A lifting platform for welding and maintenance of pile-driving vessels

Abstract

The embodiment of the present application provides a lifting platform for welding and maintenance of a pile-driving ship, and relates to the technical field of auxiliary equipment for welding and maintenance of a pile-driving ship. A lifting platform for welding and maintenance of a pile-driving ship comprises a frame, both sides of the frame are fixedly connected with tracks, and the inner cavity of the track is slidably connected with a guide pulley, the outer side of the guide pulley is fixedly connected with a sliding frame, and the outer side of the sliding frame is fixedly connected with a protective cover, a main platform is provided on the side of the sliding frame close to the protective cover, and an adjustment component is provided at the bottom of the sliding frame, expansion components are provided on both sides of the main platform, and a balancing component is provided in the protective cover; a protective side cover is provided on the side of the expansion component away from the main platform, and a pulling component is provided on the protective side cover, and a positioning component used in conjunction with the main platform is provided on one side of the pulling component. The pile-driving ship is efficiently welded and maintained by combining area expansion and horizontal trimming.

Description

Technical Field

[0001] The invention belongs to the technical field of welding and maintenance auxiliary equipment for pile-driving ships, and in particular relates to a lifting platform for welding and maintenance of pile-driving ships. Background Art

[0002] A pile-driving barge is a vessel used for piling operations on water. The hull is a steel box structure, and a pile-driving frame is installed at the end of the deck, which can be tilted forward and backward to meet the needs of driving inclined piles. A pile-driving barge is a non-self-propelled ship, which is towed into place by a pusher (tug) wheel. Pile-driving barges are widely used in the construction of bridges, docks, and water conservancy projects. A lifting platform is a multi-functional lifting and loading and unloading mechanical equipment, which can be divided into fixed and mobile types: the mobile type is divided into straight arm type, curved arm type, scissors type, mast type, aluminum alloy lifting platform, and cylinder type: the fixed type includes scissors type, guide rail lifting platform, chain lifting platform, loading and unloading platform and attached electric construction platform, etc.

[0003] In the prior art (the patent application with publication number CN104340829B and patent name of lifting platform), the lifting platform has four layers of protection, which is safe and reliable; the motion tracking is reliable, adjustable within a large range of motion speed, suitable for welding and conveying objects, and adopts eccentric sleeve adjustment technology, which can easily adjust the gap between the platform bracket and the track and the meshing gap between the travel gear and the arc rack. In the process of implementing this technical solution, it is found that there are at least the following problems in the prior art.

[0004] After the pile-driving barge has been used for a long time, it is necessary to use a lifting platform to regularly perform welding maintenance operations on the pile-driving barge. However, the lifting platforms currently used are mostly single lifting box frame structures. Since the welding maintenance area of ​​the pile-driving barge is large and the welding maintenance angles are different, the traditional lifting box frame structure with non-adjustable area cannot meet its welding maintenance needs, and the position of the lifting platform needs to be changed frequently, which saves time and effort and is extremely inefficient. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems in the prior art that a combination of area expansion and horizontal trimming cannot be used to perform efficient welding and maintenance operations on a pile-driving vessel. To this end, the present application proposes a lifting platform for welding and maintenance of a pile-driving vessel.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A lifting platform for welding and maintenance of a pile-driving ship comprises a frame, both sides of the frame are fixedly connected with tracks, the inner cavity of the track is slidably connected with a guide pulley, the outer side of the guide pulley is fixedly connected with a sliding frame, the outer side of the sliding frame is fixedly connected with a protective outer cover, and the inner side of the sliding frame is fixedly connected with a protective inner cover;

[0008] A main platform is arranged on one side of the sliding frame close to the protective cover, and an adjustment component used in conjunction with the main platform is arranged at the bottom of the sliding frame, expansion components are arranged on both sides of the main platform, and a balancing component used in conjunction with the main platform is arranged in the protective cover;

[0009] A protective side cover is arranged on the side of the extension component away from the main platform, and a pulling component is arranged on the protective side cover. A positioning component used in conjunction with the main platform is arranged on one side of the pulling component.

[0010] Preferably: the adjustment component 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 driving circular gear used in conjunction with the protective outer cover, and a locking seat is fixedly connected to the center of the outer side of the driving circular gear, a locking head that is snap-fitted with the locking seat is provided on one side of the main platform close to the driving circular gear, and a rotating rod that rotates with the main platform is fixedly connected to the outer side of the locking head.

[0011] Preferably: the extension component includes a driving bevel gear fixed to the outside of the rotating rod, and the outside of the driving bevel gear is meshed with a driven bevel gear, the inner cavity of the driven bevel gear is fixedly connected with a bidirectional screw rod that rotates with the bottom of the inner cavity of the main platform, and both sides of the bidirectional screw rod are threadedly connected with screw rod sleeves, both sides of the screw rod sleeve are fixedly connected with support arms, and the bottom of the support arm is fixedly connected with a sub-platform that slides with the main platform, and one corner of one group of the sub-platforms is fixedly connected to the protective side cover through a mounting piece.

[0012] Preferably: the pulling 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 the inner cavity of the winding wheel is fixedly connected to a rotating column that rotates with the protective side cover, the surface of the rotating column is rotatably connected with a rotating sleeve that is fixedly matched with one group of auxiliary platforms from top to bottom, and the outer side of the rotating column is fixedly connected to a rotating platform used in conjunction with the main platform through a reinforcement member, and the other side of the rotating platform is fixedly connected to an extension platform.

