Lifting / lowering platform for welding and maintenance of pile-driving barge

Abstract

Embodiments of the present application relate to the technical field of auxiliary devices for welding and maintenance of pile-driving barges, and provide a lifting / lowering platform for welding and maintenance of a pile-driving barge. The lifting / lowering platform for welding and maintenance of a pile-driving barge comprises a frame; rails are fixedly connected to two sides of the frame; guide pulleys are slidably connected to inner cavities of the rails; sliding frames are fixedly connected to the outer sides of the guide pulleys; protective outer covers are fixedly connected to the outer sides of the sliding frames; a main platform is provided on the side of each sliding frame close to the corresponding protective outer cover; an adjusting assembly is provided at the bottom of the sliding frame; an extension assembly is provided on two sides of the main platform; a balance assembly is provided in the protective outer cover; a protective side cover is provided on the side of the extension assembly away from the main platform; a traction assembly is provided on the protective side cover; and a positioning assembly used in cooperation with the main platform is provided on one side of the traction assembly. Efficient welding and maintenance operations on pile-driving barges are achieved by means of a combination of area extension and horizontal leveling.

Description

A lifting platform for welding and repair of piling vessels Technical Field

[0001] This invention belongs to the technical field of auxiliary equipment for welding and maintenance of piling vessels, and particularly relates to a lifting platform for welding and maintenance of piling vessels. Background Technology

[0002] A piling vessel is a ship used for piling operations on water. It has a steel box-type hull and a piling frame at the end of the deck, allowing it to tilt forward and backward to accommodate the need for driving inclined piles. Piling vessels are not self-propelled and are towed into position by push (tug) wheels. They are widely used in bridge, dock, and water conservancy engineering construction. A lifting platform is a multi-functional lifting and unloading machine, which can be divided into fixed and mobile types. Mobile lifting platforms include straight boom, articulated boom, scissor lift, mast lift, aluminum alloy lifting platform, and telescopic cylinder lift. Fixed lifting platforms include scissor lift, guide rail lifting platform, chain lifting platform, loading and unloading platform, and attached electric construction platform, etc.

[0003] In the existing technology (patent application CN104340829B, entitled "Lifting Platform"), the lifting platform has four layers of protection, making it safe and reliable; its motion tracking is reliable, adjustable within a wide range of movement speeds, and suitable for both welding and conveying work. It employs eccentric sleeve adjustment technology, which allows for very convenient adjustment of the gap between the platform support and the track, as well as the meshing gap between the traveling gear and the arc-shaped rack. However, in the process of implementing this technical solution, at least the following problems were found in the existing technology.

[0004] After prolonged use, piling vessels require regular welding maintenance and repair using a lifting platform. However, most of the lifting platforms currently in use are single-frame lifting structures. Due to the large welding and repair area of ​​piling vessels and the varying welding and repair angles, the traditional lifting frame structure, which cannot be adjusted, cannot meet the welding maintenance and repair needs. This necessitates frequent changes in the position of the lifting platform, which is time-saving, labor-saving, and extremely inefficient. Summary of the Invention

[0005] This application aims to address at least one of the technical problems in the prior art that prevent the efficient welding and repair operations of piling vessels from being performed using a combination of area expansion and horizontal trimming. To this end, this application proposes a lifting platform for welding and repairing piling vessels.

[0006] To achieve the above objectives, the specific technical solution of the present invention is as follows: A lifting platform for welding and repairing a piling vessel includes a frame, with rails fixedly connected to both sides of the frame, and guide pulleys slidably connected to the inner cavities of the rails. A sliding frame is fixedly connected to the outer side of the guide pulleys, and a protective outer cover is fixedly connected to the outer side of the sliding frame. A protective inner cover is fixedly connected to the inner side of the sliding frame. A main platform is provided on the side of the sliding frame closest to the protective outer cover, and an adjustment component for use with the main platform is provided at the bottom of the sliding frame. Extension components are provided on both sides of the main platform, and a balancing component for use with the main platform is provided inside the protective outer cover. A protective side cover is provided on the side of the extension component away from the main platform, and a pulling component is provided on the protective side cover. A positioning component for use with the main platform is provided on one side of the pulling component.

[0007] Preferably, the adjustment assembly includes a servo motor embedded in the center of the bottom of the sliding frame, and the output shaft of the servo motor is embedded with a three-stage electric push rod. The piston rod of the three-stage electric push rod is fixedly connected to a drive spur gear that cooperates with the protective cover. A locking seat is fixedly connected to the center of the outer side of the drive spur gear. A locking head that engages with the locking seat is provided on the side of the main platform near the drive spur gear. A rotating rod that rotates with the main platform is fixedly connected to the outer side of the locking head.

[0008] Preferably, the extension assembly includes a drive bevel gear fixed to the outside of the rotating rod, and a driven bevel gear meshes with the outside of the drive bevel gear. The inner cavity of the driven bevel gear is fixedly connected to a bidirectional lead screw that rotatably engages with the bottom of the inner cavity of the main platform. Both sides of the bidirectional lead screw are threadedly connected to lead screw sleeves. Both sides of the lead screw sleeves are fixedly connected to support arms. The bottom of the support arms is fixedly connected to a secondary platform that slidably engages with the main platform. One corner of one set of secondary platforms is fixedly connected to a protective side cover through a mounting component.

