

[0026] 3.The gate machine lightning protection device provided by the present application, wherein the diameters of the vertical rod connecting balls on different electrically conductive vertical rods increase successively from the outside to the direction of the guide sleeve, the diameters of the horizontal ring connecting ring holes on the electrically conductive horizontal rings increase successively from the outside to the direction of the guide sleeve, the diameters of the horizontal ring connecting ring holes of the horizontal rings of the same layer are smaller than the diameters of the vertical rod connecting balls, and in the lightning protection state, the electrically conductive horizontal rings of different layers are hung at different heights of the electrically conductive vertical rods to facilitate smooth installation.

[0027] 4.The gate machine lightning protection device provided by the present application, wherein an insulating layer is arranged on the outside of the insulating sleeve, and the insulating sleeve is embedded in the gate machine to fix the insulating sleeve in the gate machine.

[0028] 5. The door machine lightning protection device provided by the present application, the upper part of the insulating sleeve is funnel-shaped, the inner inclined surface of the funnel is provided with a connecting plate, and an outer ring of the connecting plate is provided with a conductive vertical rod sliding slot to guide and support the telescopic sliding of the conductive vertical rod. When the rotating rod rotates, the conductive vertical rod enters and exits from the sliding slot to drive the umbrella net to expand and shrink; an inner ring of the connecting plate is provided with a support plate to support the control box and the power component, and the support plate and the bearing plate are both made of insulating material to be insulated from the control cabinet, the battery, the power component in the control box, the control box shell and external lightning and static electricity, thereby playing an insulation role. An upper end bearing is arranged in a central hole of the support plate, and the control box is connected with an electric control cabinet on a door machine walking trolley through a charging line, and the electric control cabinet charges the battery to perform charging connection.

[0029] 6. The door machine lightning protection device provided by the present application, the bottom of the rotating rod is provided with a hoop, the hoop is rotationally connected with the rotating rod through a bearing, the hoop is connected with the inner wall of the insulating sleeve through a support, and a guide sleeve is arranged on the rotating rod and moves up and down through the movement of the connecting plate and the hoop, so that the hoop plays a fixing role on the rotating rod to realize the up and down movement.

[0030] 7. The door machine lightning protection device provided by the present application further comprises a power component, the power component is connected with the rotating rod, the power component and the rotating rod are connected through a flexible coupling of insulating material, and the power component is supported on the support plate through a support. The power component drives the rotation to rotate, and the coupling plays a connecting role.

[0031] 8. The machine provided by the present application comprises the above-mentioned door machine lightning protection device and further comprises a walking wheel, the walking wheel is suitable for shifting on a track, and the upper surface of part of the track is provided with an insulating pad layer to avoid transmitting lightning to the track through the walking wheel. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0033] Figure 1 It is a structural schematic view of the door machine provided in the embodiments of the present application;

[0034] Figure 2 It is an enlarged structural schematic view of the door machine provided in the embodiments of the present application in A direction;

[0035] Figure 3 It is an enlarged structural schematic view of the door machine provided in the embodiments of the present application in B direction;

[0036] Figure 4The structure diagram of C direction amplification of the door machine provided in the embodiment of the present application;

[0037] Figure 5 The structure diagram of the umbrella net structure in the closed state provided in the embodiment of the present application;

[0038] Figure 6 The connection diagram of the conductive vertical rod and the conductive horizontal ring provided in the embodiment of the present application;

[0039] Figure 7 The structure diagram of the support plate provided in the embodiment of the present application;

[0040] Figure 8 The three-dimensional diagram of the door machine umbrella net in the expanded state provided in the embodiment of the present application;

[0041] Figure 9 The three-dimensional diagram of the door machine umbrella net in the expanded state provided in the embodiment of the present application;

[0042] Figure 10 The three-dimensional diagram of the door machine umbrella net in the closed state provided in the embodiment of the present application.

[0043] BRIEF DESCRIPTION OF DRAWINGS: 1, door machine; 2, rotating rod; 3, guide sleeve; 4, conductive vertical rod; 5, conductive horizontal ring; 6, clamp; 7, flange; 8, control box; 9, battery; 10, power piece; 11, umbrella net structure; 12, connecting plate; 13, insulating sleeve; 14, conductive wire; 15, grounding carbon rod; 16, machine room; 17, insulating layer; 18, walking wheel; 19, insulating cushion layer; 20, track; 21, bearing; 22, horizontal ring connecting ring; 23, vertical rod connecting ball; 24, sliding slot hole; 25, support plate; 26, upper end bearing; 27, charging wire; 28, electric control cabinet; 29, bearing plate; 30, support rod; 31, control cabinet. DETAILED DESCRIPTION

[0044] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as they do not conflict with each other.

