360-degree lamplight vertical anti-shaking device for maritime work crane

Abstract

The utility model belongs to the field of offshore lamplight operation, and particularly relates to a 360-degree lamplight vertical anti-shaking device of a maritime work crane, which comprises a shaft sleeve, an outer hole sleeve, an inner rotating shaft and a plurality of groups of damping parts, each group of damping parts comprises damping oil, a pair of bearing bushes and a pair of adjusting bolts, each pair of bearing bushes is in clearance fit with an annular groove of the inner rotating shaft, and each pair of bearing bushes is in clearance fit with the annular groove of the inner rotating shaft. Damping oil is filled between the bearing bush and the annular groove of the inner rotating shaft, and the adjusting bolt is connected with the top face of the bearing bush and located in the groove hole of the outer hole sleeve. The 360-degree lamplight vertical anti-shaking device of the maritime work crane is horizontally installed on the two sides of a crane arm head, a lighting device is hung on the lower portion of the 360-degree lamplight vertical anti-shaking device, multiple sets of adjustable dampers are installed and can be adjusted at any time, 360-degree free rotation can be achieved, the 360-degree lamplight vertical anti-shaking device can change along with the angle of the crane at any time, and the 360-degree lamplight vertical anti-shaking device can effectively adapt to the weight change of the lighting device; and shaking caused by sea wind and fluctuating can be effectively prevented, so that the lighting device always keeps vertical downward irradiation.

Description

Technical Field

[0001] This utility model belongs to the field of marine lighting operations, and in particular, it is a 360-degree vertical anti-sway device for marine crane lighting. Background Technology

[0002] When deck cranes operate at night on the sea, the swaying caused by sea winds or the movement of the lights can cause dizziness and even lead to falls into the sea for deck workers. Furthermore, the inability to adjust lighting fixtures of varying weights according to their weight limits its versatility and suitability for diverse applications.

[0003] Chinese patent CN222297801U discloses a shockproof light fixture for roll-on / roll-off ships, including a mounting base, a fixing block, a shockproof support rod, and circular feet. A support crossbar is provided on the upper end of the light fixture support rod, and lamp holders are provided at both ends of the support crossbar. The fixing block is located at the center of the outer surface of the light fixture support rod, the shockproof support rod is located on the outer surface of the fixing block, and the circular feet are located at the end of the shockproof support rod away from the fixing block. A rubber pad is provided on the lower end of the circular feet. Mounting holes are provided at both ends of the four sets of circular feet, and lamp covers are provided on the outer surface of the two sets of lamp holders.

[0004] The anti-vibration light fixture for roll-on / roll-off ships in this patent is fixed to the floor of the ship's cabin and is not suitable for nighttime lighting of offshore cranes. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a 360-degree vertical anti-sway device for the lights of marine cranes. On the one hand, it can effectively prevent the lights of marine cranes from swaying, reduce the danger to the lives of workers, and improve work efficiency. On the other hand, it can adapt to lighting devices of different weights and is applicable in a variety of occasions.

[0006] The technical solution adopted by this utility model to solve the technical problem is:

[0007] This utility model provides a 360-degree vertical anti-sway device with lighting for an offshore crane, comprising: a bushing, an outer sleeve, an inner rotating shaft, and multiple sets of damping components; one end of the outer sleeve is welded to the bushing, and multiple pairs of slots are symmetrically formed on the side wall of the outer sleeve; the inner rotating shaft is rotatably installed inside the outer sleeve, one end of the inner rotating shaft is connected to the bushing, and multiple annular grooves are formed in the middle of the inner rotating shaft; each set of damping components includes damping oil, a pair of bearing bushes, and a pair of adjusting bolts, with each pair of bearing bushes having a clearance fit with the annular grooves of the inner rotating shaft, and the bearing bushes and... Damping oil is installed between the annular grooves of the inner rotating shaft. The adjusting bolt is connected to the top surface of the bearing and is located in the slot of the outer sleeve. During installation, the bottom surface of the bearing sleeve is connected to the offshore crane, so that the whole is installed horizontally on the offshore crane. The lighting device is installed at the end of the inner rotating shaft. When the offshore crane shakes or the weight of the suspended lighting device changes, the adjusting bolt of the damping component squeezes the bearing. The force of pressing down on the bearing adjusts the rotation force of the inner rotating shaft, so that the inner rotating shaft can rotate freely and always keep the lighting device shining vertically downward.