[0009] Preferably, the traction assembly includes a fixed head fixed at the center of the upper and lower sides of the main platform, and a thin steel wire rope is fixedly connected to one side of the fixed head. A winding wheel is wound around the end of the thin steel wire rope away from the fixed head, and a rotating column that rotates with the protective side cover is fixedly connected to the inner cavity of the winding wheel. A rotating sleeve that rotates with one of the auxiliary platforms is rotatably connected from top to bottom on the surface of the rotating column. A rotary platform that is used with the main platform is fixedly connected to the outer side of the rotating column through a reinforcing member. An extension platform is fixedly connected to the other side of the rotary platform.

[0010] Preferably, the positioning component includes a first circuit breaker fixed on one side of the rotary platform, and a first electromagnet for cooperating with the first circuit breaker is embedded on the other side of the rotary platform. A first limiting magnet for cooperating with the first electromagnet is embedded on the side of the main platform near the sliding frame. A hinge seat is fixedly connected to the opposite side of the main platform and the rotary platform. A return spring for stretching and resetting the rotary platform and the extension platform is fixedly connected to the inner side of the hinge seat.

[0011] Preferably, the balancing assembly includes an annular slide rail on the side of the sliding frame near the inner cavity of the protective cover, and a support slider is slidably connected around the annular slide rail. A double-sided gear ring that meshes with a drive gear is fixedly connected to the outer side of the support slider, and a central rotating gear that rotates with the protective cover is meshed around the inner cavity of the double-sided gear ring. A driven gear meshes with the inner side of the central rotating gear, and a rotating shaft that rotates with the sliding frame, the protective cover, and the protective inner cover is fixedly connected to the inner cavity of the driven gear. A bracket that is fixedly connected to the main platform is fixedly connected to the outer side of the rotating shaft.

[0012] Preferably, the main platform has hidden cavities on both sides of its inner cavity that slide with the secondary platform, and the secondary platform has protective nets fixedly connected to both sides of the secondary platform near the sliding frame that are fixedly connected with the main platform. The main platform has sliding cylinders fixedly connected to both the upper and lower sides away from the sliding frame, and the sliding cylinders have smooth rods slidably connected to both sides of their inner cavities that are fixedly connected with the secondary platform.

[0013] Preferably, a balance sensor is fixedly connected to the top of the outer side of the main platform, and a first arc-shaped slide rail is provided at the bottom of the outer side of the protective cover. The inner cavity of the first arc-shaped slide rail is slidably connected to a first arc-shaped slider that is fixedly matched with the bracket, and a scale groove is provided on the side of the protective cover near the first arc-shaped slide rail.

[0014] Preferably, the protective cover has a second arc-shaped slide rail on both sides, and the inner cavity of the second arc-shaped slide rail is slidably connected to a second arc-shaped slider that is fixedly matched with the main platform. The upper and lower sides of the sliding frame have arc-shaped slide grooves, and the inner cavity of the arc-shaped slide grooves is slidably connected to an arc-shaped slide frame that is fixedly matched with the main platform.

[0015] Preferably, winches are fixedly connected to both the upper and lower sides of the bottom of the inner cavity of the frame, and a drive motor is fixedly connected to one side of the winch. A thick steel wire rope is wound on the winch, and a load-bearing pulley that is fixedly matched with the top of the frame is connected to the end of the thick steel wire rope away from the winch. A connector that is fixedly matched with the thick steel wire rope is fixedly connected to the top of the sliding frame.

[0016] The lifting platform for welding and maintenance of piling vessels of the present invention has the following advantages: 1. During the welding and maintenance of piling vessels, the lifting platform first uses a winch, thick steel wire rope, load-bearing pulleys and connecting parts to drive the sliding frame and main platform on both sides of the track on the frame to achieve the lifting effect. After the two main platforms reach the welding and maintenance position of the piling vessel, a servo motor provides a unified drive source, saving drive power costs. At the same time, the position and stroke of the drive gear are switched and adjusted by the three-stage electric push rod, and the locking stroke between the locking seat and the locking head is also adjusted to the correct position. Then, the servo motor drives the rotating rod to rotate through the locking seat and locking head locked in place on the drive gear. Then, the drive bevel gear and driven bevel gear on the rotating rod drive the bidirectional lead screw to rotate. The bidirectional lead screw achieves the expansion effect of the two auxiliary platforms through the support arms on the two sets of lead screw sleeves, expanding the operating space and operating area of ​​the two main platforms, which is beneficial for welding workers to weld and repair large damaged areas on the piling vessel.

[0017] 2. This type of lifting platform for welding and maintenance of piling vessels, subsequently, is secured by two sets of fixed heads that pull on two thin steel wire ropes, forcing the reel extending from the two auxiliary platforms to rotate. The two reel drives two rotating columns to rotate within the rotating sleeve. The rotating columns then move the two slewing platforms and extension platforms inward to one side of the extended auxiliary platforms, further expanding the operating space and area of ​​the two main platforms. Simultaneously, due to the corner extension design of the two extension platforms, the welding position of the welders can also be changed. After the two sets of slewing platforms and extension platforms are pulled into place, the two sets of first circuit breakers, first electromagnets, and first limit magnets first perform electromagnetic adsorption positioning treatment on the two sets of slewing platforms and extension platforms and the two sets of main platforms to prevent the two sets of slewing platforms and extension platforms from detaching from the two sets of main platforms and to improve their safety performance. In addition, the two sets of hinge seats and return springs play an elastic buffering and pull-back reset role between the two sets of slewing platforms and extension platforms and the two sets of main platforms, which further facilitates the welding workers to carry out welding repair work on the large damaged areas of the piling vessel.