[0048] Example 1

[0049] The door machine lightning protection device provided by the present application comprises: a rotating rod structure, the rotating rod structure comprises a rotating rod 2, the rotating rod 2 is arranged in an insulating sleeve 13 on the top of a door machine 1, and the rotating rod 2 is an external thread structure; an umbrella net structure 11 comprising a guide sleeve 3 threadedly connected with the rotating rod 2, the guide sleeve 3 is arranged on the outer periphery of the rotating rod 2, at least three electrically conductive vertical rods 4 are arranged on the upper periphery of the guide sleeve 3, at least two electrically conductive horizontal rings 5 are arranged around the electrically conductive vertical rods 4, the radius of each electrically conductive horizontal ring 5 is different, and the working height of the umbrella net structure 11 is also different when the umbrella net structure 11 is unfolded; an electrically conductive structure comprising an electrically conductive wire 14 and a grounding carbon rod 15, one end of the electrically conductive wire 14 is fixedly connected with the tail end of the rotating rod 2, the other end is connected with the grounding carbon rod 15, in the lightning protection state, the electrically conductive vertical rods 4 extend out of the insulating sleeve 13, the electrically conductive horizontal rings 5 are unfolded in the circumferential direction of the electrically conductive vertical rods 4 to become umbrella-shaped, the electrically conductive horizontal rings 5 and the electrically conductive vertical rods 4 form an umbrella-shaped structure covering above the door machine 1, so as to shield the door machine 1 from lightning and then transmit to the rotating rod 2, and then transmit to the electrically conductive wire 14, and the electrically conductive wire 14 transmits to the ground through the track 20 through the grounding carbon rod 15.

[0050] When thunderstorms occur, the conductive pole 4 extends out of the insulating sleeve 13, and the conductive horizontal ring 5 expands the conductive pole 4 outward in the circumferential direction to form an umbrella-shaped structure covering the gantry crane 1. This allows lightning strikes above and near the gantry crane 1 to reach the umbrella-shaped structure, and then be transmitted to the ground through the conductive wire 14 and the grounding carbon rod 15 via the track 20. This solves the problem that the lightning rod cannot cover the gantry crane 1. Because the lightning protection device is insulated from the structure of the gantry crane 1, lightning strikes will not affect the gantry crane 1, providing good protection for the gantry crane 1.

[0051] Example 2

[0052] like Figure 1 - Figure 10 One specific embodiment of the lightning protection device for the gantry crane shown includes: a rotating rod structure with a rotating rod 2, an umbrella net structure 11 rotatably connected to the rotating rod structure, a conductive structure fixedly connected to one end of the rotating rod structure, and a control structure for controlling the rotation of the rotating rod 2.

[0053] like Figure 1 As shown, this lightning protection device is not only applicable to the gantry crane 1, but also to various equipment and buildings, structures, and devices requiring lightning protection. Accordingly, the lightning protection device, such as the rotating rod structure, can be arranged on the corresponding structure on top of the equipment, building, structure, and device requiring protection. In this embodiment, where it is arranged on the gantry crane 1, the rotating rod structure includes a rotating rod 2 housed within the insulating sleeve 13 of the machine room 16 at the top of the gantry crane 1. To facilitate the rotation of the rotating rod 2 under stable support conditions, such as... Figure 1 As shown, the rotating rod and its supporting structure are fixed at least at two points: the upper part is supported by a connecting plate 12, and the lower part is supported by a clamp 6. The upper support method of the connecting plate 12: A support plate 25 is embedded in the inner ring of the connecting plate 12 to support the control box 8 and the power component 10. Both the support plate 25 and the load-bearing plate 29 are made of insulating material to insulate the control box 8 and the power component 10 from the housing and external lightning and static electricity. The center of the support plate has a hole-like structure, and an upper bearing 26 is installed inside the hole, serving as the upper support for the rotating rod 2 and also facilitating its rotation. The lower support method of the clamp 6: A clamp 6 is provided at the bottom of the insulating sleeve 13. The clamp 6 is rotatably connected to the rotating rod 2 via a bearing 21. The clamp 6 is reliably connected to the inner wall of the insulating sleeve 13 via a bracket, serving as the lower support for the rotating rod 2 and also facilitating its rotation. To facilitate the entry and exit of the umbrella net structure 11, the upper part of the insulating sleeve 13 is tapered, and a connecting plate 12 is provided on the inclined surface of the tapered shape. From the perspective of expanding the scope of application, additional fixing points can be added according to the different structural characteristics of gantry cranes or other engineering equipment, all of which are within the scope of protection of this patent.