[0013] Preferably: the positioning assembly includes a first circuit breaker fixed on one side of the rotating platform, and a first electromagnet used in conjunction with the first circuit breaker is embedded on the other side of the rotating platform, a first limiting magnet used in conjunction with the first electromagnet is embedded on the side of the main platform close to the sliding frame, and a hinge seat is fixedly connected to the side facing each other of the main platform and the rotating platform, and a reset spring for stretching and resetting the rotating platform and the extension platform is fixedly connected to the inner side of the hinge seat.

[0014] Preferably: the balancing assembly includes an annular slide rail opened on one side of the sliding frame close to the inner cavity of the protective outer cover, and the annular slide rail is slidably connected to a supporting slider on all four sides, the outer side of the supporting slider is fixedly connected to a double-sided gear ring meshing with the driving circular gear, and the inner cavity of the double-sided gear ring is meshed with a transfer circular gear that rotates with the protective outer cover on all four sides, the inner side of the transfer circular gear is meshed with a driven circular gear, and the inner cavity of the driven circular gear is fixedly connected to a rotating shaft that rotates with the sliding frame, the protective outer cover and the protective inner cover, and the outer side of the rotating shaft is fixedly connected to a bracket that is fixedly matched with the main platform.

[0015] Preferably: hidden cavities that slide with the auxiliary platform are provided on both sides of the inner cavity of the main platform, and protective nets that are fixedly connected to the main platform are fixedly connected on both sides of the auxiliary platform close to the sliding frame, and sliding cylinders are fixedly connected on the upper and lower sides of the main platform away from the sliding frame, and light rods that are fixedly connected to the auxiliary platform are slidably connected on both sides of the inner cavity of the sliding cylinder.

[0016] 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 fixedly matched with the bracket, and a scale groove is provided on one side of the protective cover close to the first arc-shaped slide rail.

[0017] Preferably: a second arc-shaped slide rail is provided on both sides of the protective outer cover, and the inner cavity of the second arc-shaped slide rail is slidably connected to a second arc-shaped slider fixedly matched with the main platform, and an arc-shaped slide groove is provided on the upper and lower sides of the sliding frame, and the inner cavity of the arc-shaped slide groove is slidably connected to a arc-shaped slide frame fixedly matched with the main platform.

[0018] Preferably: winches are fixedly connected to 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 around the winch, and the end of the thick steel wire rope away from the winch is transmission-connected to a load-bearing pulley fixedly matched with the top of the frame, and the top of the sliding frame is fixedly connected to a connecting piece fixedly matched with the thick steel wire rope.

[0019] The lifting platform for welding and repairing a pile-driving ship of the present invention has the following advantages:

[0020] 1. A lifting platform for welding and repairing a pile-driving ship. During the welding and repairing of the pile-driving ship, the winch, thick steel wire rope, load-bearing pulley and connecting parts first drive the sliding frame and the main platform on both sides of the frame track to achieve the lifting effect. After the two sets of main platforms arrive at the welding and repairing position of the pile-driving ship, the servo motor first provides a unified driving source to save the driving power cost, and the three-stage electric push rod switches and adjusts the position stroke of the driving circular gear back and forth, and also adjusts the clamping stroke between the locking seat and the locking head to be in place. After the servo motor drives the locking seat and the locking head clamped in place on the driving circular gear to rotate, the driving bevel gear and the driven bevel gear on the rotating rod drive the two-way lead screw to rotate accordingly, and the two-way lead screw realizes the expansion effect of the two sets of auxiliary platforms through the supporting arms on the two sets of lead screw sleeves, expands the operating space and operating area of ​​the two sets of main platforms, and is conducive to welding workers to perform welding and repair on large-area damaged areas on the pile-driving ship.

[0021] 2. This kind of lifting platform for welding and maintenance of pile-driving ships, then, two sets of fixed heads play a role of fixing and pulling two thin steel wire ropes, forcing the winding wheels that follow the two sets of auxiliary platforms to rotate, and the two sets of winding wheels drive the two rotating columns to rotate in the rotating sleeves, and the two rotating columns in the rotating state drive the two sets of revolving platforms and extension platforms to the inside to reach the side of the two sets of auxiliary platforms that are extended to the position, further expanding the operating space and operating area of ​​the two sets of main platforms. At the same time, because the two sets of extension platforms adopt the corner extension design, the welding position of the welder can also be changed. After the two sets of rotating platforms and extension platforms are pulled into place, the two sets of first circuit breakers, the first electromagnets and the first limiting magnets first perform electromagnetic adsorption and positioning processing on the two sets of rotating platforms and extension platforms and the two sets of main platforms to avoid the dangerous situation of separation between the two sets of rotating platforms and extension platforms and the two sets of main platforms, thereby improving their safety performance. In addition, the two sets of articulated seats and reset springs play the role of elastic buffering and pullback reset between the two sets of rotating platforms and extension platforms and the two sets of main platforms, further facilitating welding workers to carry out welding maintenance work on large-area damaged areas on the piling ship.