[0018] 3. This type of lifting platform for welding and maintenance of piling vessels, according to the needs of the welding and maintenance position of the piling vessel, during the period when the frame tilts to follow the welding and maintenance position of the piling vessel, firstly, the annular slide rail and support slider provide rotational support for the double-sided gear ring, and then the three-stage electric push rod switches and adjusts the meshing stroke of the drive gear and the double-sided gear ring. Then, the servo motor drives the double-sided gear ring to rotate according to the tilt position through the meshed drive gear. The double-sided gear ring drives the driven gear to rotate stably through three sets of intermediate rotating gears. Then, the driven gear drives the main platform on the support through the rotating shaft to achieve a horizontal rotation adjustment effect, so as to prevent the main platform from tilting with the frame and affecting the welding and maintenance work of the welding workers on the piling vessel, thereby further improving the welding and maintenance efficiency of the piling vessel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 is a front view of the initial state of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 2 is a rear view of the initial state of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 3 is a working state diagram of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 4 is a horizontal adjustment diagram of the left-tilted frame structure of the present invention; Figure 5 is a horizontal adjustment diagram of the right-tilted frame structure of the present invention; Figure 6 is a partial rear view of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 7 is a partial front view of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 8 is a partial exploded view of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 9 is a partial sectional view of the lifting platform structure for welding and repairing a piling vessel according to the present invention; Figure 10 is an initial state diagram of the adjusting component and extension component structure of the present invention; Figure 11 is an expanded state diagram of the adjusting component and extension component structure of the present invention; Figure 12 is a partial exploded view of the adjusting component and extension component structure of the present invention; Figure 13 is a bottom view of the adjusting component and balancing component structure of the present invention; Figure 14 is an exploded view of the adjusting component and balancing component structure of the present invention. Figure 15 is a front view of the main platform, sub-platform, protective side cover, traction assembly, and positioning assembly of the present invention; Figure 16 is a rear view of the traction assembly and positioning assembly of the present invention; Figure 17 is a rear sectional view of the sliding frame, protective outer cover, protective inner cover, main platform, adjustment assembly, balancing assembly, and limiting assembly of the present invention; Figure 18 is a partial side view of the balancing assembly and limiting assembly of the present invention; Figure 19 is a partial rear view of the main platform, support, and limiting assembly of the present invention; Figure 20 is an exploded front view of the sliding frame, protective outer cover, protective inner cover, and second limiting magnet structure of the present invention; Figure 21 is a bottom view of the frame, track, sliding frame, winch, thick steel wire rope, load-bearing pulley, and connecting parts of the present invention.

[0021] Explanation of markings in the diagram: 1. Frame; 2. Track; 3. Guide pulley; 4. Sliding frame; 5. Protective outer cover; 6. Protective inner cover; 7. Main platform; 8. Adjustment assembly; 81. Servo motor; 82. Three-stage electric push rod; 83. Drive spur gear; 84. Locking seat; 85. Locking head; 86. Rotating rod; 9. Extension assembly; 91. Drive bevel gear; 92. Driven bevel gear; 93. Bidirectional lead screw; 94. Lead screw sleeve; 95. Support arm; 96. Secondary platform; 10. Protective side cover; 11. Pulling assembly; 111. Fixing head; 112. Thin steel wire rope; 113. Rewinding wheel; 114. Rotating column; 115. Rotating sleeve; 116. Rotating platform; 117. Extension platform; 12. Positioning assembly; 121. First circuit breaker; 122. First electromagnet; 123. First limit magnet; 124. Hinge seat; 1 25. Return spring; 13. Balancing assembly; 131. Circular slide rail; 132. Support slider; 133. Double-sided gear ring; 134. Central rotating gear; 135. Driven gear; 136. Rotating shaft; 137. Bracket; 14. Limiting assembly; 141. Second circuit breaker; 142. Second electromagnet; 143. Second limit magnet; 144. Ratchet; 145. Pawl; 146. Limiting spring; 147. Reset lever; 148. Reserved window; 15. Hidden cavity; 16. Protective net; 17. Slide cylinder; 18. Smooth rod; 19. Balance sensor; 20. First arc-shaped slide rail; 21. First arc-shaped slider; 22. Second arc-shaped slide rail; 23. Second arc-shaped slider; 24. Arc-shaped slide groove; 25. Arc-shaped carriage; 26. Winch; 27. Thick steel wire rope; 28. Load-bearing pulley; 29. ​​Connecting piece. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention 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. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0024] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0027] As shown in Figures 1-21, a lifting platform for welding and repairing a piling vessel according to the present invention includes a frame 1. Rails 2 are fixedly connected to both sides of the frame 1. In this application, the frame 1 is a simplified version. Guide pulleys 3 are slidably connected to the inner cavity of the rails 2. A sliding frame 4 is fixedly connected to the outer side of the guide pulleys 3, and a protective cover 5 is fixedly connected to the outer side of the sliding frame 4. A protective inner cover 6 is fixedly connected to the inner side of the sliding frame 4. A main platform 7 is provided on the side of the sliding frame 4 closest to the protective outer cover 5. A single door that moves back and forth between the main platform 7 and the auxiliary platform 96 and the rotating platform 116 is hinged to one side of the main platform 7. Winches 26 are fixedly connected to the upper and lower sides of the bottom of the inner cavity of the frame 1, and a drive motor is fixedly connected to one side of the winch 26. A thick steel wire rope 27 is wound on the winch 26, and the end of the thick steel wire rope 27 away from the winch 26 is connected to a load-bearing pulley 28 that is fixedly engaged with the top of the frame 1. The top of the sliding frame 4 is fixedly connected to a connector 29 that is fixedly engaged with the thick steel wire rope 27. Two sets of drive motors provide forward and reverse drive sources to the winch 26. The two sets of winches 26, through the two thick steel wire ropes 27 and under the guidance and transmission of the two sets of load-bearing pulleys 28, achieve a smooth lifting and lowering effect on the main platform 7 on the two sets of sliding frames 4 through the two sets of connectors 29. Furthermore, the bottom of the sliding frame 4 is equipped with an adjustment component 8 that works in conjunction with the main platform 7. Both sides of the main platform 7 are equipped with extension components 9 to expand the operating space and operating area of ​​the two main platforms 7. The protective cover 5 is equipped with a balancing component 13 that works in conjunction with the main platform 7. According to the needs of the welding and maintenance position of the piling vessel, the main platform 7 can be horizontally rotated and adjusted when the frame 1 tilts with the welding and maintenance position of the piling vessel, so as to prevent the main platform 7 from tilting with the frame 1 and affecting the welding and maintenance work of the welding workers on the piling vessel, thereby improving the welding and maintenance efficiency of the piling vessel. The side of the extension component 9 away from the main platform 7 is equipped with a protective side cover 10, and the protective side cover 10 is equipped with a pulling component 11. The side of the pulling component 11 is equipped with a positioning component 12 that works in conjunction with the main platform 7, further expanding the operating space and operating area of ​​the two main platforms 7, which is conducive to the welding workers to carry out welding and maintenance work on large damaged areas on the piling vessel.