[0008] Furthermore, the end of the inner rotating shaft is a lighting device connection end, and the lighting device connection end is threaded.

[0009] Furthermore, it also includes a first bearing and a second bearing, which are respectively fitted onto both ends of the inner rotating shaft.

[0010] Furthermore, a retaining ring and a sealing ring are installed sequentially on the right side of the second bearing.

[0011] Furthermore, the adjusting bolt is a convex-end set screw.

[0012] Furthermore, the bushing has multiple mounting holes.

[0013] The advantages and positive effects of this utility model are:

[0014] This utility model relates to a 360-degree vertical anti-sway device for marine cranes. The device is horizontally installed on both sides of the crane boom, with lighting fixtures hanging below. Multiple adjustable dampers are installed for easy adjustment at any time. It can rotate freely 360 degrees and follow the crane's angle changes. It can effectively prevent swaying caused by sea winds and undulations, ensuring that the lighting fixtures always shine vertically downwards. It can also effectively adapt to changes in the weight of the lighting fixtures and is suitable for various working environments. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the 360-degree vertical anti-sway device for marine cranes according to this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bushing of this utility model;

[0017] Figure 3This is a side view of the bushing of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the outer hole sleeve of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the inner rotating shaft of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the bearing bush of this utility model;

[0021] Figure 7 This is a schematic diagram of the assembly of the inner rotating shaft and bearing bush of this utility model.

[0022] The above figures include the following reference numerals:

[0023] 1-Sleeve; 11-Mounting hole; 2-Outer sleeve; 21-Slot; 3-Inner rotating shaft; 31-Annular groove; 32-Lighting device connection end; 4-Bearing shell; 5-Adjusting bolt; 6-First bearing; 7-Second bearing; 8-Snap ring; 9-Sealing ring. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] like Figures 1-7As shown, this utility model provides a 360-degree vertical anti-sway device for marine cranes, including: bushing 1, outer bushing 2, inner rotating shaft 3, and multiple damping components.

[0028] like Figures 1-4 As shown, one end of the outer sleeve 2 is welded to the bushing 1. In addition, the bushing 1 has multiple mounting holes 11, which facilitates the installation and fixation of the bushing 1 with the offshore crane.

[0029] like Figures 1-5 As shown, the inner rotating shaft 3 is rotatably installed inside the outer bushing 2, with one end of the inner rotating shaft 3 connected to the bushing 1. To achieve better connection and fixation with the lighting device and prevent the lighting device from sliding or wobbling, the end of the inner rotating shaft 3 is a lighting device connection end 32, which is threaded and used to install and fix the lighting device. Specifically, the thread on the lighting device connection end 32 of the inner rotating shaft 3 is a 12 mm diameter thread (M12). To better support the inner rotating shaft 3, a first bearing 6 and a second bearing 7 are respectively fitted at both ends of the inner rotating shaft 3. A retaining ring 8 and a sealing ring 9 are installed sequentially on the right side of the second bearing 7. The retaining ring 8 effectively prevents the second bearing 7 from falling off, and the sealing ring 9 provides a good seal, which is beneficial for waterproofing and pollution prevention.