[0022] 3. A lifting platform for welding and maintenance of a pile-driving ship. Then, according to the needs of the welding and maintenance position of the pile-driving ship, when the frame is tilted at an angle following the welding and maintenance position of the pile-driving ship, the annular slide rail and the supporting slider first play a role of rotational support for the double-sided gear ring, and the meshing stroke of the driving circular gear and the double-sided gear ring is switched and adjusted by the three-stage electric push rod. Then, the servo motor drives the double-sided gear ring to rotate according to the tilting direction through the driving circular gear that is meshed in place. The double-sided gear ring drives the driven circular gear to rotate stably through three sets of transfer circular gears, and then the driven circular gear drives the main platform on the bracket through the rotating shaft to achieve a horizontal rotation and trimming effect, so as to prevent the main platform from tilting with the frame, affecting the welding and maintenance work of the pile-driving ship by the welding workers, and further improving the welding and maintenance efficiency of the pile-driving ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a front view of the initial state of a lifting platform structure for welding and maintenance of a pile-driving ship according to the present invention;

[0025] Figure 2 This is a rear view of the initial state of a lifting platform structure for welding and maintenance of a pile-driving ship according to the present invention;

[0026] Figure 3 This is a working state diagram of a lifting platform structure for welding and maintenance of a pile-driving ship according to the present invention;

[0027] Figure 4 It is a horizontal trimming diagram of the left-inclined frame structure of the present invention;

[0028] Figure 5 It is a horizontal trimming diagram of the frame structure of the present invention tilted right;

[0029] Figure 6 It is a partial rear view of a lifting platform structure for welding and maintenance of a pile-driving ship according to the present invention;

[0030] Figure 7 It is a partial front view of a lifting platform structure for welding and maintenance of a pile-driving ship according to the present invention;

[0031] Figure 8 This is a partial exploded view of a lifting platform structure for welding and repairing a pile-driving ship according to the present invention;

[0032] Fig. 9 A partial cross-sectional view of a lifting platform structure for welding and maintenance of a pile-driving ship according to the present invention;

[0033] Fig.10 It is a structural initial state diagram of the adjustment component and the expansion component of the present invention;

[0034] Fig.11 It is an extended state diagram of the adjustment component and the extension component structure of the present invention;

[0035] Fig.12 It is a partial exploded view of the adjustment component and the expansion component structure of the present invention;

[0036] Fig.13A bottom view of the adjustment assembly and the balance assembly structure of the present invention;

[0037] Fig.14 It is a structural exploded view of the adjustment component and the balancing component of the present invention;

[0038] Fig.15 It is a front view of the main platform, auxiliary platform, protective side cover, pulling assembly and positioning assembly structure of the present invention;

[0039] Fig.16 It is a rear view of the pulling assembly and positioning assembly structure of the present invention;

[0040] Fig.17 It is a rear cross-sectional view of the structure of the sliding frame, the protective outer cover, the protective inner cover, the main platform, the adjustment assembly, the balance assembly and the limiting assembly of the present invention;

[0041] Fig.18 It is a partial side view of the balancing component and the limiting component structure of the present invention;

[0042] Fig.19 It is a partial rear view of the main platform, bracket and limiting assembly structure of the present invention;

[0043] Fig. 20 It is a front exploded view of the sliding frame, the protective outer cover, the protective inner cover and the second limiting magnet structure of the present invention;

[0044] Fig.21 It is a bottom view of the frame, track, sliding frame, winch, thick steel wire rope, load-bearing pulley and connecting member structure of the present invention.

[0045] Explanation of the marks in the figure: 1. frame; 2. track; 3. guide pulley; 4. sliding frame; 5. protective outer cover; 6. protective inner cover; 7. main platform; 8. adjustment component; 81. servo motor; 82. three-stage electric push rod; 83. driving circular gear; 84. locking seat; 85. locking head; 86. rotating rod; 9. extension component; 91. driving bevel gear; 92. driven bevel gear; 93. two-way screw rod; 94. screw rod sleeve; 95. support arm; 96. auxiliary platform; 10. protective side cover; 11. pulling component; 111. fixed head; 112. thin steel wire rope; 113. winding wheel; 114. rotating column; 115. rotating sleeve; 116. rotating platform; 117. extension platform; 12. positioning component; 121. first circuit breaker; 122. first electromagnet; 123. first limit magnet; 124. articulated seat; 1 25. reset spring; 13. balance assembly; 131. annular slide rail; 132. support slider; 133. double-sided gear ring; 134. transfer circular gear; 135. driven circular gear; 136. rotating shaft; 137. bracket; 14. limiting assembly; 141. second circuit breaker; 142. second electromagnet; 143. second limiting magnet; 144. ratchet; 145. ratchet pawl; 146. limiting spring; 147. Reset lever; 148. Reserved window; 15. Hidden cavity; 16. Protective net; 17. Slide; 18. Light 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 slide; 26. Winch; 27. Thick steel wire rope; 28. Load-bearing pulley; 29. ​​Connector. DETAILED DESCRIPTION

[0046] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0047] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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 cannot be understood as a limitation on the embodiments of the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0050] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0051] like Figure 1-Figure 21 As shown, a lifting platform for welding and maintenance of a pile-driving ship of the present invention comprises a frame 1, both sides of the frame 1 are fixedly connected with tracks 2, the frame 1 in the present application is in a reduced state, and the inner cavity of the track 2 is slidably connected with a guide pulley 3, the outer side of the guide pulley 3 is fixedly connected with a sliding frame 4, and the outer side of the sliding frame 4 is fixedly connected with a protective outer cover 5, the inner side of the sliding frame 4 is fixedly connected with a protective inner cover 6, a main platform 7 is provided on one side of the sliding frame 4 close to the protective outer cover 5, and a single door that moves back and forth with the auxiliary platform 96 and the revolving platform 116 is hinged on one side of the main platform 7 through a hinge;

[0052] A winch 26 is fixedly connected to both the upper and lower sides of the bottom of the inner cavity of the frame 1, and a driving motor is fixedly connected to one side of the winch 26. A thick steel wire rope 27 is wound around the winch 26, and one end of the thick steel wire rope 27 away from the winch 26 is transmission-connected to a load-bearing pulley 28 fixedly matched with the top of the frame 1. A connecting piece 29 fixedly matched with the thick steel wire rope 27 is fixedly connected to the top of the sliding frame 4. Two sets of driving motors provide forward and reverse driving sources for the winch 26, and then the two sets of winches 26 are guided by two thick steel wire ropes 27 and the two sets of connecting pieces 29 are used to achieve a smooth lifting effect on the main platforms 7 on the two sets of sliding frames 4.