[0028] As shown in Figures 10-16, the adjustment component 8 includes a servo motor 81 embedded in the center of the bottom of the sliding frame 4. The servo motor 81 provides a unified drive source, saving drive power costs. The output shaft of the servo motor 81 is embedded with a three-stage electric push rod 82. The piston rod of the three-stage electric push rod 82 is fixedly connected to a drive gear 83 that works with the protective cover 5. The three-stage electric push rod 82 switches the position and stroke of the drive gear 83 back and forth. A locking seat 84 is fixedly connected to the center of the outer side of the drive gear 83. A locking head 85 that engages with the locking seat 84 is provided on the side of the main platform 7 near the drive gear 83. The engagement stroke between the locking seat 84 and the locking head 85 is adjusted to the correct position by the drive gear 83. A rotating rod 86 that rotates with the main platform 7 is fixedly connected to the outer side of the locking head 85. The servo motor 81 drives the rotating rod 86 to rotate through the locking seat 84 and the locking head 85 engaged on the drive gear 83. The extension component 9 includes a drive bevel gear 91 fixed to the outside of the rotating rod 86, and a driven bevel gear 92 meshing with the outside of the drive bevel gear 91. The inner cavity of the driven bevel gear 92 is fixedly connected to a bidirectional lead screw 93 that rotates with the bottom of the inner cavity of the main platform 7. The bidirectional lead screw 93 is driven to rotate by the drive bevel gear 91 and the driven bevel gear 92 on the rotating rod 86. Both sides of the bidirectional lead screw 93 are threadedly connected to lead screw sleeves 94. Both sides of the lead screw sleeves 94 are fixedly connected to support arms 95. The bottom of the support arms 95 is fixedly connected to a secondary platform 96 that slides with the main platform 7. One corner of one set of secondary platforms 96 is fixedly connected to the protective side cover 10 through an installation component. The bidirectional lead screw 93 achieves the extension effect of the two sets of secondary platforms 96 through the support arms 95 on the two sets of lead screw sleeves 94, expanding the operating space and operating area of ​​the two sets of main platforms 7, which is beneficial for welding workers to weld and repair large damaged areas on the piling vessel. Both sides of the inner cavity of the main platform 7 are provided with hidden cavities 15 that slide with the secondary platform 96. These cavities conceal the secondary platform 96 in its initial state and provide sliding support for the secondary platform 96 in its extended state. Protective nets 16, which are fixedly connected to the main platform 7 and extend with the secondary platform 96 as it expands, are also fixedly connected to the upper and lower sides of the main platform 7 to enhance safety. Slide cylinders 17 are fixedly connected to the upper and lower sides of the main platform 7 away from the slide cylinder 4. Smooth rods 18, which are fixedly connected to the secondary platform 96 and slidably connected to the inner sides of the slide cylinder 17, provide sliding support for the secondary platform 96 in its extended state and also provide protection for the outer areas of the secondary platform 96 and the main platform 7, further enhancing overall safety.

[0029] The traction assembly 11 includes a fixed head 111 fixed at the center of the upper and lower sides of the main platform 7, and a thin steel wire rope 112 is fixedly connected to one side of the fixed head 111. The two fixed heads 111 fix and pull the two thin steel wire ropes 112. The end of the thin steel wire rope 112 away from the fixed head 111 is wound with a winding wheel 113. The other ends of the two thin steel wire ropes 112 are forced to rotate with the winding wheels 113 that extend outward from the two sets of auxiliary platforms 96. Furthermore, the inner cavity of the take-up reel 113 is fixedly connected to a rotating column 114 that rotatably engages with the protective side cover 10. The surface of the rotating column 114 is rotatably connected from top to bottom to a rotating sleeve 115 that is fixedly engaged with one of the auxiliary platforms 96. The two sets of take-up reels 113 drive the two rotating columns 114 to rotate within the rotating sleeve 115. The outer side of the rotating column 114 is fixedly connected to a rotary platform 116 used in conjunction with the main platform 7 via a reinforcing member. The other side of the rotary platform 116 is fixedly connected to an extension platform 117. The two rotating columns 114 in the rotating state drive the two sets of rotary platforms 116 and extension platforms 117 to the inside to reach the side of the two auxiliary platforms 96 that have been extended into place, further expanding the operating space and operating area of ​​the two sets of main platforms 7. At the same time, since the two sets of extension platforms 117 adopt a corner extension design, the welding position of the welding worker can also be changed. The positioning component 12 includes a first circuit breaker 121 fixed on one side of the rotary platform 116, and a first electromagnet 122 used in conjunction with the first circuit breaker 121 is embedded on the other side of the rotary platform 116. A first limiting magnet 123 used in conjunction with the first electromagnet 122 is embedded on the side of the main platform 7 near the sliding frame 4. After the two sets of rotary platforms 116 and extension platforms 117 are pulled into place, the two sets of first circuit breakers 121, first electromagnets 122 and first limiting magnets 123 firstly perform electromagnetic adsorption positioning treatment on the two sets of rotary platforms 116 and extension platforms 117 and the two sets of main platforms 7 to prevent the two sets of rotary platforms 116 and extension platforms 117 from being separated from the two sets of main platforms 7, thereby improving their safety performance. Furthermore, a hinge seat 124 is fixedly connected to the opposite side of the main platform 7 and the rotating platform 116. A return spring 125 for stretching and resetting the rotating platform 116 and the extension platform 117 is fixedly connected to the inner side of the hinge seat 124. The two sets of hinge seats 124 and return springs 125 play an elastic buffering and pull-back reset role between the two sets of rotating platforms 116 and extension platforms 117 and the two sets of main platforms 7, which further facilitates welding workers to carry out welding repair work on large-area damaged areas on the piling vessel.