[0054] like Figure 1As shown, in order to facilitate the expansion of the conductive horizontal ring 5, the umbrella net structure 11 comprises a guide sleeve 3 connected with the rotating rod 2, the guide sleeve 3 is arranged on the outer periphery of the rotating rod 2, and the guide sleeve 3 is threadedly connected with the rotating rod 2. The guide sleeve 3 can move up and down on the rotating rod 2 through the movement of the rotating rod 2 between the connecting plate 12 and the clamp 6. A plurality of conductive vertical rods 4 are fixedly arranged on the upper periphery of the guide sleeve 3 at equal intervals, each conductive vertical rod 4 has a certain curvature to cover a suitable area after expansion, and a plurality of conductive horizontal rings 5 are movably arranged along the length direction of the conductive vertical rod 4, and the radius of each conductive horizontal ring 5 is different, and the diameter becomes larger as it is farther away from the guide sleeve 3, and the working height is also different when the umbrella net structure 11 is expanded.

[0055] As shown in Figure 6 As shown in

[0056] As shown in

[0057] As shown in Figure 1 As shown in

[0058] The upper part of the insulating sleeve 13 is funnel-shaped, and the inner inclined surface of the funnel is provided with a connecting plate 12, and the outer ring of the connecting plate 12 is provided with a conductive vertical rod sliding groove hole 24 for guiding and supporting the telescopic sliding of the conductive vertical rod. When the rotating rod 2 rotates, the conductive vertical rod 4 can be retracted and extended from the conductive vertical rod sliding groove hole 24 to drive the umbrella net to expand and shrink. The inner ring of the connecting plate 12 is embedded with a support plate 25 for supporting the control box 8 and the power component 10. The support plate 25 and the bearing plate 29 are both made of insulating materials, so that the control cabinet 31, the battery 9 and the power component 10 inside the control box 8 are insulated from the shell of the control box 8 and the external lightning and static electricity. The center of the support plate is a hole structure, and an upper end bearing 26 is arranged in the hole as an upper support of the rotating rod 2 and also plays a role in cooperating with the rotation. In this way, the umbrella net structure 11 is reliably fixed to the door machine 1 through the insulating sleeve 13 and the connecting plate 12, and no metal connection or contact occurs between the insulating sleeve 13 and the door machine 1, thereby ensuring the overall insulation between the umbrella net structure 11 and the door machine 1 body, and further ensuring the reliability of the device.

[0059] As shown in Figure 1 The control structure is arranged on the top of the machine room 16, and the control structure includes a control box 8, and the control box 8 is internally provided with a control cabinet 31, a battery 9 and a power component 10 for controlling the rotation of the rotating rod 2 and providing power for the rotation. The bearing plates 29 of the control cabinet 31 and the battery 9 are made of insulating materials. The control box 8 is connected to the electric control cabinet 28 on the door machine running trolley through a charging line 27, and the battery 9 is charged by the electric control cabinet 28. The control structure further includes a power component 10 connected to the rotating rod 2, and the power component 10 and the rotating rod 2 are connected through an insulating sleeve flexible coupling. Specifically, the power component 10 is various types of motors. The power component 10 is supported on the middle insulating support plate 25 through a support such as a flange plate 7. The wireless control mode is preferred to avoid lightning caused by cables in the wired mode, which may cause electrical damage.

[0060] It should be noted that the shell of the control structure is a protective cover made of metal conductive material to play the role of rainproof and dustproof. The bearing plates 29 and the insulating support plates 25 of the devices such as the control cabinet 31, the battery 9 and the power component 10 in the control structure are made of insulating plastic, insulating rubber, wood and other materials. When the shell of the control structure is struck by lightning or static electricity, the internal devices are ensured to be not damaged by lightning or static electricity and to operate stably due to the insulating effect of the support plate.

