Marine crane winch arrangement structure

Abstract

The invention discloses a winch arrangement structure of a marine crane, and belongs to the technical field of marine equipment. The structure comprises a crane tower body frame formed by welding side plates and a bottom plate and a cover plate of the crane tower body frame. The innovation point is that a winch wall frame fixedly welded with the frame is integrally arranged in the tower body frame, and the wall frame forms a plurality of mounting spaces through transverse wall frames and vertical wall frames and is used for intensively mounting winch components such as amplitude variation, lifting and auxiliary hooks and a hydraulic pump station. And a winch rope is led out through guide holes in the tower body and the cover plate. The winch and the pump station are integrated in the rigid tower body frame, so that the high compactness of equipment layout is realized, and the space is greatly saved; the integrated welding wall frame structure provides extremely high rigidity and stability, and effectively resists operation load; meanwhile, daily maintenance and overhaul of the equipment are greatly facilitated through centralized arrangement and the access door and the maintenance area, the equipment operation environment is improved, and the comprehensive performance is remarkably superior to that of traditional distributed arrangement.

Description

Technical Field

[0001] This invention relates to the field of marine equipment technology, and more specifically to a marine crane winch arrangement structure. Background Technology

[0002] Marine cranes are key equipment for cargo lifting, equipment transfer, and other operations on ships. As the core actuator of the crane, the arrangement of the winch directly affects the overall structure, performance, ease of maintenance, and utilization efficiency of the ship's deck space. Traditional marine crane winch arrangements typically involve dispersing each winch (such as luffing winches and hoisting winches) on the crane's slewing platform or boom, or using independent, distributed bases. This arrangement has several drawbacks: 1. Dispersed layout occupies a large amount of valuable deck area and space above cranes, which is not conducive to the optimization of ship deck layout, especially on work ships with compact space, this problem is particularly prominent.

[0003] 2. Each winch requires an independent and robust support structure, resulting in overall structural redundancy and increased weight. This not only increases manufacturing costs but also raises the ship's load and fuel consumption.

[0004] 3. Exposed winches and hydraulic / electrical components are susceptible to corrosion from salt spray, humid air, and rain in the marine environment, which reduces the service life and reliability of the equipment.

[0005] Therefore, there is an urgent need in this field for a marine crane winch arrangement structure that can integrate winches, save space, enhance structural rigidity, and facilitate maintenance. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects existing in the prior art and provide a marine crane winch arrangement structure.

[0007] To achieve the above object, the technical solution of the present invention is to design a winch layout structure for a marine crane, including a crane tower frame and a cover plate. The cover plate is installed above the tower frame through a connection component. The tower frame is welded by side plates and a bottom plate around, and has an accommodation space inside. It further includes a winch wall frame. The winch wall frame is located inside the tower frame and is welded and fixed to the side plates and the bottom plate of the tower. The winch wall frame includes at least one horizontal wall frame and at least one vertical wall frame. The horizontal wall frame and the vertical wall frame together form multiple installation spaces for installing winch components. Guide holes for winch ropes to pass through are opened on the tower frame and the cover plate. A pump station is also provided inside the tower frame. When the winch is installed below the pump station, the guide holes are generally opened on the horizontal wall frame where the pump station is located. At this time, the pump station needs to be避让向外 to prevent affecting the normal passage of the ropes. In addition, a baffle can be provided on the horizontal wall frame where the pump station is located to separate the pump station from the guide hole to prevent damage to the pump station during the winding and unwinding of the ropes. In addition, in order to better prevent the ropes of the three winches from winding around each other, partitions or guide cylinders can be provided between the guide holes to isolate the ropes of the three winches from each other. If the internal space of the tower frame is insufficient or the structure is limited, the guide hole positions can also be opened on the vertical wall frame, and the ropes are guided out through a pulley block. A bushing can also be installed in the guide hole to make the ropes pass through the guide hole more smoothly. The horizontal wall frame and the vertical wall frame are not completely flat plates. On the premise of meeting the support strength, multiple windows for maintenance and ventilation are provided on them. In order to better facilitate the heat dissipation of the pump station, there should be a certain distance between the pump station and the horizontal wall frame, the vertical wall frame, and the side plates of the tower.

[0008] Optionally, the winch components are two of the luffing winch, the hoisting winch, and the auxiliary hook winch, and the two winches are installed horizontally side by side.

