Crane projection lamp holder

Abstract

The utility model provides a crane projection lamp holder which comprises a core base, a rotary platform and a support body used for installing a projection lamp, the rotary platform is rotationally installed on the core base, and a first driving assembly for driving the rotary platform to rotate is arranged on the core base; the support body is rotationally installed on the rotary platform, a rotating shaft of the support body is perpendicular to a rotating shaft of the rotary platform, a worm is arranged on the rotary platform, the worm is perpendicular to the rotating shaft of the support body, a turbine is formed at the end, close to the rotary platform, of the support body, and the turbine is meshed with the worm. And a second driving motor for driving the worm to rotate is arranged on the revolving platform. The driving torque can be reduced by adopting worm and gear driving, the locking function is achieved, and after driving, the matching position of the worm and gear cannot be changed due to the gravity effect.

Description

Technical Field

[0001] This application relates to the field of mechanical structure design, and specifically, to a crane floodlight cloud platform. Background Art

[0002] The safe operation of cranes in the metallurgical industry has always been a key concern. Among them, a particularly important link in crane operation safety is the hoisting link of the crane hook. The proportion of accidents occurring during the hoisting process in crane safety accidents is very high. In addition to some equipment reasons, more accidents in the hoisting link are due to insufficient personnel observation. Because the operating environment of the crane is usually poorly lit, especially during night operations, even if there are sufficient under-bridge lighting fixtures, there will still be some dead corners and obstructions causing insufficient light. If the irradiation angle of the under-bridge lighting fixtures can be adjusted in a timely manner to ensure that the lighting center always follows the hoisting center of the crane, and through the coordinated use of multiple lighting fixtures, the illumination at the hoisting center position will be greatly improved, dead corners will be removed, thereby greatly improving the observation fields of operators and signalmen and effectively reducing the accident rate during the hoisting process.

[0003] In addition, under the wave of intelligentization and automation, metallurgical cranes have also been put into intelligent transformation. At present, due to the reason that metallurgical cranes hoist molten metal, full automation transformation cannot be achieved. However, in order to improve the working environment of operators, metallurgical cranes have also started remote operation transformation. Remote operation requires more attention to the safe operation of cranes. All kinds of protection measures need to be automatically implemented by the equipment. The safety during the hoisting process is of utmost importance. A camera and a hook recognition system are required to ensure the safety of the hoisting process. More sufficient light can better ensure that the recognition rate and reliability of the safety system are continuously maintained at a relatively high level.

[0004] The key point of the above description is that the floodlight of the crane can be tracked and adjusted, and to achieve this technology, a cloud platform that can adjust the floodlight angle according to the instructions of the host computer is required.

[0005] Currently, only stage spotlights and stage floodlights have adjustable cloud platforms, but their application scenarios can only be fixed and stable occasions, and the design of their lamps also serves the stage effect and cannot be used on cranes where the operating environment is usually very harsh. Moreover, the severe vibration during the operation of the crane will also cause it to be unusable.

[0006] Therefore, developing a crane floodlight cloud platform to realize the angle adjustment of the crane floodlight and providing equipment support for the light tracking during the crane hoisting process will effectively enhance the illumination intensity at the hoisting center position of the crane, achieve dead-corner-free lighting, and effectively reduce the accident rate during the crane hoisting process. Summary of the Invention

[0007] Aiming at the defects in the prior art, the purpose of this application is to provide a crane floodlight cloud platform.

[0008] A crane floodlight cloud platform provided according to this application includes: a core base, a slewing platform, and a bracket body for installing a floodlight. The slewing platform is rotatably installed on the core base, and a first driving component for driving the slewing platform to rotate is provided on the core base.

[0009] The bracket body is rotatably installed on the slewing platform. The rotation axis of the bracket body is perpendicular to the rotation axis of the slewing platform. A worm is provided on the slewing platform, and the worm is perpendicular to the rotation axis of the bracket body. A turbine is formed at one end of the bracket body close to the slewing platform, and the turbine meshes with the worm. And a second driving motor for driving the worm to rotate is provided on the slewing platform.

[0010] Preferably, the first driving component includes a slewing driving motor, a driving gear, and a slewing platform gear. The slewing driving motor is fixedly installed on the core base, and the output shaft of the slewing driving motor is connected to the driving gear.