[0053] The bottom of the sliding frame 4 is provided with an adjustment component 8 used in conjunction with the main platform 7, and expansion components 9 are provided on both sides of the main platform 7 to expand the operation space and operation area of ​​the two groups of main platforms 7, and a balancing component 13 used in conjunction with the main platform 7 is provided in the protective outer cover 5. According to the needs of the welding and maintenance position of the pile driving ship, during the period when the frame 1 follows the welding and maintenance position of the pile driving ship and tilts at an angle, the main platform 7 is horizontally rotated and trimmed to prevent the main platform 7 from tilting with the frame 1, affecting the welding and maintenance work of the pile driving ship by the welding workers, and improving the welding and maintenance efficiency of the pile driving ship. A protective side cover 10 is provided on the side of the expansion component 9 away from the main platform 7, and a pulling component 11 is provided on the protective side cover 10. A positioning component 12 used in conjunction with the main platform 7 is provided on one side of the pulling component 11, further expanding the operation space and operation area of ​​the two groups of main platforms 7, which is beneficial for welding workers to perform welding and maintenance work on large-area damaged areas on the pile driving ship.

[0054] like Figure 10-Figure 16 As shown, 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 driving source, saving the driving power cost, 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 with a driving circular gear 83 used in conjunction with the protective outer cover 5, the three-stage electric push rod 82 switches and adjusts the position stroke of the driving circular gear 83 back and forth, and a locking seat 84 is fixedly connected at the center of the outer side of the driving circular gear 83, and a locking head 85 that is engaged with the locking seat 84 is provided on one side of the main platform 7 close to the driving circular gear 83, and then the engaging stroke between the locking seat 84 and the locking head 85 is adjusted into place through the driving circular gear 83, and a rotating rod 86 that is rotatably matched with the main platform 7 is fixedly connected to the outer side of the locking head 85, and the rotating rod 86 is driven to rotate by the servo motor 81 through the locking seat 84 and the locking head 85 that are engaged in place on the driving circular gear 83;

[0055] The expansion component 9 includes a driving bevel gear 91 fixed to the outside of the rotating rod 86, and the outside of the driving bevel gear 91 is meshed with a driven bevel gear 92, and the inner cavity of the driven bevel gear 92 is fixedly connected with a bidirectional screw rod 93 that rotates with the bottom of the inner cavity of the main platform 7, and the driving bevel gear 91 and the driven bevel gear 92 on the rotating rod 86 drive the bidirectional screw rod 93 to rotate accordingly, and both sides of the bidirectional screw rod 93 are threadedly connected with screw rod sleeves 94, both sides of the screw rod sleeves 94 are fixedly connected with support arms 95, and the bottom of the support arms 95 is fixedly connected with a sub-platform 96 that slides with the main platform 7, one corner of one group of sub-platforms 96 is fixedly connected to the protective side cover 10 through a mounting piece, and the bidirectional screw rod 93 achieves the expansion effect of two groups of sub-platforms 96 through the support arms 95 on the two groups of screw rod sleeves 94, thereby expanding the operating space and operating area of ​​the two groups of main platforms 7, which is beneficial for welding workers to perform welding repairs on large-area damaged areas on the pile-driving ship;

[0056] Hidden cavities 15 that slide with the sub-platform 96 are provided on both sides of the inner cavity of the main platform 7, which play a role in hiding the sub-platform 96 in the initial state, and also play a role in sliding support for the sub-platform 96 in the expanded state. In addition, both sides of the sub-platform 96 close to the sliding frame 4 are fixedly connected with protective nets 16 that are fixedly matched with the main platform 7, which are stretched as the sub-platform 96 expands, and play a role in blocking the inner area of ​​the sub-platform 96 and the main platform 7, thereby improving the safety performance. The upper and lower sides of the main platform 7 away from the sliding frame 4 are fixedly connected with slide cylinders 17, and both sides of the inner cavity of the slide cylinder 17 are slidably connected with light rods 18 that are fixedly matched with the sub-platform 96, which play a role in sliding support for the sub-platform 96 in the expanded state, and also play a role in blocking the outer area of ​​the sub-platform 96 and the main platform 7, thereby further improving the overall safety performance.

[0057] The pulling 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 sets of fixed heads 111 play a role of fixing and pulling the two thin steel wire ropes 112. The ends of the thin steel wire ropes 112 away from the fixed heads 111 are wound with a winding wheel 113. The other ends of the two thin steel wire ropes 112 force the winding wheels 113 that follow the two sets of auxiliary platforms 96 to rotate.