[0009] Optionally, the winch components include a luffing winch, a hoisting winch, and an auxiliary hook winch. The luffing winch, the hoisting winch, and the auxiliary hook winch are arranged in a "pin" shape or an inverted "pin" shape. The "pin" shape or inverted "pin" shape arrangement can utilize the internal vertical space of the tower in the optimal way. And in the "pin" shape or inverted "pin" shape arrangement, the drums of the three winches are offset from each other. Together with the guide holes, it can effectively avoid the ropes of the three winches from winding around each other.

[0010] Optionally, the winch wall frame includes symmetrically arranged first and second vertical wall frames, and a first horizontal wall frame located above the first and second vertical wall frames. The pump station is installed on the bottom plate and is located between the first and second vertical wall frames. Any two winches are installed above the first horizontal wall frame.

[0011] Optionally, the winch wall frame includes a third vertical wall frame and a third horizontal wall frame that is perpendicular to and above the third vertical wall frame. Two types of winches are installed on both sides of the third vertical wall frame, and the pump station is installed above the third horizontal wall frame.

[0012] Optionally, the winch wall frame includes a fourth vertical wall frame and a fifth vertical wall frame symmetrically arranged, and a fourth horizontal wall frame located above the fourth vertical wall frame and the fifth vertical wall frame. A sixth vertical wall frame is arranged above the middle of the fourth horizontal wall frame, and a fifth horizontal wall frame is arranged above the sixth vertical wall frame. The pump station is installed on the base plate and located between the fourth vertical wall frame and the fifth vertical wall frame. Two types of winches are installed above the fourth horizontal wall frame and located on both sides of the sixth vertical wall frame, and another winch is installed above the fifth horizontal wall frame.

[0013] Optionally, the winch wall frame includes a seventh vertical wall frame and a seventh horizontal wall frame that is perpendicular to and above the seventh vertical wall frame. An eighth vertical wall frame and a ninth vertical wall frame are arranged symmetrically on both sides of the seventh horizontal wall frame. An eighth horizontal wall frame is arranged above the eighth vertical wall frame and the ninth vertical wall frame. Two types of winches are installed on both sides of the seventh vertical wall frame, and another winch is installed above the seventh horizontal wall frame and between the eighth vertical wall frame and the ninth vertical wall frame. The pump station is installed above the eighth horizontal wall frame.

[0014] To improve the operating environment of the equipment, multiple ventilation devices and / or cooling devices are provided on the side plate for ventilation and heat dissipation of the equipment within the tower frame.

[0015] For ease of maintenance, the tower frame is placed centered on the left and right sides, forming maintenance and inspection areas for workers to carry out repairs. The rear end is welded to the rear side plate to enhance rigidity. An inspection door opening is provided on the front side plate of the tower frame, and a door is hinged to the inspection door opening to facilitate personnel entry and exit.

[0016] To ensure structural strength and installation accuracy, the weld joints of the transverse wall frame and the base plate and side plate of the tower frame are welded with full penetration bevel welding and local reinforcing ribs are added; the surface of the mounting base of the winch wall frame is precision machined to ensure the flatness and verticality of the drum mounting plane.

[0017] The advantages and beneficial effects of this invention are as follows: 1. By integrating multiple winches and pump stations into a closed tower frame, space utilization is greatly optimized, especially vertical space. This reduces the volume above the crane slewing platform and the deck area occupied, making the overall crane layout more compact, which is particularly suitable for ships with limited space.

[0018] 2. The internal winch wall frame is welded to the tower body frame to form a high-strength and high-rigidity box-shaped support structure. This structure can effectively resist the huge overturning moment and dynamic load generated during hoisting operations, reduce vibration and deformation, and ensure the smooth operation of the winch and the service life of the wire rope.

[0019] 3. The centralized layout makes all the core components (winch, pump station) located in the same area. Maintenance personnel can access all equipment by simply entering the interior of the tower body or through the maintenance areas on both sides, greatly improving the maintenance efficiency. The opened inspection doors and the maintenance areas on both sides provide sufficient operating space, improve the working conditions, and reduce the safety risks. The tower body frame forms a natural "equipment room", providing protection for the internal equipment from the erosion of salt spray and humid air in the marine environment, as well as the scouring of rainwater.