[0011] The slewing platform gear is coaxially and fixedly connected to the slewing platform, and the driving gear meshes with the slewing platform gear.

[0012] Preferably, a worm bracket is provided on the slewing platform, and the worm is rotatably installed on the worm bracket.

[0013] Preferably, a bracket rotating arm is provided between the bracket plane and the worm gear. The bracket rotating arm drives the bracket plane to rotate under the drive of the worm gear.

[0014] The bracket body includes a turbine, a bracket rotating arm, and a bracket plane which are arranged in sequence from the side close to the slewing platform to the side far from the slewing platform. The bracket plane is used for installing a floodlight.

[0015] Preferably, a bracket mounting base is further provided on the slewing platform. A bracket rotating shaft is provided on the bracket mounting base. The center of the worm gear is provided with a hole, and the bracket mounting base is provided with a shaft hole. The bracket rotating shaft passes through the center hole of the worm gear and the through hole of the bracket mounting base at the same time.

[0016] Preferably, the bracket rotating arms are of two parallel structures. The worm gear and the bracket rotating arms are integrally formed. One end of the bracket rotating arm is fixedly connected to the bracket plane, and the other end is processed into a worm gear shape to cooperate with the worm.

[0017] Preferably, a protective cover is provided on the core base. The protective cover includes a top protective cover and a bottom protective cover, and a wiring port is provided on the protective cover.

[0018] Preferably, the support rotating arms are two parallel structures, the worm gear is integrally formed with the support rotating arms, one end of the support rotating arm is fixedly connected to the support plane, and the other end is processed into a worm gear shape to cooperate with the worm.

[0019] Preferably, circuit board mounting posts are provided on the slewing platform.

[0020] Preferably, a central main shaft is fixedly connected to the middle of the slewing platform, a main shaft mounting hole is provided at the center of the core base, and the central main shaft is rotatably mounted in the main shaft mounting hole.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] 1. By adopting worm and worm gear drive, the driving torque can be reduced in the present application, and it has a locking function. After driving, the mating position of the worm and worm gear will not change due to the action of gravity.

[0023] 2. By adopting double worm and worm gear drive, the driving torque is further increased in the present application. The arc-shaped tooth surface further increases the contact area between the worm teeth and the worm, improving the torque-bearing capacity of the worm and worm gear, and ensuring that the tooth surface will not break even under the severe vibration of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more apparent:

[0025] Figure 1 It is a schematic cross-sectional structure diagram mainly showing the core components of the crane spotlight cloud platform in the present application;

[0026] Figure 2 It is a schematic front view structure diagram mainly showing the crane spotlight cloud platform in the present application;

[0027] Figure 3 It is a schematic front view of the lying position mainly showing the crane spotlight cloud platform in the present application;

[0028] Figure 4 It is a schematic structure diagram mainly showing the worm and worm gear transmission mechanism of the crane spotlight cloud platform in the present application;

[0029] Figure 5 It is a schematic structure diagram mainly showing the installation of the central main shaft of the crane spotlight cloud platform in the present application;

[0030] Figure 6 It is a schematic top view mainly showing the drive motor of the crane spotlight cloud platform in the present application;

[0031] Figure 7 It is a schematic top view mainly showing the crane spotlight cloud platform after the circuit board is assembled in the present application;

[0032] Figure 8 This is a schematic diagram of the transmission mechanism of the rotary platform of the crane floodlight cloud platform mainly embodied in this application;

[0033] Figure 9 This is a schematic diagram of the top protective cover of the crane floodlight cloud platform mainly embodied in this application.

[0034] As shown in the figure: 1. Rotary platform; 2. Bracket drive motor; 3. Worm; 4. Rotary platform drive motor; 5. Coupling; 6. Worm gear; 7. Bracket rotating arm; 8. Bracket plane; 9. Bracket body; 10. Bracket rotating shaft; 11. Rotary platform gear; 12. Rotary platform drive gear; 13. Worm bracket; 14. Central main shaft; 15. First protective cover; 16. Second protective cover. Detailed implementation mode

[0035] The following will describe this application in detail with specific embodiments. The following embodiments will help those skilled in the art to further understand this application, but do not limit this application in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several changes and improvements can still be made. These all belong to the protection scope of this application.

