Multi-purpose hoisting tool for large marine methanol main engine blower control box

Abstract

The invention belongs to the technical field of hoisting tools, and particularly relates to a multipurpose hoisting tool for a large marine methanol main engine blower control box. The device comprises a chassis part tool assembly, the bottom of which is provided with an anti-toppling support device; a rear supporting tool assembly is welded to the back of the longitudinal support part tool assembly, a front support is welded to the front of the longitudinal support part tool assembly, and a longitudinal long-strip-shaped hole is formed in a longitudinal support of the longitudinal support part tool assembly; the air blower control box hoisting bracket is connected to the upper part of the longitudinal bracket part tool assembly and is provided with a lifting lug to realize multi-point hoisting; the bottom support is welded at the front end of the chassis assembly; the bottom support, the longitudinal support and the air blower control box hoisting support form a gravity center forward-inclining structure. The functions of vertical installation, mobile transportation and toppling prevention of the air blower control box are achieved. The lifting operation of the control box can be completed by one person, the labor cost and the safety risk are reduced, lifting is stable and reliable, and the universality is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of lifting tooling, and particularly relates to a multi-purpose lifting tooling for a large marine methanol main engine blower control box. Background Art

[0002] During the transportation and installation of a large marine methanol main engine blower control box, there are significant defects in the traditional method. The transportation of the blower control box from the finished product warehouse to the bottom of the test bench relies on manual towing by a flatbed truck, and the transportation on the top of the test bench requires multiple people to cooperate in handling, resulting in low efficiency and great potential safety hazards.

[0003] For the existing large marine methanol main engine blower control box lifting tooling, the lifting mainly relies on direct lifting by a crane, lacking a special tooling, which leads to insufficient lifting accuracy and easy damage to equipment. In addition, the control box placed flat on the ground occupies space, affecting the movement of other equipment and making it difficult to meet the layout requirements of the emission test in the technical center. The previously attempted fixed installation brackets are complex to disassemble and assemble, heavy in weight, reaching 80 kg per single box, requiring multiple people to operate, with high construction difficulty and high costs. The existing tooling lacks mobility, anti-tipping function and multi-model adaptation ability, and cannot achieve the vertical installation and stable transportation of the control box. These problems seriously restrict the production efficiency and safety, and there is an urgent need for a special tooling integrating transportation, lifting, anti-tipping and multi-purpose adaptation functions to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve the problems of insufficient lifting accuracy of the existing large marine methanol main engine blower control box lifting tooling, requiring multiple people to cooperate in operation, poor safety; inability to achieve the vertical installation and stable transportation of the control box; and poor adaptability. The present invention proposes a multi-purpose lifting tooling for a large marine methanol main engine blower control box, including: a chassis part tooling assembly, fixed with casters with braking functions by bolts, and provided with an anti-tipping support device at the bottom; a longitudinal bracket part tooling assembly, vertically welded to the chassis part tooling assembly, with a rear support tooling assembly welded to its back and a front support welded to its front. Longitudinal long holes adapted to different models are provided on the longitudinal brackets of the longitudinal bracket part tooling assembly; a blower control box lifting bracket, connected to the upper part of the longitudinal bracket part tooling assembly through adjustable bolts, and equipped with lifting lugs to achieve multi-point lifting; a bottom support is welded to the front end of the chassis assembly; the bottom support, the longitudinal bracket and the blower control box lifting bracket form a structure with a forward-tilted center of gravity; a wiring space is reserved at the lower part of the tooling, and the whole is connected by a combination of welding and bolts to achieve the vertical installation, mobile transportation and anti-tipping functions of the blower control box.

[0005] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, lifting lugs are provided on both the longitudinal support part tooling assembly and the front support, and the distribution positions of the lugs meet the lifting requirements of three to five points; there are 4 casters; there are 6 anti-tipping support devices; the total height of the tooling is 1500 - 2000 mm, the wiring space height is 300 - 500 mm, and there are 8 - 15 lifting lugs.

[0006] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, the inclination angle between the blower control box lifting bracket with a forward center of gravity structure and the plane perpendicular to the horizontal plane is 3° - 8°; the width of the long slot of the longitudinal support of the longitudinal support part tooling assembly is 10 - 30 mm, and the adjustable length range is 500 - 800 mm, which is suitable for the installation dimensions of various blower control boxes.

[0007] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, the anti-tipping support device is a threaded rod structure, and the support height is adjusted by rotation, with a maximum adjustment stroke of 100 mm.

[0008] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, the casters are 4-inch polyurethane silent wheels, with a single load-bearing capacity of 120 kg, and the brackets are equipped with double ball bearings and treated with an anti-corrosion coating.

[0009] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, a steel plate with a thickness of 3 - 8 mm is provided for transitional connection between the blower control box lifting bracket and the longitudinal support part tooling assembly, and the edges of the steel plate are chamfered to avoid stress concentration.

[0010] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, the rear support tooling assembly is a triangular truss structure, welded to the back of the longitudinal support part tooling assembly to enhance the overall torsional stiffness.

[0011] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, reinforcing rib plates are provided at the connection between the front support and the chassis part tooling assembly, the thickness of the rib plates is 5 - 15 mm, and the welding length is 150 - 200 mm.