[0020] 4. The present invention provides a variety of winch wall frame layout schemes (such as horizontal arrangement, "pin" shape, etc.), which can flexibly adapt to the different configuration requirements of two or three winches, with strong versatility and meeting the functional requirements of different marine cranes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an external schematic view of the winch layout structure of the present invention; Figure 2 is a schematic internal structure view of the first winch layout of the present invention; Figure 3 is a schematic view of the first winch layout structure of the present invention; Figure 4 is a schematic view of the second winch layout structure of the present invention; Figure 5 is a schematic view of the third winch layout structure of the present invention; Figure 6 is a schematic view of the fourth winch layout structure of the present invention.

[0022] In the figure: 1, tower body frame; 101, side plate; 102, bottom plate; 103, guide hole; 2, cover plate; 3, connection component; 4, winch component; 5, pump station; 611, first vertical wall frame; 612, second vertical wall frame; 613, first horizontal wall frame; 621, third vertical wall frame; 622, third horizontal wall frame; 631, fourth vertical wall frame; 632, fifth vertical wall frame; 633, fourth horizontal wall frame; 634, sixth vertical wall frame; 635, fifth horizontal wall frame; 641, seventh vertical wall frame; 642, seventh horizontal wall frame; 643, eighth vertical wall frame; 644, ninth vertical wall frame; 645, eighth horizontal wall frame; 7, ventilation device; 8, maintenance area; 9, door; 10, reinforcing rib; 11, baffle; 12, partition board. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] according to Figure 1 As shown, the present invention is a winch arrangement structure for a marine crane, including a crane tower frame 1 and a cover plate 2. The cover plate 2 is installed on the tower frame 1 by bolts or connecting components such as double-ended studs 3, or the cover plate 2 can be directly welded to the tower frame 1. The tower frame 1 is welded together from four side plates 101 and a bottom plate 102, and has an internal accommodating space. It also includes a winch wall frame, which is located inside the tower frame 1 and is welded and fixed to the tower side plates 101 and the bottom plate 102. The winch wall frame includes at least one horizontal wall frame and at least one vertical wall frame. The horizontal wall frame and the vertical wall frame together form multiple installation spaces for installing winch components 4. The tower frame 1 and the cover plate 2 are provided with guide holes 103 for the winch rope to pass through. A pump station 5 is also provided inside the tower frame 1. Pump station 5 and winch assembly 4 are the most important components of the crane. They are typically installed externally, which occupies a significant amount of deck space and exposes them to corrosion from salt spray and humid air in the marine environment, as well as erosion from rainwater, reducing the equipment's lifespan and reliability. However, the tower structure of heavy-duty cranes is generally hollow and has a large internal space. Therefore, rationally installing winch assembly 4 and pump station 5 within the tower frame 1 using winch wall brackets effectively reduces the amount of equipment attached to the deck, and the tower itself can also shelter the internal components from wind and rain. The winch wall brackets can be adjusted according to the size of pump station 5 and the number and size of winch assembly 4 to design a structure that perfectly houses pump station 5 and winch assembly 4 within the tower frame 1.

[0025] Example 1: Double winch arrangement (horizontal arrangement) like Figure 2 , Figure 3 As shown, in this embodiment, the winch wall frame consists of a first vertical wall frame 611 and a second vertical wall frame 612 symmetrically welded to the base plate 102, and a first horizontal wall frame 613 bridging and welded between the upper ends of these two vertical wall frames and the side plate 101. Thus, a stable mounting platform is formed above the first horizontal wall frame 613.

[0026] Pump station 5 is directly installed on the base plate 102 of tower frame 1, located between the first vertical wall frame 611 and the second vertical wall frame 612. Two winch assemblies 4 (e.g., a hoisting winch and a luffing winch) are installed side by side in the mounting space above the first transverse wall frame 613. Guide holes 103 are provided in the top plate and cover plate 2 of tower frame 1 and at corresponding positions for the wire ropes of the winches to be led out.

[0027] The tower frame 1 is arranged centered left and right in the design, so that spacious maintenance areas 8 are naturally formed on both sides inside it, facilitating technicians to maintain the pump station 5 and the winches. A hinged door 9 is installed on the front side plate 101, facilitating personnel to enter and exit.

[0028] Embodiment 2: Double winch arrangement (another form) Refer to Figure 4 , the main difference between this embodiment and Embodiment 1 lies in the layout of the winch wall frames. The wall frame consists of a third vertical wall frame 621 and a third horizontal wall frame 622 that is perpendicular to it and welded to its upper end. Two winch assemblies 4 are respectively installed on both sides of the third vertical wall frame 621. The pump station 5 is installed above the third horizontal wall frame 622. This layout also achieves the compact integration of the double winches and the pump station. Guide holes 103 are opened at corresponding positions on the third horizontal wall frame 622 and the cover plate 2 for the wire ropes of the winches to lead out.