[0030] The balancing assembly 13 includes an annular slide rail 131 located on the side of the sliding frame 4 near the inner cavity of the protective cover 5. Support sliders 132 are slidably connected to all four sides of the annular slide rail 131. A double-sided gear ring 133, meshing with a drive gear 83, is fixedly connected to the outer side of the support sliders 132. First, the annular slide rail 131 and support sliders 132 provide rotational support for the double-sided gear ring 133. Then, a three-stage electric push rod 82 switches and adjusts the meshing stroke of the drive gear 83 and the double-sided gear ring 133. Finally, a servo motor 81 drives the double-sided gear ring 133 to rotate according to the tilt position via the engaged drive gear 83. The inner circumference of the double-sided gear ring 133 is also meshed with the protective cover 5. A rotating gear 134 is used for rotational engagement. A driven gear 135 meshes with the inner side of the rotating gear 134. A double-sided gear ring 133 drives the driven gear 135 to rotate stably through the three sets of rotating gears 134. A rotating shaft 136 is fixedly connected to the inner cavity of the driven gear 135, which rotates and engages with the sliding frame 4, the protective outer cover 5, and the protective inner cover 6. A bracket 137 is fixedly connected to the outer side of the rotating shaft 136, which is fixedly engaged with the main platform 7. The driven gear 135 drives the main platform 7 on the bracket 137 through the rotating shaft 136 to achieve a horizontal rotation adjustment effect, so as to prevent the main platform 7 from tilting with the frame 1, which would affect the welding and maintenance work of the welding workers on the piling vessel, and further improve the welding and maintenance efficiency of the piling vessel. A balance sensor 19 is fixedly connected to the top of the outer side of the main platform 7 to monitor the current level of the main platform 7 in real time, which is beneficial for the subsequent leveling work of the main platform 7. A first arc-shaped slide rail 20 is provided at the bottom of the outer side of the protective cover 5. A first arc-shaped slider 21 that is fixedly matched with the bracket 137 is slidably connected to the inner cavity of the first arc-shaped slide rail 20, which plays a role in sliding support for the bracket 137 and improves the rotational stability of the bracket 137. A scale groove is provided on the side of the protective cover 5 near the first arc-shaped slide rail 20 to facilitate the reading of the rotation angle of the bracket 137. The protective cover 5 has a second arc-shaped slide rail 22 on both sides, and the inner cavity of the second arc-shaped slide rail 22 is slidably connected to a second arc-shaped slider 23 that is fixedly matched with the main platform 7. The upper and lower sides of the sliding frame 4 have arc-shaped slide grooves 24, and the inner cavity of the arc-shaped slide grooves 24 is slidably connected to an arc-shaped slide frame 25 that is fixedly matched with the main platform 7. During the horizontal adjustment of the main platform 7, the sliding frame 4 plays a double sliding limit role between the main platform 7, the protective cover 5, and the sliding frame 4, improving the stability of the horizontal adjustment of the main platform 7 and also improving the safety performance of the main platform 7 during the horizontal adjustment.

[0031] As shown in Figures 17-19, when the frame 1 tilts at an angle while following the welding and repair position of the piling vessel, and the main platform 7 is horizontally adjusted by the balancing component 13, the initial state and horizontal adjustment state of the main platform 7 cannot be restricted, which would reduce the safety of the main platform 7 during the horizontal adjustment. The balancing component 13 is equipped with a limiting component 14 that works with the main platform 7. A second circuit breaker 141 is fixedly connected around the outer side of the main platform 7 near the sliding frame 4. A second electromagnet 142 that works with the second circuit breaker 141 is fixedly connected around the inner side of the main platform 7 near the sliding frame 4. A second limiting magnet 143 that works with the second electromagnet 142 is fixedly connected around the sliding frame 4 near the protective cover 5. The four sets of second circuit breakers 141, second electromagnets 142 and second limiting magnets 143 perform electromagnetic adsorption positioning between the main platform 7 and the sliding frame 4 in the initial state to prevent accidental rotation between the main platform 7 and the sliding frame 4. A ratchet 144 is fixedly connected to the side of the rotating shaft 136 near the inner protective cover 6, and one side of the ratchet 144 is engaged with the inner protective cover 6. The pawl 145 is rotated and engaged. A limiting spring 146, which is fixedly engaged with the protective inner cover 6, is fixedly connected to the side of the pawl 145 away from the ratchet 144. A reset lever 147 is fixedly connected to the side of the pawl 145 away from the limiting spring 146. The top of both the sliding frame 4 and the protective inner cover 6 are provided with reserved windows 148 that engage with the reset lever 147. The ratchet 144, pawl 145, and limiting spring 146 provide a reverse restriction on the rotating shaft 136 during horizontal trimming, so as to prevent the main platform 7 on the support 137 from rotating rapidly. This facilitates the slow and orderly horizontal trimming of the main platform 7. Furthermore, by moving the reset lever 147 through the reserved window 148, the reverse restriction on the ratchet 144 is released, which facilitates the horizontal trimming of the main platform 7 in another direction and improves the safety performance of the main platform 7 during horizontal trimming.