[0058] The inner cavity of the winding wheel 113 is fixedly connected with a rotating column 114 that rotates with the protective side cover 10, and the surface of the rotating column 114 is rotatably connected with a rotating sleeve 115 that is fixedly matched with one group of auxiliary platforms 96 from top to bottom. The two groups of winding wheels 113 drive the two rotating columns 114 to rotate in the rotating sleeve 115, and the outer side of the rotating column 114 is fixedly connected with a rotating platform 116 used in conjunction with the main platform 7 through a reinforcement. The other side of the rotating platform 116 is fixedly connected with an extension platform 117. The two rotating columns 114 in the rotating state drive the two groups of rotating platforms 116 and the extension platform 117 to the inside to reach the side of the two groups of auxiliary platforms 96 that are extended and in place, further expanding the operating space and operating area of ​​the two groups of main platforms 7. At the same time, since the two groups of extension platforms 117 adopt a corner extension design, the welding position of the welder can also be changed;

[0059] The positioning assembly 12 includes a first circuit breaker 121 fixed on one side of the rotating platform 116, and a first electromagnet 122 used in conjunction with the first circuit breaker 121 is embedded on the other side of the rotating platform 116, and a first limiting magnet 123 used in conjunction with the first electromagnet 122 is embedded on the side of the main platform 7 close to the sliding frame 4. After the two groups of rotating platforms 116 and the extension platform 117 are pulled into place, the two groups of first circuit breakers 121, the first electromagnet 122 and the first limiting magnet 123 first perform electromagnetic adsorption positioning processing on the two groups of rotating platforms 116 and the extension platform 117 and the two groups of main platforms 7, so as to avoid the two groups of rotating platforms 116 and the extension platform 117 from being out of danger from the two groups of main platforms 7, thereby improving their safety performance;

[0060] An articulated seat 124 is fixedly connected to the side facing the main platform 7 and the rotating platform 116, and a reset spring 125 for stretching and resetting the rotating platform 116 and the extension platform 117 is fixedly connected to the inner side of the articulated seat 124. The two groups of articulated seats 124 and the reset spring 125 play a role of elastic buffering and pullback and resetting between the two groups of rotating platforms 116 and the extension platform 117 and the two groups of main platforms 7, which further facilitates welding workers to carry out welding maintenance work on large-area damaged areas on the piling ship.

[0061] The balancing assembly 13 includes an annular slide rail 131 disposed on one side of the slide frame 4 close to the inner cavity of the protective cover 5, and the annular slide rail 131 is slidably connected with a support slider 132 on all sides, and the outer side of the support slider 132 is fixedly connected with a double-sided gear ring 133 meshing with the driving circular gear 83. The annular slide rail 131 and the support slider 132 first play a role of rotational support for the double-sided gear ring 133, and the meshing stroke of the driving circular gear 83 and the double-sided gear ring 133 is switched and adjusted by the three-stage electric push rod 82, and then the servo motor 81 drives the double-sided gear ring 133 to rotate according to the tilting direction through the driving circular gear 83 that is meshed in place;

[0062] The inner cavity of the double-sided gear ring 133 is meshed with a transfer circular gear 134 that rotates with the protective outer cover 5. The inner side of the transfer circular gear 134 is meshed with a driven circular gear 135. The double-sided gear ring 133 drives the driven circular gear 135 to rotate stably through three groups of transfer circular gears 134. The inner cavity of the driven circular gear 135 is fixedly connected with a rotating shaft 136 that rotates with the sliding frame 4, the protective outer cover 5 and the protective inner cover 6. The outer side of the rotating shaft 136 is fixedly connected with a bracket 137 that is fixedly matched with the main platform 7. The driven circular gear 135 drives the main platform 7 on the bracket 137 through the rotating shaft 136 to achieve a horizontal rotation and trimming effect, so as to prevent the main platform 7 from tilting with the frame 1, affecting the welding maintenance work of the welding workers on the pile driving ship, and further improving the welding maintenance efficiency of the pile driving ship.

[0063] A balance sensor 19 is fixedly connected to the top of the outer side of the main platform 7 to monitor the current horizontal state of the main platform 7 in real time, which is beneficial to the subsequent horizontal trimming 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 fixedly matched with the bracket 137, which plays a role of sliding support for the bracket 137 and improves the rotation stability of the bracket 137. A scale groove is provided on one side of the protective cover 5 close to the first arc-shaped slide rail 20, which is convenient for reading the rotation angle of the bracket 137;

[0064] Second arc-shaped slide rails 22 are provided on both sides of the protective outer cover 5, and the inner cavity of the second arc-shaped slide rails 22 is slidably connected to the second arc-shaped slider 23 fixedly matched with the main platform 7. Arc-shaped slide grooves 24 are provided on the upper and lower sides of the sliding frame 4, and the inner cavity of the arc-shaped slide grooves 24 is slidably connected to the arc-shaped slide frame 25 fixedly matched with the main platform 7. During the horizontal trimming of the main platform 7, a double sliding limit function is played between the main platform 7 and the protective outer cover 5 and the sliding frame 4, thereby improving the stability of the horizontal trimming of the main platform 7, and also improving the safety performance of the main platform 7 during the horizontal trimming.