[0036] According to the crane floodlight cloud platform provided by this application, it includes: a core base, a rotary platform 1, and a bracket body 9 for installing the floodlight. The rotary platform 1 is rotatably installed on the core base, and a rotary platform drive assembly for driving the rotary platform 1 to rotate is provided on the core base;

[0037] The bracket body 9 is rotatably installed on the rotary platform 1. The rotating shaft of the bracket body 9 is perpendicular to the rotating shaft of the rotary platform 1. A worm 3 is provided on the rotary platform 1, and the worm 3 is perpendicular to the rotating shaft of the bracket body 9. A worm gear 6 is formed at one end of the bracket body 9 close to the rotary platform 1. The worm gear 6 meshes with the worm 3, and a bracket drive motor 2 for driving the worm 3 to rotate is provided on the rotary platform 1.

[0038] The rotary platform drive assembly includes a rotary platform drive motor 4, a rotary platform drive gear 12, and a rotary platform gear 11. The rotary platform drive motor 4 is fixedly installed on the core base, and the output shaft of the rotary platform drive motor 4 is connected to the rotary platform drive gear 12;

[0039] The slewing platform gear 11 is fixedly connected to the slewing platform 1 coaxially, and the slewing platform driving gear 12 meshes with the slewing platform gear 11. A worm support 13 is arranged on the slewing platform 1, and the worm 3 is rotatably installed on the worm support 13. A support rotating arm 7 is arranged between the support plane 8 and the worm gear 6. The support rotating arm 7 drives the support plane 8 to rotate under the drive of the worm gear 6; the support body 9 includes a worm gear 6, a support rotating arm 7, and a support plane 8 arranged in sequence from near the slewing platform 1 to far from the slewing platform 1. The support plane 8 is used for installing a floodlight.

[0040] A support mounting base is further arranged on the slewing platform 1. A support rotating shaft 10 is arranged on the support mounting base. The center of the worm gear 6 is provided with a hole, the support mounting base is provided with a shaft hole, and the support rotating shaft 10 passes through the center hole of the worm gear 6 and the through hole of the support mounting base at the same time.

[0041] The support rotating arm 7 is of two parallel structures. The worm gear 6 and the support rotating arm 7 are integrally formed. One end of the support rotating arm 7 is fixedly connected to the support plane 8, and the other end is processed into the shape of the worm gear 6 to cooperate with the worm 3.

[0042] A protective cover is arranged on the core base. The protective cover includes a top protective cover and a bottom protective cover. A wiring port is opened on the protective cover. At least one floodlight mounting hole is arranged below the support plane 8. Circuit board mounting posts are arranged on the slewing platform 1. A central main shaft 14 is fixedly connected to the middle of the slewing platform 1. A main shaft mounting hole is arranged at the center of the core base, and the central main shaft 14 is rotatably installed in the main shaft mounting hole.

[0043] More specifically, the present application will realize the adjustment of the vertical angle and the horizontal angle of the floodlight of the crane in two dimensions.

[0044] The present application will realize a support that can rotate at a certain angle in the vertical plane. The floodlight of the crane is firmly installed on the support. Therefore, realizing the adjustment of the vertical angle of the support can drive the adjustment of the vertical angle of the floodlight.

[0045] The present application will realize a slewing platform 1 that can rotate in the horizontal plane. The slewing platform 1 can slew within a range of 200 degrees in the horizontal plane, thereby driving the support to slew. Therefore, the adjustment of the angle of the floodlight in the horizontal plane is realized.

[0046] Due to the usage scenarios, crane floodlights are usually heavy. They come with a mounting bracket that can be manually adjusted in angle. After adjusting the mounting bracket of the floodlight to a state perpendicular to the lampshade panel, it is fastened to the bracket plane 8 of this application, so as to achieve the rotation of the floodlight driven by the rotation of the bracket of this application. The bracket of this application and the mounting bracket of the floodlight itself will form a lever structure, with the rotation center as the fulcrum, and the rotation center is close to the end of the bracket. Therefore, a large torque is required to drive the rotation of the bracket of this application. In order to maintain the angle of the bracket, a locking function needs to be achieved. Otherwise, the self-weight of the floodlight will cause the adjusted angle to not be maintained.