[0032] The working principle of a lifting platform for welding and maintenance of a piling vessel: First, two welding teams open the single doors on the two main platforms 7 and bring in the two welding and maintenance tools. After closing the two single doors, the two drive motors drive the two winches 26 to rotate. The two winches 26 synchronously wind up the two thick steel wire ropes 27. The two load-bearing pulleys 28 support and transmit the two thick steel wire ropes 27. With the cooperation of the two guide pulleys 3 limiting the sliding of the two sliding frames 4 and the rails 2, the shortened two thick steel wire ropes 27 drive the two sliding frames 4 to slide upward on the rails 2 on both sides of the frame 1 through the two connecting parts 29 until the two sliding frames 4 bring the welding workers on the two main platforms 7 to the welding and maintenance area of ​​the piling vessel. After the two main platforms 7 are raised into position, the two sets of three-stage electric push rods 82 are controlled to open synchronously and drive the locking seats 84 on the two sets of drive spur gears 83 to move outward and then lock onto the two sets of locking heads 85. At this time, the two sets of drive spur gears 83 and the double-sided gear ring 133 are disengaged. Then, the two sets of servo motors 81 are controlled to open and drive the two sets of drive spur gears 83 to rotate synchronously. The two sets of drive spur gears 83 drive the two rotating rods 86 to rotate through the two sets of locking seats 84 and locking heads 85 that are locked into position. The two rotating rods 86 drive the two sets of drive bevel gears 91 to rotate at the same time. The two sets of drive bevel gears 91 drive the two sets of bidirectional lead screws 93 on the two sets of driven bevel gears 92 to rotate in the forward direction. The two bidirectional lead screws 93 drive the two sets of lead screw sleeves 94 to move outward synchronously. Two sets of lead screw sleeves 94 drive the auxiliary platforms 96 on the two sets of support arms 95 to expand outward synchronously. At the same time, the two sets of auxiliary platforms 96 slide outward in the hidden cavity 15 area within the two sets of main platforms 7. The two sets of auxiliary platforms 96 in the outward state also drive the two sets of protective nets 16 to stretch outward, protecting the inner areas of the two sets of auxiliary platforms 96 and main platforms 7. At the same time, they also drive the two sets of smooth rods 18 to slide outward within the slide cylinder 17, protecting the outer areas of the two sets of auxiliary platforms 96 and main platforms 7. This continues until the two sets of auxiliary platforms 96 expand outward to the predetermined position and then stop. At this time, the two sets of servo motors 81 are first controlled to pause, and then the two sets of three-stage electric push rods 82 are controlled to close synchronously and drive the locking seats 84 on the two sets of drive spur gears 83 to move inward and disengage from the locking heads 85. At this time, the two sets of drive spur gears 83 are located in the initial position between the two sets of locking heads 85 and the double-sided gear ring 133.During the outward expansion of the sub-platforms 96 on the two main platforms 7, one of the outward-expanding sub-platforms 96 drives the thin steel wire rope 112 to pull outward. Since the fixing head 111 supports and fixes one end of the thin steel wire rope 112, the other end of the thin steel wire rope 112 is forced to drive the winding wheel 113 in the protective side cover 10 to rotate. The winding wheel 113 drives the rotating column 114 to rotate in the rotating sleeve 115 outside one of the sub-platforms 96. The rotating column 114 drives the rotating platform 116 and the extension platform 117 on the two main platforms 7 through the reinforcing member to pull inward in sync with the extended sub-platforms 96 until the rotating platform 116 and the extension platform 117 are pulled to the outside of the extended sub-platform 96, and the rotating platform 116 closes with the sub-platform 96. At the same time, the two sets of first electromagnets 122 and the first limiting magnets 123 are in contact. Immediately control the two sets of first circuit breakers 121 to energize and open the two sets of first electromagnets 122. The two sets of first electromagnets 122 then electromagnetically attract the first limit magnets 123 in the contact state, and electromagnetically attract and position the extended and pulled auxiliary platform 96, rotary platform 116 and extension platform 117. At the same time, the two sets of rotary platforms 116 pulled inward drive the two return springs 125 to stretch synchronously through the two sets of hinge seats 124. After the two sets of main platforms 7, auxiliary platforms 96, rotary platforms 116 and extension platforms 117 are all in place and connected as one, the two sets of welding workers can open the one-way door and walk on the two sets of main platforms 7, auxiliary platforms 96, rotary platforms 116 and extension platforms 117 after they are connected as one. Since the two sets of extension platforms 117 adopt the corner extension design, the welding position of the welding workers can also be changed, and the operating space and operating area of ​​the lifting platform are maximized, which is conducive to the two sets of welding workers to perform welding and maintenance operations on two areas of the piling vessel. According to the needs of the welding and maintenance position of the piling vessel, during the period when the frame 1 tilts at the welding and maintenance position of the piling vessel, the two sets of sliding frames 4 drive the two sets of main platforms 7 to tilt along with the frame 1. The two sets of welding workers also step on the tilted area of ​​the two sets of main platforms 7, which is not conducive to the work. In order to facilitate the welding and maintenance work of the welding workers, the two sets of three-stage electric push rods 82 are first controlled to open synchronously and drive the two sets of drive spur gears 83 to move inward and reach the meshing part of the two sets of double-sided gear rings 133. At this time, the locking seats 84 on the two sets of drive spur gears 83 are disengaged from the two sets of locking heads 85. With the two sets of annular slide rails 131 and support sliders 132 providing rotational support for the two sets of double-sided gear rings 133, the two sets of servo motors 81 are controlled to reopen and drive the two sets of double-sided gear rings 133 to rotate through the two sets of drive spur gears 83 that are in the meshing position. The two sets of double-sided gear rings 133 then drive the driven spur gear 135 to rotate through the intermediate spur gear 134.First, with the two sets of first arc-shaped slide rails 20 and first arc-shaped sliders 21 providing sliding limit cooperation for the two sets of brackets 137 and protective covers 5, the two sets of driven round gears 135 drive the two sets of brackets 137 to rotate through the rotating shaft 136. Then, with the two sets of second arc-shaped slide rails 22 and second arc-shaped sliders 23 providing sliding support cooperation for the left and right sides of the main platform 7 and the protective cover 5, and with the two sets of arc-shaped slide grooves 24 and arc-shaped slide frames 25 providing sliding support cooperation for the upper and lower sides of the main platform 7 and the sliding frame 4, the two sets of brackets 137 drive the two sets of main platforms 7 to rotate and adjust to a horizontal state. The two sets of balance sensors 19 detect the two sets of main platforms 7 adjusted to a horizontal state to ensure that the two sets of main platforms 7 are adjusted to a horizontal state. At this time, the two sets of welding workers can walk and work normally on the two sets of main platforms 7 in a horizontal state. They can also perform overall horizontal adjustment operations on the two sets of main platforms 7, as well as the two sets of pre-adjusted auxiliary platforms 96, rotary platforms 116 and extension platforms 117. Before leveling the two main platforms 7, the two sets of second circuit breakers 141 are controlled to cut off the power to the second electromagnets 142 in advance, so that the second electromagnets 142 contact the electromagnetic attraction of the second limit magnets 143. During the rotation of the two main platforms 7 to a horizontal state, the two sets of ratchet wheels 144 also rotate synchronously with the two shafts 136. The rotating ratchet wheels 144 drive the two sets of pawls 145 to skip teeth on their teeth. The two limit springs 146 provide elastic limit treatment for the skipping pawls 145, providing reverse restriction measures for the two sets of ratchet wheels 144 and shafts 136, so that the two main platforms 7 can perform leveling work smoothly and orderly. If the main platforms 7 need to be leveled in the opposite direction, the two sets of welding workers pass through the two sets of reserved windows 148 and push down the two reset levers 147. After the two reset levers 147 are depressed, they cause the two sets of pawls 145 to disengage from the teeth of the ratchet 144, compressing the two limit springs 146. This releases the reverse restriction of the two rotating shafts 136. Combined with the two sets of servo motors 81, which engage with the two sets of drive sprockets 83 and double-sided gear rings 133, this further locks the two main platforms 7 after horizontal adjustment, ensuring the stability and safety of the two main platforms 7 before and after horizontal adjustment. Similarly, the two sets of servo motors 81 are then turned in reverse, sequentially driving the brackets 137 on the two rotating shafts 136 to rotate in the opposite direction via the two sets of drive sprockets 83, the two sets of double-sided gear rings 133, the intermediate sprocket 134, and the driven sprocket 135. The reverse-rotating brackets 137 then drive the two main platforms 7 to perform horizontal adjustment in another direction until the two main platforms 7 are horizontally adjusted in either the forward or reverse direction.