[0061] A machine includes the door machine lightning protection device described above, as shown in Figure 1As shown in Figure 5, the system also includes traveling wheels 18 located below the gantry crane 1. These traveling wheels 18 are adapted to move the gantry crane 1 and the umbrella net structure 11 along the track 20. An insulating pad 19 is provided at a suitable area at the end of the track 20. This allows the gantry crane 1 to travel along the traveling wheels 18 to the area with the insulating pad 19, thereby blocking the lightning conductor channel connecting the gantry crane 1, the traveling wheels 18, the track 20, and the ground, preventing lightning from damaging other electrical equipment through the lightning conductor channel. This complements the umbrella net structure 11, further enhancing the lightning protection effect.

[0062] In the specific implementation process, the specific usage method is as follows:

[0063] (1) Adjustment before use of the device. In non-thunderstorm weather, preparations for lightning protection during thunderstorms should be made. The charging cable 27 should be connected to the electrical control cabinet 28 on the gantry crane traveling trolley, and the electrical control cabinet 28 should charge the battery 9. After charging is completed, the charging cable 27 should be disconnected from the electrical control cabinet 28. This is to prevent lightning from conducting through the charging cable 27 during thunderstorms and damaging the electrical components inside the control box 8.

[0064] (2) Gantry crane relocation for lightning protection. When thunderstorms are imminent, the gantry crane first travels to the end of track 20 where an insulating pad 19 is installed and stops. The traveling wheels 18 are insulated from the metal track 20 by the insulating pad 19, achieving a preliminary insulation and lightning protection effect. The installation of the insulating pad is to block the lightning conduction channel connecting the gantry crane structure, traveling wheels, track 20, and grounding grid, preventing lightning from passing through the lightning conduction channel and damaging the electrical equipment of the gantry crane 1 if no lightning conduction device is installed on the equipment itself. As mentioned above, the insulating layer 17 is not laid on the entire end of the track; it is only laid on the section where the traveling wheels contact the track. The section of the track in contact with the grounding carbon rod is not covered with an insulating pad to achieve the above-mentioned lightning protection effect.

[0065] (3) Umbrella net deployment for lightning protection. The control box 8 of the lightning protection system, controlled by the gantry crane or via remote wireless control, sends an action command to the power unit 10, causing the rotating rod 2 to rotate. The guide sleeve 3 drives the conductive upright 4 upwards, extending from the conductive upright sliding groove hole 24 on the connecting plate 12. As the conductive upright 4 extends, it contacts the horizontal ring connecting ring 22 via the upright connecting ball 23 on the conductive upright 4, causing the conductive horizontal ring 5 to also move upwards and unfold layer by layer. When all the conductive upright 4 is extended, each layer of conductive horizontal ring 5 is in place, unfolding into an umbrella shape along the circumferential direction of the conductive upright 4, thus forming a regular polygonal umbrella shape covering the equipment requiring lightning protection, achieving further lightning protection. When lightning reaches the vicinity of the gantry crane 1, the lightning is received by the umbrella structure and then transmitted from the umbrella structure to the rotating rod 2, and from the rotating rod 2 to the conductive wire 14. The conductive wire 14 is transmitted to the ground via the grounding carbon rod 15 and the track 20.

[0066] (4) After the thunderstorm, the device resumes operation. In order to avoid the shaking or damage of the lightning protection device during the operation of the door machine or the device, the lightning protection umbrella net needs to be retracted after the thunderstorm. The umbrella net retraction is the reverse operation of the umbrella net expansion described above. The controller receives the door machine 1 or remote action instruction action, and the power member 10 drives the conductive vertical rod 4 to rotate, drives the guide sleeve 3 to move downward, so as to recover the umbrella structure into the insulating sleeve 13. The conductive horizontal ring 5 is automatically stacked on the connecting plate 12 after being retracted, and the door machine can also freely walk on the track 20 to perform free work.

[0067] The lightning protection measures for the control system body and the operator of the patent are as follows: 1. The top control box 8 and the power member 10 of the patent device are externally provided with a protective cover made of a whole metal conductive material, which plays a role in preventing rain, moisture, dust, etc. Inside, the devices such as the electric control cabinet 28, the battery 9, and the power member 10 are made into support plates 25 and bearing plates 29 made of insulating materials such as insulating plastic, insulating rubber, and wood. On the one hand, they can reliably fix the internal devices, and on the other hand, they can be reliably connected with the guide sleeve 3 to ensure the stable operation of the internal mechanism. The power member 10 is not directly connected with the rotating rod 2 by a metal coupling, but is connected by a flexible coupling made of insulating materials such as nylon, plastic, and rubber for insulation. In this way, the control and power system of the patent device can be physically isolated from the part that may be struck by lightning. 2. The control box 8, the electric control cabinet 28, and the control cabinet 31 of the top control system of the patent are internally provided with surge protectors to further reduce the surge impact and protect the safety of the internal electrical devices when the insulating materials outside are disabled. 3. The opening and closing operation of the patent device is operated by remote control to ensure the safety of the operator. The signal receiving and control device is arranged in the control cabinet to ensure the normal realization of the function.