[0047] In this application, the two rotating arms of the bracket are processed from 5-mm-thick steel plates. Their ends are all processed into worm gear 6 structures, and the tooth surfaces are processed into concave arc tooth structures. The driving method uses a double worm 3 drive. Using the worm gear 6 and worm 3 drive can, firstly, reduce the driving torque, and secondly, have a locking function. After driving, the mating position of the worm gear 6 and worm 3 will not change due to the gravity effect. The double worm gear 6 and worm 3 drive further increases the driving torque. The arc tooth surface further enlarges the contact area between the worm gear and the worm 3, enhancing the torque-bearing capacity of the worm gear 6 and worm 3, and ensuring that the tooth surface will not break even under severe vibrations of the crane. Thus, both the driving torque and the locking function meet the functional requirements for the rotation of the bracket of this application.

[0048] In this application, the overall driving structure of the bracket is installed on a slewing platform 1. The slewing platform 1 can rotate on the horizontal plane through a reduction gear transmission structure, thereby driving the bracket driving structure to rotate on the horizontal plane, so as to achieve the horizontal rotation of the floodlight. Since in actual applications, only a horizontal rotation angle of the light greater than or equal to 180 degrees is required to meet the tracking requirements during the lifting process, therefore, this application limits the horizontal rotation angle within a range of 200 degrees. This can not only meet the requirements of the actual working conditions, but also avoid interference with the internal structure and wiring due to excessive rotation angles.

[0049] The driving power source for all mechanisms in this application is provided by a stepper motor. Using a stepper motor drive can achieve precise angle adjustment. The stepper motor drive is realized through a drive circuit board, and the control of the drive motor is realized through a control circuit board. Moreover, the control circuit board has a network communication function and can control the whole of this application through the network.

[0050] Through a reasonably designed driving structure, this application can drive the floodlight to perform electric angle adjustment remotely via the network in the vertical and horizontal dimensions, thus solving the problem that current crane floodlights do not have an electric pan-tilt head and cannot perform electric light adjustment, and providing equipment support for realizing an all-round lighting tracking system throughout the crane lifting process.

[0051] The following provides a specific implementation manner for this application.

[0052] This application is divided into two parts as a whole. One part is the internal core structure, and the other part is the external protective cover structure. The entire internal core structure of this application is wrapped by a top protective cover and a bottom protective cover on the outside (as Figure 5 , Figure 7 shown).

[0053] As Figure 1 , Figure 2 , Figure 3 shown, it shows a schematic diagram of the internal core structure of this application. The core structure includes a bracket, a slewing platform 1, a worm 3, a worm 3 coupling 5, a bracket drive motor 2, a bracket rotating shaft 10, a slewing platform drive motor 4, a slewing platform gear 11, a slewing platform drive gear 12, and a central main shaft. Among them, the number of the worm 3, the worm 3 coupling 5, the bracket drive motor 2, and the bracket rotating shaft 10 is two.

[0054] The slewing platform 1 is in the shape of a round cake as a whole, and is processed with a mounting seat for the bracket drive motor 2, a bracket for the worm 3, a mounting post for the bottom protective cover, and a bracket mounting base. The slewing platform 1 is made of 3-mm steel plate to ensure that its rigidity meets the application requirements and will not deform due to excessive load.

[0055] The bracket drive motor 2 is horizontally installed on the slewing platform 1 through the mounting seat of the bracket drive motor 2. In order to reduce the height of the entire core structure to make it more compact, and at the same time to reduce the height of the bracket mounting base and improve its strength, the bracket drive motor 2 is installed on the slewing platform 1 in an embedded manner through the slewing platform 1, and at the same time this installation method can also expose the wiring terminals of the bracket drive motor 2 above the slewing platform 1 to simplify the wiring layout.

[0056] The worm 3 is connected to the output shaft of the bracket drive motor 2 through the worm 3 coupling 5 and is fixed through the worm 3 bracket on the slewing platform 1 to ensure that the worm 3 coupling 5 and the output shaft of the bracket drive motor 2 do not bear longitudinal torque during the transmission process of the worm 3, and to ensure that the worm 3 will not deform and disengage from the worm wheel during the entire transmission process, resulting in the failure of the transmission chain.