[0029] Embodiment 3: Triple winch arrangement (inverted 'pin' shape) As Figure 5 shown, this embodiment is used to install three devices, namely the luffing winch, the hoisting winch, and the auxiliary hook winch. The winch wall frame includes symmetrically arranged fourth vertical wall frames 631 and fifth vertical wall frames 632, and a fourth horizontal wall frame 633 that straddles above them. Above the middle of the fourth horizontal wall frame 633, a sixth vertical wall frame 634 is vertically welded, and the upper end of the sixth vertical wall frame 634 is welded with a fifth horizontal wall frame 635.

[0030] The pump station 5 is installed on the bottom plate 102, located between the fourth vertical wall frame 631 and the fifth vertical wall frame 632. The hoisting winch and the luffing winch are installed horizontally side by side on the fourth horizontal wall frame 633 and are respectively located on both sides of the sixth vertical wall frame 634. The auxiliary hook winch is installed on the higher-positioned fifth horizontal wall frame 635. The three winches are arranged in an inverted 'pin' shape, with a compact structure and a reasonable center of gravity distribution.

[0031] Embodiment 4: Triple winch arrangement ('pin' shape) As Figure 6 shown, this is another triple winch arrangement scheme. The winch wall frame includes a seventh vertical wall frame 641 and a seventh horizontal wall frame 642 that is perpendicular to it and above it. At both ends of the seventh horizontal wall frame 642, eighth vertical wall frames 643 and ninth vertical wall frames 644 are vertically and symmetrically welded, and the upper ends of these two wall frames are connected by an eighth horizontal wall frame 645.

[0032] Two winches (such as luffing and auxiliary hook winches) are installed on both sides of the seventh vertical wall frame 641. A third winch (lifting winch) is installed above the seventh horizontal wall frame 642, located between the eighth and ninth vertical wall frames. Pump station 5 is installed on the uppermost eighth horizontal wall frame 645.

[0033] In all embodiments, to ensure structural strength, the welded joints between the winch wall frame (especially the transverse wall frame) and the base plate 102 and side plate 101 of the tower frame 1 are all fully penetrated welded using bevel welding, and local reinforcing ribs 10 are added in stress concentration areas. Simultaneously, all base surfaces used for mounting the winch drum and motor are precision machined using milling machines or similar equipment to ensure their flatness and perpendicularity to the reference plane, ensuring accurate winch installation and alignment.

[0034] In addition, ventilation devices 7 (such as explosion-proof fans) or air conditioning equipment can be installed on the side plates 101 of the tower frame 1 as needed to maintain a suitable working temperature inside the tower.

[0035] When the winch assembly 4 is installed below the pump station 5, the guide hole 103 is generally opened on the transverse wall frame where the pump station 5 is located. At this time, the pump station 5 needs to be moved outward to avoid affecting the normal passage of the cable. In addition, a baffle 11 can be installed on the transverse wall frame where the pump station 5 is located. Figure 6 As shown), it is used to separate the pump station 5 from the guide hole 103 to prevent damage to the pump station 5 during the rope winding and unwinding process. In addition, in order to better prevent the ropes of the three winches from getting tangled together, a partition 12 can also be installed between the guide holes 103 (as shown). Figure 6 (As shown) or guide tubes can isolate the ropes of the three winches from each other. If the internal space of the tower frame 1 is insufficient or the structure is limited, the guide hole 103 can also be opened on the vertical wall frame, and the rope can be guided out through the pulley block. A bushing can also be installed in the guide hole 103 to make the rope pass through the guide hole 103 more smoothly. The horizontal wall frame and the vertical wall frame are not completely flat plates. Under the premise of meeting the support strength, multiple windows for maintenance and ventilation are also provided on them. In order to better facilitate the heat dissipation of the pump station 5, the pump station 5 should be at a certain distance from the horizontal wall frame, the vertical wall frame and the tower side plate 101.