[0065] like Figure 17-Figure 19As shown, when the frame 1 is tilted at an angle following the welding maintenance position of the pile-driving ship and the main platform 7 is horizontally trimmed by the balancing component 13, the initial state and the horizontal trimming state of the main platform 7 cannot be restricted, which reduces the safety of the main platform 7 during the horizontal trimming. The balancing component 13 is provided with a restriction component 14 used in conjunction with the main platform 7, and the main platform 7 is fixedly connected to the second circuit breaker 141 on all four sides near the outer side of the sliding frame 4, and the main platform 7 is fixedly connected to the second electromagnet 142 used in conjunction with the second circuit breaker 141 on all four sides near the inner side of the sliding frame 4, and the sliding frame 4 is fixedly connected to the second limiting magnet 143 used in conjunction with the second electromagnet 142 on all four sides near the protective cover 5. The electromagnetic adsorption positioning process is performed between the main platform 7 and the sliding frame 4 in the initial state by four groups of the second circuit breakers 141, the second electromagnet 142 and the second limiting magnet 143 to prevent accidental rotation between the main platform 7 and the sliding frame 4;

[0066] A ratchet 144 is fixedly connected to the side of the rotating shaft 136 close to the protective inner cover 6, and a pawl 145 that rotates with the protective inner cover 6 is clamped on one side of the ratchet 144, and a limit spring 146 that is fixedly matched with the protective inner cover 6 is fixedly connected to the side of the pawl 145 away from the ratchet 144, and a reset lever 147 is fixedly connected to the side of the pawl 145 away from the limit spring 146. The tops of the sliding frame 4 and the protective inner cover 6 are both provided with reserved windows that are matched with the reset lever 147. 148, the ratchet 144, the pawl 145 and the limit spring 146 play a reverse limiting role on the rotating shaft 136 during the horizontal trimming period to prevent the main platform 7 on the bracket 137 from rotating rapidly, which is beneficial to the slow and orderly horizontal trimming work of the main platform 7. The reset lever 147 is moved through the reserved window 148 to release the reverse restriction on the ratchet 144, which is beneficial to the horizontal trimming work of the main platform 7 in the other direction and improves the safety performance of the main platform 7 during the horizontal trimming.

[0067] The working principle of a lifting platform for welding and maintenance of a pile-driving ship is as follows: first, two welding teams open the single doors on the two main platforms 7, and bring two welding and maintenance tools into the two platforms. After closing the two single doors, two driving motors are controlled to drive two winches 26 to rotate. The two winches 26 synchronously reel in two thick steel wire ropes 27. Two load-bearing pulleys 28 support and transmit the two thick steel wire ropes 27, and two guide pulleys 3 limit the sliding of the two sliding frames 4 and the track 2. The two shortened thick steel wire ropes 27 drive the two sliding frames 4 to slide upward on the tracks 2 on both sides of the frame 1 through two connecting pieces 29, until the two sliding frames 4 drive the welding workers on the two main platforms 7 to reach the welding and maintenance area of ​​the pile-driving ship.

[0068] After the two sets of main platforms 7 rise to their positions, the two sets of three-stage electric push rods 82 are first controlled to open synchronously and drive the locking seats 84 on the two sets of driving circular gears 83 to move outwards, and then clamp onto the two sets of locking heads 85. At this time, the two sets of driving circular gears 83 and the double-sided gear rings 133 are in a disengaged state, and then the two sets of servo motors 81 are controlled to open and drive the two sets of driving circular gears 83 to rotate synchronously. The two sets of driving circular gears 83 drive the two rotating rods 86 to rotate accordingly through the two sets of locking seats 84 and locking heads 85 that are clamped in place. While the two rotating rods 86 drive the two sets of driving bevel gears 91 to rotate, the two sets of driving bevel gears 91 drive the two-way screw rods 93 on the two sets of driven bevel gears 92 to rotate forwardly, and the two two-way screw rods 93 drive the two sets of screw rod sleeves 94 to move outward synchronously accordingly.

[0069] The two sets of screw rod sleeves 94 drive the auxiliary platforms 96 on the two sets of supporting arms 95 to expand outward synchronously, and at the same time, the two sets of auxiliary platforms 96 slide outward in the hidden cavity 15 area in the two sets of main platforms 7, and the two sets of auxiliary platforms 96 in the extended state also drive the two sets of protective nets 16 to stretch outward to block the inner area of ​​the two sets of auxiliary platforms 96 and the main platform 7, and at the same time drive the two sets of light rods 18 to slide outward in the slide cylinder 17 to block the outer area of ​​the two sets of auxiliary platforms 96 and the main platform 7 until the two sets of auxiliary platforms 96 expand outward to the predetermined position and stop. At this time, the two sets of servo motors 81 are controlled to pause first, 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 driving circular gears 83 to move inward and disengage from the clamping position of the two sets of locking heads 85. At this time, the two sets of driving circular gears 83 are located at the initial position between the two sets of locking heads 85 and the double-sided gear ring 133;

[0070] During the outward expansion of the auxiliary platforms 96 on the two groups of main platforms 7, one of the auxiliary platforms 96 in the outward expansion state drives the thin steel wire rope 112 to be pulled outward. Since the fixed 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 accordingly. The winding wheel 113 drives the rotating column 114 to rotate in the rotating sleeve 115 on the outside of one of the auxiliary platforms 96. The rotating column 114 drives the rotating platform 116 and the extension platform 117 on the two groups of main platforms 7 through the reinforcement member, and follows the auxiliary platform 96 in the expansion state to be pulled inward synchronously until the rotating platform 116 and the extension platform 117 are pulled to the outside of the group of auxiliary platforms 96 that have been expanded, and the rotating platform 116 and the group of auxiliary platforms 96 are closed, and at the same time, the two groups of first electromagnets 122 are fitted with the first limiting magnet 123;