[0057] The bracket is in the shape of a π structure as a whole, including a bracket plane 8, a bracket rotating arm 7, and a bracket worm wheel 6. The upper plane of the bracket plane 8 is welded to the two bracket rotating arms 7, and several spotlight mounting holes are processed on the lower plane of the bracket plane 8 for installing spotlights, as Figure 2 shown.

[0058] The bracket rotating arm 7 is installed on the bracket mounting base on the slewing platform 1 through the bracket rotating shaft 10, which can ensure that the bracket can rotate along the bracket rotating shaft 10 in a reference plane perpendicular to the lower plane of the slewing platform 1.

[0059] The end of the bracket rotating arm 7 is machined into the structure of a worm gear 6, and a central hole is machined in the center of the worm gear 6. Correspondingly, a shaft hole is machined in the bracket mounting base of the slewing platform 1, and a bushing is machined on the inner side along the shaft hole for mounting the bracket rotating shaft 10. The bracket rotating shaft 10 passes through the central hole of the worm gear 6 and the shaft hole of the bracket mounting base to mount the bracket on the slewing platform 1. One end of the bracket rotating shaft 10 is machined with a boss, and the other end is machined with a groove. The diameter of the boss is larger than the shaft diameter (such as Figure 3 shown in the sectional view C-C). After the bracket rotating shaft 10 is installed, a bracket circlip is inserted into its groove to fix it and prevent it from falling off, while ensuring that the bracket rotating arm 7 can rotate flexibly along the bracket rotating shaft 10.

[0060] The bracket worm gear 6 and the worm 3 cooperate to form a worm gear 6 worm 3 transmission structure.

[0061] Thus, the rotation of the output shaft of the bracket drive motor 2 will drive the rotation of the worm 3 coupling 5, and then drive the rotation of the worm 3, and then drive the rotation of the bracket worm gear 6, and then drive the rotation of the bracket rotating arm 7, and then can drive the floodlight installed on the lower plane of the bracket to rotate, so as to realize the adjustment of the vertical angle of the floodlight.

[0062] The two bracket drive motors 2 and the worm gear 6 worm 3 transmission structure can provide sufficient driving torque for the rotation of the bracket, and the worm gear 6 worm 3 transmission structure can also form a self-locking structure to ensure that after the bracket drive motor 2 stops power output, the bracket rotating arm 7 can still maintain its original angle and will not slide down. This is very important. If self-locking cannot be achieved, the bracket rotating arm 7 will slide down due to the gravity generated by the excessive mass of the floodlight and the vibration during the operation of the crane. If a gear transmission structure is used, an additional braking or locking structure is required, increasing the cost and complexity. To ensure the locking torque of the worm gear 6 worm 3, as Figure 8 shown, the tooth surface of the worm gear 6 is machined into a concave arc shape, so that its contact surface with the worm 3 is larger, thus ensuring that a larger transmission torque and locking torque can be provided.

[0063] The slewing platform gear 11 is installed at the center position of the upper plane of the slewing platform 1 and is fixed through the installation holes of the slewing platform gear 11 to ensure that the slewing platform gear 11 is tightly connected to the slewing platform 1.

[0064] The central main shaft passes through from the center position of the lower plane of the slewing platform 1 to the upper plane of the slewing platform 1, and the central main shaft is also tightly connected to the slewing platform 1 by welding or riveting.

[0065] The bottom of the slewing main shaft is machined with a boss, the diameter of the boss is larger than the diameter of the main shaft, and two grooves are machined near the top for inlaying the main shaft circlips, namely the main shaft circlip 1 and the main shaft circlip 2, for connecting with the core base of the present application.

[0066] The slewing platform drive motor 4 is installed on the upper plane of the core base. Its output shaft penetrates through the core base and extends to the lower plane of the core base. The end of its output shaft is connected to the slewing platform drive gear 12. The slewing platform drive gear 12 is tightly connected to the output shaft of the slewing platform drive motor 4, and the slewing platform drive gear 12 meshes with the slewing platform gear 11.

[0067] Therefore, the rotation of the slewing platform drive gear 12 can drive the rotation of the slewing platform gear 11. Furthermore, the slewing platform gear 11 drives the slewing platform 1 to rotate horizontally, and then drives the support to rotate horizontally, thereby realizing the adjustment of the horizontal angle of the floodlight.