[0068] As an alternative embodiment, the umbrella shape can also be circular or other shapes.

[0069] As an alternative embodiment, the curvature between adjacent conductive vertical rods 4 is different.

[0070] The application has the following advantages: (1) The patent is simple, feasible, easy to implement, economical, does not affect the normal operation of the device, has strong universality, and is suitable for promotion; (2) The patent adopts multi-level lightning protection, has high reliability, and plays a good lightning protection effect, ensuring the safety of the device.

[0071] The door machine lightning protection device provided in the application solves the following difficulties: (1) in order to avoid vibration damage in the daily operation process of the equipment, the lightning protection device must adopt a telescopic mode, which realizes protection in non-thunderstorm weather and lightning protection in thunderstorm weather; (2) the lightning protection device must be insulated from the whole door machine to avoid damage to the door machine; (3) the control system of the lightning protection device adopts a reliable internal lightning protection design to ensure the reliability of the lightning protection device control and action.

[0072] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A lightning protection device for a gantry, characterized in that, The utility model relates to a lightning protection device for door machine, including: Rotary rod structure, the rotary rod structure includes rotary rod (2), the rotary rod (2) is suitable for being located in the insulating sleeve (13) top of door machine (1); Umbrella net structure (11), including the guide sleeve (3) of rotary sleeve joint with rotary rod (2), the guide sleeve (3) is located the outer periphery of rotary rod (2), the upper periphery of guide sleeve (3) is equipped with at least three interval arrangement's electrically conductive vertical pole (4), electrically conductive vertical pole (4) has the camber, is equipped with at least two interval arrangement's electrically conductive horizontal ring (5) around electrically conductive vertical pole (4);Each electrically conductive horizontal ring (5) is different, so that the height of the layer when the umbrella net structure (11) is unfolded is also different; Electrically conductive structure, including the electrically conductive wire (14) and ground carbon rod (15), one end of electrically conductive wire (14) is fixedly connected with the tail end of rotary rod (2), the other end is connected with ground carbon rod (15), in the lightning protection state, electrically conductive vertical pole (4) stretches out the outside of insulating sleeve (13), electrically conductive horizontal ring (5) is unfolded into umbrella shape along the circumferential direction of electrically conductive vertical pole (4), electrically conductive horizontal ring (5) and electrically conductive vertical pole (4) form umbrella shape structure covering the above of door machine (1), to shield the lightning of door machine (1) and pass to rotary rod (2) again, pass to electrically conductive wire (14) by rotary rod (2) again, electrically conductive wire (14) passes through the track (20) and passes to the ground through ground carbon rod (15); The upper portion of the insulating sleeve (13) is funnel-shaped, the inner inclined surface of the funnel is provided with a connecting plate (12), the outer ring of the connecting plate (12) is provided with an electrically conductive vertical rod sliding slot (24) for guiding and supporting the telescopic sliding of the electrically conductive vertical rod (4), when the rotary rod (2) rotates, the electrically conductive vertical rod (4) enters and exits from the sliding slot (24) to drive the umbrella net to unfold and contract; the inner ring of the connecting plate (12) is provided with a support plate (25), the support plate (25) supports the control box (8) and the power component (10), the support plate (25) and the bearing plate (29) are both made of insulating material to be insulated from the control cabinet (31), the storage battery (9), the power component (10) in the control box (8), the shell of the control box (8) and external lightning and static electricity; the central hole of the support plate (25) is provided with an upper end bearing (26), the control box (8) is connected with the electric control cabinet (28) on the door machine walking trolley through a charging wire (27), and the storage battery (9) is charged by the electric control cabinet (28).

2. The lightning protection device for a door machine according to claim 1, characterized by The electrically conductive vertical rod (4) is provided with a vertical rod connecting ball (23), the electrically conductive horizontal ring (5) is connected with a horizontal ring connecting ring (22), and the horizontal ring connecting ring (22) is sleeved on the electrically conductive vertical rod (4).