[0071] Immediately control the two groups of first circuit breakers 121 to energize and open the two groups of first electromagnets 122, and then the two groups of first electromagnets 122 electromagnetically absorb the first limiting magnets 123 in the fitted state, and electromagnetically absorb and position the auxiliary platform 96, the rotating platform 116 and the extension platform 117 that are extended and pulled into place. At the same time, the two groups of rotating platforms 116 pulled inward drive the two reset springs 125 to stretch synchronously through the two groups of hinge seats 124. After the two groups of main platforms 7, auxiliary platforms 96, rotating platforms 116 and extension platforms 117 are all in place and connected as one, the two groups of welding workers can open the one-way door and walk on the two groups of main platforms 7, auxiliary platforms 96, rotating platforms 116 and extension platforms 117 that are connected as one. Since the two groups of extension platforms 117 adopt a 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 expanded to the limit, which is conducive to the two groups of welding workers to perform welding maintenance operations on two areas of the pile driving ship;

[0072] According to the needs of the welding and maintenance position of the pile-driving ship, during the period when the frame 1 follows the welding and maintenance position of the pile-driving ship to tilt at an angle, the two sets of sliding frames 4 drive the two sets of main platforms 7 to tilt along with the frame 1, and the two groups of welding workers also step on the tilted two sets of main platforms 7, which is not conducive to the work. In order to facilitate the welding workers to carry out welding and maintenance work, the two sets of three-stage electric push rods 82 are first controlled to start synchronously and drive the two sets of driving circular 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 driving circular gears 83 are in a disengaged state from the two sets of locking heads 85. The two sets of annular slide rails 131 and the supporting sliders 132 provide rotation support for the two sets of double-sided gear rings 133, and then the two sets of servo motors 81 are controlled to start again and drive the two sets of double-sided gear rings 133 to rotate through the two sets of driving circular gears 83 that are meshed in place. The two sets of double-sided gear rings 133 then drive the driven circular gears 135 to rotate accordingly through the transfer circular gears 134.

[0073] First, the two groups of first arc slide rails 20 and the first arc slide block 21 play the role of sliding limit for the two groups of brackets 137 and the protective cover 5, and then the two groups of driven circular gears 135 drive the two groups of brackets 137 to rotate through the rotating shaft 136, and then the two groups of second arc slide rails 22 and the second arc slide block 23 play the role of sliding support for the left and right sides of the main platform 7 and the protective cover 5, and the two groups of arc slide grooves 24 and the arc slide 25 play the role of sliding support for the upper and lower sides of the main platform 7 and the sliding frame 4. The two groups of brackets 137 drive the two groups of main platforms 7 to rotate and trim to a horizontal state, and the two groups of balance sensors 19 detect the two groups of main platforms 7 trimmed to a horizontal state to ensure that the two groups of main platforms 7 are trimmed to the right level. At this time, the two groups of welding workers can walk normally on the two groups of main platforms 7 in a horizontal state, and can also perform overall horizontal trimming operations on the two groups of main platforms 7 and the two groups of pre-adjusted auxiliary platforms 96, the rotating platform 116 and the extension platform 117;

[0074] Before the two sets of main platforms 7 are horizontally trimmed, the two sets of second circuit breakers 141 are controlled to cut off the power to the second electromagnet 142 in advance, so that the second electromagnet 142 contacts the electromagnetic adsorption limit of the second limit magnet 143, and the brackets 137 on the two rotating shafts 136 drive the two sets of main platforms 7 to rotate and trim to a horizontal state, and the two sets of ratchet wheels 144 also rotate synchronously with the two rotating shafts 136, and the two sets of ratchet wheels 144 in the rotating state drive the two sets of pawls 145 to jump teeth on their teeth, and the two limit springs 146 perform elastic limit processing on the two sets of pawls 145 in the tooth-jumping action, and provide reverse restriction measures for the two sets of ratchet wheels 144 and the rotating shaft 136, so that the two sets of main platforms 7 can perform stable and orderly horizontal trimming work. If it is necessary to trim the main platform 7 in the opposite direction, the two groups of welding workers pass through the two sets of reserved windows 148 and push the two reset levers 147 downward;

[0075] After the two reset levers 147 are pushed down, the two reset levers 147 drive the two groups of pawls 145 to disengage the teeth of the ratchet wheel 144 and compress the two limit springs 146, thereby releasing the reverse restriction measures of the two rotating shafts 136. Combined with the two groups of servo motors 81, the two groups of driving circular gears 83 and the double-sided gear rings 133 are meshed in place to further provide locking measures for the two groups of main platforms 7 after horizontal trimming, thereby ensuring the stability and safety of the two groups of main platforms 7 before and after horizontal trimming. Similarly, the two groups of servo motors 81 are turned on in reverse and drive the brackets 137 on the two rotating shafts 136 to rotate in reverse through the two groups of driving circular gears 83, the two groups of double-sided gear rings 133, the transfer circular gear 134 and the driven circular gear 135 in turn. The two groups of brackets 137 rotating in reverse drive the two groups of main platforms 7 to perform horizontal trimming operation in the other direction until the two groups of main platforms 7 are horizontally trimmed in place in the forward or reverse direction.

[0076] 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, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0077] The power supply circuits of the servo motor 81 , the three-stage electric push rod 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 herein.