[0068] The bottom protective cover is of a thin-walled circular groove structure. Two long strip support movable grooves are opened on the bottom plane of the bottom protective cover corresponding to the rotation position of the support rotating arm 7. For the convenience of installation, the bottom protective cover is evenly divided into two parts from the central position, and the dividing line is perpendicular to the support movable groove, as Figure 9 shown. During installation, the two semi-circular protective covers are assembled and installed on the bottom protective cover mounting posts of the slewing platform 1. The outer diameter of the bottom protective cover is the same as the diameter of the disc of the slewing platform 1. After installation, the bottom protective cover rotates synchronously with the slewing platform 1. The bottom protective cover completely surrounds the devices and equipment in the lower half of the slewing platform 1. By adding sealing measures such as rubber gaskets, it can play a role in dust prevention and waterproofing. After the bottom protective cover is matched with the slewing platform 1, it is as Figure 4 shown.

[0069] The core base of this application is the main load-bearing component, which is a double-sided disc structure. Both the upper and lower surfaces are in the form of discs. The outer diameter of the upper disc is smaller, and the upper disc will be surrounded after the top protective cover is installed. The inner diameter of the lower disc is slightly larger than the outer diameter of the bottom protective cover, and the bottom protective cover can be surrounded after being matched.

[0070] As Figure 5 shown, a center spindle mounting hole is machined in the center of the core base. A bushing needs to be machined around this hole for heightening and strengthening to ensure that it can bear the weights of the slewing platform 1, the bottom protective cover, the support, and the floodlight, and to ensure the smooth and stable operation of the slewing platform 1 during rotation. The core base disc is required to have sufficient thickness and rigidity, and it can be machined with a 3-mm steel plate. The height of the center bushing is 5 mm to ensure that it will not be deformed due to excessive load.

[0071] The core base is machined with a wire passing hole, and the control circuit of the support drive plate installed on the upper part of the core base can be connected to the support drive motor 2 installed on the slewing platform 1 through the wire passing hole, thereby realizing the control of the support drive motor 2. Since the support drive motor 2 will rotate with the slewing platform 1, the wire will be stretched. Therefore, the length and layout of the wire need to be reasonably arranged to ensure that the wire will not be pulled and damaged during the entire rotation stroke.

[0072] The slewing drive motor itself is installed on the upper part of the core base, and the circuit can be directly connected to the slewing drive board to achieve the control of the slewing drive motor. The slewing drive motor will not generate displacement, so there is no stretching of the circuit.

[0073] On the upper plane of the core base, several circuit board mounting posts, mounting holes for the slewing platform drive motor 4, and shaft output holes are also machined.

[0074] The drive motors in this application are all 57 stepper motors. The use of stepper motors is mainly due to their low cost, precise positioning, high driving torque, and abundant corresponding drive data and chips.

[0075] As Figure 6 shown, it is a schematic diagram of the circuit board installation of this application. The circuit board of this application includes a bracket drive board, a slewing drive board, a power board, and a main control board. The core of the bracket drive board consists of two TB6560AHQ stepper motor drive chips. The slewing drive board consists of one TB6560AHQ stepper motor drive chip. The main control board is mainly composed of a CPU chip (GD32F407VGH6), a PHY chip (DP83822I), a network transformer, an RJ45 interface, and a stepper motor logic drive circuit. The main control board mainly uses the Ethernet to connect to the upper computer device through the CPU for data interaction, and then transmits the instructions of the upper computer device to the two drive boards through the stepper motor logic drive circuit to implement the stepper motor drive function.

[0076] The power board is realized by using a modular finished circuit board, and its function is mainly responsible for converting the external input 220VAC power supply into the DC power supply required by the two drive boards and the main control board. The power supply requirement for each stepper motor drive is 24VDC, 3A, with a total of 360W, while the power supply requirement for the main control board is 5VDC, 5W. Therefore, the power supply selection needs to fully meet the requirements of this application.