[0033] It should be noted that the specific models and specifications of the servo motor 81, the three-stage electric push rod 82, the first circuit breaker 121, and the second circuit breaker 141 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0034] The power supply circuits for the servo motor 81, the three-stage electric actuator 82, the first circuit breaker 121, and the second circuit breaker 141 are clear to those skilled in the art and will not be described in detail here.

[0035] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A lifting platform for welding and repair of a piling vessel, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to both sides of the track (2), and the inner cavity of the track (2) is slidably connected to the guide pulley (3). The outer side of the guide pulley (3) is fixedly connected to the sliding frame (4), and the outer side of the sliding frame (4) is fixedly connected to the protective cover (5). The inner side of the sliding frame (4) is fixedly connected to the protective cover (6). The sliding frame (4) has a main platform (7) on one side near the protective cover (5), and the bottom of the sliding frame (4) is provided with an adjustment component (8) that works with the main platform (7). Both sides of the main platform (7) are provided with extension components (9), and the protective cover (5) is provided with a balance component (13) that works with the main platform (7). The extension component (9) is provided with a protective side cover (10) on the side away from the main platform (7), and a pulling component (11) is provided on the protective side cover (10). A positioning component (12) for use with the main platform (7) is provided on one side of the pulling component (11).

2. The lifting platform for welding and repairing a piling vessel according to claim 1, characterized in that: The adjustment assembly (8) includes a servo motor (81) embedded in the center of the bottom of the sliding frame (4), and the output shaft of the servo motor (81) is embedded with a three-stage electric push rod (82). The piston rod of the three-stage electric push rod (82) is fixedly connected to a drive spur gear (83) that works with the protective cover (5), and a locking seat (84) is fixedly connected to the center of the outer side of the drive spur gear (83). A locking head (85) that engages with the locking seat (84) is provided on the side of the main platform (7) near the drive spur gear (83), and a rotating rod (86) that rotates with the main platform (7) is fixedly connected to the outer side of the locking head (85).