[0078] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A lifting platform for welding and repairing a pile-driving ship, comprising a frame (1), tracks (2) being fixedly connected to both sides of the frame (1), a guide pulley (3) being slidably connected to the inner cavity of the track (2), a sliding frame (4) being fixedly connected to the outer side of the guide pulley (3), a protective outer cover (5) being fixedly connected to the outer side of the sliding frame (4), and a protective inner cover (6) being fixedly connected to the inner side of the sliding frame (4); A main platform (7) is arranged on one side of the sliding frame (4) close to the protective cover (5), and an adjustment component (8) for use with the main platform (7) is arranged at the bottom of the sliding frame (4), the adjustment component (8) comprising 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 driving circular gear (83) for use with the protective cover (5), and a locking seat (84) is fixedly connected at the center of the outer side of the driving circular gear (83), a locking head (85) engaged with the locking seat (84) is arranged on one side of the main platform (7) close to the driving circular gear (83), and a rotating rod (86) for rotationally cooperating with the main platform (7) is fixedly connected to the outer side of the locking head (85), An extension component (9) is provided on both sides of the main platform (7), the extension component (9) comprising a driving bevel gear (91) fixed on the outside of the rotating rod (86), and a driven bevel gear (92) is meshed on the outside of the driving bevel gear (91), a bidirectional screw (93) that is rotatably matched with the bottom of the inner cavity of the main platform (7) is fixedly connected to the inner cavity of the driven bevel gear (92), and screw sleeves (94) are threadedly connected to both sides of the bidirectional screw (93), and support arms (95) are fixedly connected to both sides of the screw sleeve (94), and a sub-platform (96) that is slidably matched with the main platform (7) is fixedly connected to the bottom of the support arm (95), one corner of one group of sub-platforms (96) is fixedly connected to the protective side cover (10) through a mounting member, and a balancing component (13) that is used in conjunction with the main platform (7) is provided in the protective outer cover (5); A protective side cover (10) is provided on the side of the extension component (9) away from the main platform (7), and a pulling component (11) is provided on the protective side cover (10), the pulling component (11) comprising 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), and a winding wheel (113) is wound around one end of the thin steel wire rope (112) away from the fixed head (111), and the inner cavity of the winding wheel (113) is fixedly connected to the protective The side cover (10) is rotatably matched with a rotating column (114), and the surface of the rotating column (114) is rotatably connected to a rotating sleeve (115) fixedly matched with one of the sets of auxiliary platforms (96) in sequence from top to bottom, and the outer side of the rotating column (114) is fixedly connected to a rotating platform (116) used in conjunction with the main platform (7) through a reinforcing member, and the other side of the rotating platform (116) is fixedly connected to an extension platform (117), and a positioning component (12) used in conjunction with the main platform (7) is provided on one side of the pulling component (11).

2. A lifting platform for welding and maintenance of a pile-driving ship according to claim 1, characterized in that: The positioning assembly (12) comprises a first circuit breaker (121) fixed to one side of a rotating platform (116), and a first electromagnet (122) used in conjunction with the first circuit breaker (121) is embedded on the other side of the rotating 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) close to the sliding frame (4), and a hinge seat (124) is fixedly connected to the side of the main platform (7) and the rotating platform (116) facing each other, and a reset spring (125) used 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).

3. A lifting platform for welding and maintenance of a pile-driving ship according to claim 2, characterized in that: The balancing assembly (13) comprises an annular slide rail (131) provided on one side of the sliding frame (4) close to the inner cavity of the protective outer cover (5), and the annular slide rail (131) is slidably connected to a supporting slider (132) on all sides, the outer side of the supporting slider (132) is fixedly connected to a double-sided gear ring (133) meshing with a driving circular gear (83), and the inner cavity of the double-sided gear ring (133) is meshed with a transfer circular gear (134) rotatably matched with the protective outer cover (5) on all sides, the inner side of the transfer circular gear (134) is meshed with a driven circular gear (135), and the inner cavity of the driven circular gear (135) is fixedly connected to a rotating shaft (136) rotatably matched with the sliding frame (4), the protective outer cover (5) and the protective inner cover (6), and the outer side of the rotating shaft (136) is fixedly connected to a bracket (137) fixedly matched with the main platform (7).

4. A lifting platform for welding and maintenance of a pile-driving ship according to claim 3, characterized in that: Hidden cavities (15) that are slidably matched with the auxiliary platform (96) are provided on both sides of the inner cavity of the main platform (7), and protective nets (16) that are fixedly matched with the main platform (7) are fixedly connected on both sides of the auxiliary platform (96) close to the sliding frame (4). A slide cylinder (17) is fixedly connected on both upper and lower sides of the main platform (7) away from the sliding frame (4), and a light rod (18) that is fixedly matched with the auxiliary platform (96) is slidably connected on both sides of the inner cavity of the slide cylinder (17).

5. The lifting platform for welding and maintenance of a pile-driving ship according to claim 4, 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) fixedly matched with the bracket (137), and a scale groove is provided on one side of the protective cover (5) close to the first arc-shaped slide rail (20).

6. A lifting platform for welding and maintenance of a pile-driving ship according to claim 5, characterized in that: The protective outer cover (5) is provided with 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 slide block (23) fixedly matched with the main platform (7). The upper and lower sides of the sliding frame (4) are provided with an arc-shaped slide groove (24), and the inner cavity of the arc-shaped slide groove (24) is slidably connected to a arc-shaped slide frame (25) fixedly matched with the main platform (7).

7. A lifting platform for welding and maintenance of a pile-driving ship according to claim 6, characterized in that: A winch (26) is fixedly connected to both 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 around the winch (26), and one end of the thick steel wire rope (27) away from the winch (26) is drivingly connected to a load-bearing pulley (28) fixedly matched with the top of the frame (1), and a connecting piece (29) fixedly matched with the thick steel wire rope (27) is fixedly connected to the top of the sliding frame (4).

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