[0077] As Figure 7 shown, it is a schematic diagram after the overall matching of the top protective cover and the mounting base of this application. The top protective cover of this application is a thin-walled disc structure, and the inner diameter of its disc is slightly larger than the outer diameter of the upper disc of the core base. After the top protective cover is installed on the core base, the top protective cover will surround the upper disc of the core base. With sealing measures such as sealing gaskets, the top equipment can be comprehensively protected to ensure its dustproof and waterproof properties. The top protective cover is machined with mounting holes to cooperate with the top protective cover mounting posts of the core base, and the top protective cover can be firmly installed on the core base.

[0078] The top protective cover is provided with two stuffing boxes, namely the control cable stuffing box and the power cable stuffing box. They are used to arrange the control cable (Ethernet cable) and the power cable (2X1.5mm2 cable) of this application.

[0079] Two oppositely arranged mounting holes can be selected from the mounting holes of the top protective cover as the mounting holes of the mounting base of the present application for mounting the bottom. The mounting base of the present application is processed from a strip of flat steel with a thickness of 2 mm, and several mounting holes are processed thereon for the overall fixed mounting of the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0080] The specific embodiments of the present application have been described above. It should be understood that the present application is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present application. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. A crane floodlight pan-tilt head, characterized in that, Comprising: A core base, a slewing platform (1), and a bracket body (9) for installing a floodlight. The slewing platform (1) is rotatably installed on the core base, and a slewing platform drive assembly for driving the slewing platform (1) to rotate is provided on the core base. The bracket body (9) is rotatably installed on the slewing platform (1). The rotation axis of the bracket body (9) is perpendicular to the rotation axis of the slewing platform (1). A worm (3) is provided on the slewing platform (1), and the worm (3) is perpendicular to the rotation axis of the bracket body (9). A worm gear (6) is formed at one end of the bracket body (9) close to the slewing platform (1). The worm gear (6) meshes with the worm (3), and a bracket drive motor (2) for driving the worm (3) to rotate is provided on the slewing platform (1).

2. The crane floodlight pan-tilt according to claim 1, characterized in that, The slewing platform drive assembly includes a slewing platform drive motor (4), a slewing platform drive gear (12), and a slewing platform gear (11). The slewing platform drive motor (4) is fixedly installed on the core base, and the output shaft of the slewing platform drive motor (4) is connected to the slewing platform drive gear (12). The slewing platform gear (11) is coaxially and fixedly connected to the slewing platform (1), and the slewing platform drive gear (12) meshes with the slewing platform gear (11).

3. The crane spotlight pan-tilt according to claim 2, characterized in that A worm bracket (13) is provided on the slewing platform (1), and the worm (3) is rotatably installed on the worm bracket (13).

4. The crane spotlight pan-tilt according to claim 1, characterized in that, The bracket body (9) includes a worm gear (6), a bracket rotating arm (7), and a bracket plane (8) arranged in sequence from close to the slewing platform (1) to far from the slewing platform (1). The bracket plane (8) is used for installing a floodlight.

5. The crane floodlight pan-tilt according to claim 4, characterized in that, A bracket mounting base is further provided on the slewing platform (1). A bracket rotating shaft (10) is provided on the bracket mounting base. The center of the worm gear (6) is provided with a hole, and the bracket mounting base is provided with a shaft hole. The bracket rotating shaft (10) passes through the center hole of the worm gear (6) and the through hole of the bracket mounting base at the same time.

6. The crane floodlight pan-tilt according to claim 4, characterized in that, The bracket rotating arm (7) is of two parallel structures. The worm gear (6) is integrally formed with the bracket rotating arm (7). One end of the bracket rotating arm (7) is fixedly connected to the bracket plane (8), and the other end is processed into the shape of a worm gear (6) to cooperate with the worm (3).

7. The crane floodlight pan-tilt as described in claim 1, characterized in that, A protective cover is provided on the core base. The protective cover includes a top protective cover and a bottom protective cover, and a wiring port is opened on the protective cover.

8. The crane floodlight pan-tilt according to claim 4, characterized in that At least one floodlight mounting hole is provided below the bracket plane (8).

9. The crane floodlight pan-tilt as claimed in claim 1, wherein, Circuit board mounting posts are provided on the slewing platform (1).

10. The crane floodlight pan-tilt according to claim 1, characterized in that, A central main shaft (14) is fixedly connected to the middle of the slewing platform (1). A main shaft mounting hole is provided at the center of the core base, and the central main shaft (14) is rotatably installed in the main shaft mounting hole.

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