[0030] like Figures 1-7 As shown, each damping component includes damping oil, a pair of bearing shells 4, and a pair of adjusting bolts 5. The inner rotating shaft 3 has multiple annular grooves 31 in its center. Each pair of bearing shells 4 is clearance-fitted to the annular grooves 31 of the inner rotating shaft 3. Damping oil is installed between the bearing shells 4 and the annular grooves 31 of the inner rotating shaft 3. The adjusting bolts 5 are connected to the top surface of the bearing shells 4 and are located within the slot 21 of the outer sleeve 2. The adjusting bolts 5 are convex-end set screws.

[0031] The adjustment principle of the damping component is as follows: When the force on the 360-degree vertical anti-sway device of the marine crane changes, the adjusting bolt 5 of the damping component will press the bearing 4, and the gap between the bearing 4 and the inner rotating shaft 3 will be adjusted with the help of liquid damping oil. The rotation force of the inner rotating shaft 3 will be adjusted according to the force of pressing down the bearing 4, so as to realize the free rotation of the inner rotating shaft 3 and maintain the vertical illumination state of the lighting device.

[0032] The method of using this utility model is as follows:

[0033] During installation, the bottom surface of bushing 1 is connected to the offshore crane, so that the whole is installed horizontally on the offshore crane. The lighting device is installed at the end of the inner rotating shaft 3. When the offshore crane shakes or the weight of the suspended lighting device is changed, the adjusting bolt 5 of the damping component squeezes the bearing 4. The force of pressing down the bearing 4 adjusts the rotation force of the inner rotating shaft 3, so that the inner rotating shaft 3 can rotate freely and always keep the lighting device shining vertically downward.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A 360-degree light vertical anti-rolling device for a marine crane, characterized in that, The utility model relates to a marine crane lighting device, which comprises the following parts: a shaft sleeve (1); an outer hole sleeve (2) welded with the shaft sleeve (1) at one end, and a plurality of pairs of slot holes (21) symmetrically formed on the side wall of the outer hole sleeve (2); an inner rotating shaft (3) rotatably installed in the outer hole sleeve (2), with one end connected with the shaft sleeve (1) and a plurality of annular grooves (31) formed in the middle part of the inner rotating shaft (3); a plurality of groups of damping components, each group of damping components comprising damping oil, a pair of bearing bushes (4) and a pair of adjusting bolts (5), each pair of bearing bushes (4) being in clearance fit with the annular grooves (31) of the inner rotating shaft (3), the damping oil being filled between the bearing bushes (4) and the annular grooves (31) of the inner rotating shaft (3), and the adjusting bolts (5) being connected with the top surfaces of the bearing bushes (4) and located in the slot holes (21) of the outer hole sleeve (2); when the device is installed, the bottom surface of the shaft sleeve (1) is connected with a marine crane, so that the device is installed horizontally on the marine crane, and a lighting device is installed at the end of the inner rotating shaft (3); when the marine crane shakes or the weight of the suspended lighting device changes, the adjusting bolts (5) of the damping components press the bearing bushes (4), the rotating force of the inner rotating shaft (3) is adjusted by the pressing force of the bearing bushes (4), the inner rotating shaft (3) is freely rotated, and the lighting device is always kept vertically downward irradiating.

2. A 360-degree light anti-rolling device for an offshore crane according to claim 1, characterized in that The end of the inner rotating shaft (3) is a lighting device connecting end (32), and threads are formed on the lighting device connecting end (32).

3. A 360-degree light anti-rolling device for an offshore crane according to claim 2, characterized in that The device further comprises a first bearing (6) and a second bearing (7) sleeved on the two ends of the inner rotating shaft (3), respectively.

4. A 360-degree light anti-rolling device for an offshore crane according to claim 3, characterized in that A clamping spring (8) and a sealing ring (9) are sequentially installed on the right side of the second bearing (7).

5. A 360-degree light anti-rolling device for an offshore crane according to claim 4, characterized in that The adjusting bolts (5) are convex end set screws.

6. A 360-degree light anti-rolling device for an offshore crane according to claim 5, characterized in that A plurality of mounting holes (11) are formed on the shaft sleeve (1).

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