3. The lightning protection device for a door machine according to claim 2, characterized by The diameters of the vertical rod connecting balls (23) on different electrically conductive vertical rods (4) increase from the outside to the guide sleeve direction, the diameters of the horizontal ring connecting rings (22) connected on the electrically conductive horizontal rings (5) increase from the outside to the guide sleeve direction, the diameter of the horizontal ring connecting ring (22) matched with the same layer is smaller than the diameter of the vertical rod connecting ball (23), and in the lightning protection state, the electrically conductive horizontal rings (5) of different layers are hung at different heights of the electrically conductive vertical rods (4).

4. The lightning protection device for a door machine according to claim 3, characterized by The insulating sleeve (13) is embeddedly installed in the door machine (1) and is provided with an insulating layer (17) outside.

5. The lightning protection device for a door machine according to claim 4, characterized by The bottom of the rotating rod (2) is provided with a hoop (6) which is rotatably connected with the rotating rod (2) through a bearing (21), and the hoop (6) is connected with the inner wall of the insulating sleeve (13) through a support, the guide sleeve (3) is arranged on the rotating rod (2) and moves up and down between the connecting plate (12) and the hoop (6) through the movement of the rotating rod (2).

6. The lightning protection device for a door machine according to claim 5, characterized by The power member (10) is connected with the rotating rod (2) through a flexible coupling of insulating material, and the power member (10) is supported on the support plate (25) through a support.

7. A machine characterized by, The door machine lightning protection device comprises the door machine lightning protection device according to any one of claims 1-6, and the machine further comprises a walking wheel (18) which is adapted to drive the door machine (1) and the umbrella net structure (11) to move on the track (20), and the upper surface of part of the track (20) is provided with an insulating pad layer (19).

8. A method of using a door machine lightning protection device for use with the door machine lightning protection device of claim 1, the method comprising: The steps include: In the lightning protection state, the conductive vertical rod (4) extends out of the insulating sleeve (13), the conductive horizontal ring (5) expands in the circumferential direction of the conductive vertical rod (4) to become an umbrella shape, the conductive horizontal ring (5) and the conductive vertical rod (4) form an umbrella structure which covers the door machine (1) to shield the lightning from being transmitted to the rotating rod (2) and then to the conductive wire (14) through the conductive wire (14) which is transmitted to the ground through the track (20) via the grounding carbon rod (15); In the non-lightning protection state, the conductive vertical rod (4) is retracted into the insulating sleeve (13), and the conductive horizontal ring (5) is retracted in the circumferential direction of the conductive vertical rod (4) to be entirely collected into the insulating sleeve (13).

9. The method of using a door machine lightning protection apparatus of claim 8, wherein, The steps include: (1) Adjustment before use of the device, in non-thunderstorm weather, preparation for lightning protection in thunderstorm weather is needed, the charging wire (27) is connected with the electric control cabinet (28) on the walking trolley of the door machine (1), the electric control cabinet (28) charges the storage battery (9), after charging is completed, the charging wire (27) is disconnected with the electric control cabinet (28) to avoid damage to the control box (8) by lightning through the charging wire (27) during thunderstorm; (2) Door machine displacement lightning protection, when thunderstorm weather is coming, the door machine is first driven to stop on the track provided with the insulating pad layer (19), the walking wheel (18) is insulated from the metal track (20) through the insulating pad layer (19), and the track (20) contacted by the grounding carbon rod (15) is not provided with the insulating pad layer (19) to introduce lightning into the ground. (3) Umbrella net unfolding lightning, and then through the door machine (1) or remote wireless control box (8), the power component (10) sends action instruction, drives the rotating rod (2) rotation, guide sleeve (3) drive conductive vertical rod (4) upward, with the extension of the conductive vertical rod (4), will be through the vertical rod connecting ball (23) and horizontal ring connecting ring (22) matching contact, drive conductive horizontal ring (5) also upward movement unfolded layer by layer, when the conductive vertical rod (4) is fully extended, each layer of conductive horizontal ring (5) is unfolded to the position, umbrella net structure (11) unfolding dispersed cover above the door machine (1); (4) Equipment recovery operation after thunderstorm, after thunderstorm, according to the reverse operation of the above umbrella net structure (11) unfolding, by the power component (10) receiving door machine (1) or remote action instruction action, drive conductive vertical rod (4) retract, drive conductive horizontal ring (5) retract after automatic stacking on the connecting plate (12), the door machine (1) can freely walk on the track (20), work.

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