3. The lifting platform for welding and repairing a piling vessel according to claim 2, characterized in that: The extension component (9) includes a drive bevel gear (91) fixed to the outside of the rotating rod (86), and a driven bevel gear (92) meshes with the outside of the drive bevel gear (91). The inner cavity of the driven bevel gear (92) is fixedly connected to a bidirectional lead screw (93) that rotates with the bottom of the inner cavity of the main platform (7). Both sides of the bidirectional lead screw (93) are threaded with lead screw sleeves (94). Both sides of the lead screw sleeves (94) are fixedly connected to support arms (95). The bottom of the support arms (95) is fixedly connected to a secondary platform (96) that slides with the main platform (7). One corner of one set of the secondary platforms (96) is fixedly connected to the protective side cover (10) through a mounting component.

4. The lifting platform for welding and repairing a piling vessel according to claim 3, characterized in that: The traction assembly (11) includes a fixed head (111) fixed at the center of the upper and lower sides of the main platform (7), and a thin steel wire rope (112) is fixedly connected to one side of the fixed head (111). A winding wheel (113) is wound around the end of the thin steel wire rope (112) away from the fixed head (111), and a rotating column (114) that rotates and cooperates with the protective side cover (10) is fixedly connected to the inner cavity of the winding wheel (113). A rotating sleeve (115) that is fixedly cooperates with one of the sub-platforms (96) is rotatably connected from top to bottom on the surface of the rotating column (114). A rotating platform (116) that is used in conjunction with the main platform (7) is fixedly connected to the outer side of the rotating column (114) through a reinforcing member. An extension platform (117) is fixedly connected to the other side of the rotating platform (116).

5. A lifting platform for welding and repairing a piling vessel according to claim 4, characterized in that: The positioning component (12) includes a first circuit breaker (121) fixed on one side of the rotary platform (116), and a first electromagnet (122) for use with the first circuit breaker (121) is embedded on the other side of the rotary platform (116). A first limiting magnet (123) for use with the first electromagnet (122) is embedded on the side of the main platform (7) near the sliding frame (4). A hinge seat (124) is fixedly connected to the side of the main platform (7) and the rotary platform (116) facing each other. A return spring (125) for stretching and resetting the rotary platform (116) and the extension platform (117) is fixedly connected to the inner side of the hinge seat (124).

6. A lifting platform for welding and repairing a piling vessel according to claim 5, characterized in that: The balancing assembly (13) includes an annular slide rail (131) opened on the side of the sliding frame (4) near the inner cavity of the protective cover (5), and a support slider (132) is slidably connected around the annular slide rail (131). A double-sided gear ring (133) meshing with the drive gear (83) is fixedly connected to the outer side of the support slider (132), and a central rotating gear (134) meshing with the protective cover (5) is meshed around the inner cavity of the double-sided gear ring (133). A driven gear (135) meshes with the inner side of the central rotating gear (134), and a rotating shaft (136) rotatably meshing with the sliding frame (4), the protective cover (5) and the protective inner cover (6) is fixedly connected to the inner cavity of the driven gear (135). A bracket (137) fixedly meshing with the main platform (7) is fixedly connected to the outer side of the rotating shaft (136).

7. A lifting platform for welding and repairing a piling vessel according to claim 6, characterized in that: The main platform (7) has hidden cavities (15) on both sides of its inner cavity that slide with the sub-platform (96). The sub-platform (96) is fixedly connected to the two sides of its inner cavity near the sliding frame (4) with protective nets (16) that are fixedly connected with the main platform (7). The main platform (7) is fixedly connected to the upper and lower sides away from the sliding frame (4) with sliding cylinders (17). The sliding cylinders (17) are slidably connected to the two sides of their inner cavities with smooth rods (18) that are fixedly connected with the sub-platform (96).

8. A lifting platform for welding and repairing a piling vessel according to claim 7, characterized in that: A balance sensor (19) is fixedly connected to the top of the outer side of the main platform (7), and a first arc-shaped slide rail (20) is provided at the bottom of the outer side of the protective cover (5). The inner cavity of the first arc-shaped slide rail (20) is slidably connected to a first arc-shaped slider (21) that is fixedly matched with the bracket (137), and a scale groove is provided on the side of the protective cover (5) near the first arc-shaped slide rail (20).

9. A lifting platform for welding and repairing a piling vessel according to claim 8, characterized in that: The protective cover (5) has a second arc-shaped slide rail (22) on both sides, and the inner cavity of the second arc-shaped slide rail (22) is slidably connected to a second arc-shaped slider (23) that is fixedly matched with the main platform (7). The upper and lower sides of the sliding frame (4) have arc-shaped slide grooves (24), and the inner cavity of the arc-shaped slide grooves (24) is slidably connected to an arc-shaped slide frame (25) that is fixedly matched with the main platform (7).

10. A lifting platform for welding and repairing a piling vessel according to claim 9, characterized in that: The frame (1) has a winch (26) fixedly connected to both the upper and lower sides of the bottom of the inner cavity, and a drive motor is fixedly connected to one side of the winch (26). A thick steel wire rope (27) is wound on the winch (26), and a load-bearing pulley (28) fixedly engaged with the top of the frame (1) is connected to the end of the thick steel wire rope (27) away from the winch (26). A connecting piece (29) fixedly engaged with the thick steel wire rope (27) is fixedly connected to the top of the sliding frame (4).

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