[0036] The bolts, nuts, screws, welding, etc. used to connect two or more parts in the above-mentioned fixing and installation are all known to those skilled in the art and will not be repeated here. The horizontal wall frame, vertical wall frame and other components described in this article are adjusted according to the mutual relationship between the components, with the main purpose of preventing interference between different components.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A winch arrangement structure for a marine crane, characterized in that, It includes a crane tower frame (1) and a cover plate (2). The cover plate (2) is installed above the tower frame (1) through a connecting component (3). The tower frame (1) is welded by side plates (101) around and a bottom plate (102), and has an accommodation space inside. It also includes a winch wall frame. The winch wall frame is located inside the tower frame (1) and is welded and fixed to the tower side plate (101) and the bottom plate (102). The winch wall frame includes at least one horizontal wall frame and at least one vertical wall frame. The horizontal wall frame and the vertical wall frame together form multiple installation spaces for installing winch components (4). Guide holes (103) for winch ropes to pass through are provided on the tower frame (1) and the cover plate (2). A pump station (5) is also arranged inside the tower frame (1).

2. The marine crane winch arrangement structure according to claim 1, characterized in that, The winch components (4) are two types of winches among luffing winches, hoisting winches, and auxiliary hook winches, and the two winches are installed horizontally side by side.

3. The marine crane winch arrangement structure according to claim 2, characterized in that, The winch components (4) include a luffing winch, a hoisting winch, and an auxiliary hook winch, and the luffing winch, the hoisting winch, and the auxiliary hook winch are arranged in a "pin" shape or an inverted "pin" shape.

4. The marine crane winch arrangement structure according to claim 2, characterized in that, The winch wall frame includes symmetrically arranged first vertical wall frames (611) and second vertical wall frames (612), and a first horizontal wall frame (613) located above the first vertical wall frame (611) and the second vertical wall frame (612). The pump station (5) is installed on the bottom plate (102) and is located between the first vertical wall frame (611) and the second vertical wall frame (612). Any two winches are installed above the first horizontal wall frame (613).

5. The marine crane winch arrangement structure according to claim 2, characterized in that, The winch wall frame includes a third vertical wall frame (621) and a third horizontal wall frame (622) perpendicular to and located above the third vertical wall frame (621). Any two winches are installed on both sides of the third vertical wall frame (621), and the pump station (5) is installed above the third horizontal wall frame (622).

6. The marine crane winch arrangement structure according to claim 3, characterized in that, The winch wall frame includes symmetrically arranged fourth vertical wall frames (631) and fifth vertical wall frames (632), and a fourth horizontal wall frame (633) located above the fourth vertical wall frame (631) and the fifth vertical wall frame (632). A sixth vertical wall frame (634) is provided above the middle of the fourth horizontal wall frame (633), and a fifth horizontal wall frame (635) is provided above the sixth vertical wall frame (634). The pump station (5) is installed on the bottom plate (102) and is located between the fourth vertical wall frame (631) and the fifth vertical wall frame (632). Any two winches are installed above the fourth horizontal wall frame (633) and on both sides of the sixth vertical wall frame (634), and the other winch is installed above the fifth horizontal wall frame (635).

7. The marine crane winch arrangement structure according to claim 3, characterized in that, The winch wall frame includes a seventh vertical wall frame (641) and a seventh horizontal wall frame (642) that is perpendicular to and above the seventh vertical wall frame (641). An eighth vertical wall frame (643) and a ninth vertical wall frame (644) are arranged vertically and symmetrically on both sides of the seventh horizontal wall frame (642). An eighth horizontal wall frame (645) is arranged above the eighth vertical wall frame (643) and the ninth vertical wall frame (644). Two types of winches are installed on both sides of the seventh vertical wall frame (641), and another winch is installed above the seventh horizontal wall frame (642) and between the eighth vertical wall frame (643) and the ninth vertical wall frame (644). The pump station (5) is installed above the eighth horizontal wall frame (645).

8. The marine crane winch arrangement structure according to claim 1, characterized in that, The side plate (101) is equipped with multiple ventilation devices (7) and / or cooling equipment for ventilating and dissipating heat for the equipment inside the tower frame (1).

9. The marine crane winch arrangement structure according to claim 1, characterized in that, The tower frame (1) is placed in the center on the left and right sides, forming maintenance and repair areas (8) on the left and right sides for workers to repair. The rear end is welded to the rear side plate (101). The front side plate (101) of the tower frame (1) has an inspection door opening, and a door (9) is hinged on the inspection door opening.

10. The marine crane winch arrangement structure according to claim 1, characterized in that, The weld joints of the transverse wall frame and the base plate (102) and side plate (101) of the tower frame (1) are welded by bevel welding with full penetration, and local reinforcing ribs (10) are added; the surface of the mounting base of the winch wall frame is precision machined to ensure the flatness and verticality of the drum mounting plane.

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