[0012] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, the surface of the tooling is coated with epoxy zinc-rich primer and polyurethane topcoat, and the total thickness of the coating is ≥120 μm, meeting the anti-corrosion requirements of the ship environment.

[0013] According to the multi-purpose lifting tooling for the large marine methanol main engine blower control box described above, the lifting lugs are made of forged alloy steel, with a rated load of 500 kg, and are fixed to the bracket nodes by double-sided full welding.

[0014] The beneficial effects of the present invention are described as follows:

[0015] 1. By equipping with brake casters, the tooling can move freely and stop stably, solving the problem of long-distance transportation, and a single person can complete the operation.

[0016] 2. The hoisting bracket and lug design of the blower control box of the present invention support multi-point hoisting. The long slot structure of the longitudinal bracket of the tooling assembly of the longitudinal bracket part adapted to different models improves the versatility of the tooling.

[0017] 3. The bottom support of the present invention is welded to the front end of the chassis assembly, and together with the longitudinal bracket, it forms a structure with a forward-tilted center of gravity and an anti-tipping device, ensuring the stable operation of the tooling under load and avoiding the risk of tipping.

[0018] 4. The wiring space is arranged at the bottom of the tooling assembly of the chassis part of the present invention, simplifying the equipment installation and electrical connection process and reducing the construction time. The tooling assembly adopts modular welding and bolt connection, with high structural strength and easy maintenance.

[0019] The tooling of the present invention significantly improves the transportation and installation efficiency of the blower control box. In practical applications, the tooling can replace traditional manual handling and direct hoisting by a crane, reducing labor costs and safety risks. At the same time, it can adapt to the layout requirements of various test benches, saving more than 30% of the manufacturing cost and increasing the construction efficiency by 50%. Brief Description of the Drawings

[0020] Figure 1 is a perspective view of the structural schematic diagram of the multi-purpose hoisting tooling for the large marine methanol main engine blower control box of the present invention.

[0021] Figure 2 is the front view of the structural schematic diagram of the multi-purpose hoisting tooling for the large marine methanol main engine blower control box of the present invention.

[0022] Figure 3 is the rear view of the structural schematic diagram of the multi-purpose hoisting tooling for the large marine methanol main engine blower control box of the present invention.

[0023] Figure 4 is the right view of the structural schematic diagram of the multi-purpose hoisting tooling for the large marine methanol main engine blower control box of the present invention.

[0024] Figure 5 is the working state diagram of the multi-purpose hoisting tooling for the large marine methanol main engine blower control box of the present invention after placing the control box.

[0025] In the figure: 1 - Tooling assembly of the chassis part, 2 - Tooling assembly of the longitudinal support part, 3 - Tooling assembly of the rear support, 4 - Front support, 5 - Bottom support, 6 - Hoisting bracket for the blower control box, 7 - Caster, 8 - Control box. Detailed implementation manners

[0026] Preferred implementation manners

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] As Figures 1 to 4 shown: The multi-purpose hoisting tooling for the blower control box of a large marine methanol main engine includes: the tooling assembly 1 of the chassis part, on which casters 7 with braking functions are fixed by bolts, and an anti-tipping support device is provided at the bottom; the tooling assembly 2 of the longitudinal support part is vertically welded to the tooling assembly 1 of the chassis part, the rear support tooling assembly 3 is welded to its back, the front support 4 is welded to the front, and longitudinal long holes adapted to different models are provided on the longitudinal support of the tooling assembly 2 of the longitudinal support part; the hoisting bracket 6 for the blower control box is connected to the upper part of the tooling assembly 2 of the longitudinal support part through adjustable bolts, and is equipped with lifting lugs to realize multi-point hoisting; the bottom support 5 is welded to the front end of the chassis assembly 1; the bottom support 5, the longitudinal support 2 and the hoisting bracket 6 for the blower control box form a structure with a forward-tilted center of gravity; a wiring space is reserved at the lower part of the tooling, and the whole is connected by a combination of welding and bolts to realize the vertical installation, mobile transportation and anti-tipping functions of the blower control box.

[0029] Lifting lugs are provided on both the tooling assembly 2 of the longitudinal support part and the front support 4, and the distribution positions of the lifting lugs meet the hoisting requirements of three to five points; there are 4 casters 7; there are 6 anti-tipping support devices; the total height of the tooling is 1500 - 2000 mm, the height of the wiring space is 300 - 500 mm, and there are 8 - 15 lifting lugs.

[0030] The inclination angle between the hoisting bracket 6 for the blower control box with a forward-tilted center of gravity and the plane perpendicular to the horizontal plane is 3° - 8°; the width of the long hole of the longitudinal support of the tooling assembly 2 of the longitudinal support part is 10 - 30 mm, and the adjustable range of the length is 500 - 800 mm, which is adapted to the installation dimensions of various blower control boxes.

[0031] The anti-tipping support device is a threaded rod structure, and the support height is adjusted by rotation, and the maximum adjustment stroke is 100 mm.

[0032] The caster 7 is a 4-inch polyurethane silent wheel, with a single load-bearing capacity of 120 kg, and the bracket is provided with double ball bearings and anti-corrosion coating treatment.

[0033] There is a transition connection with a steel plate 3 - 8 mm thick between the blower control box lifting bracket 6 and the longitudinal bracket part tooling assembly 2, and the edges of the steel plate are chamfered to avoid stress concentration.

[0034] The rear support tooling assembly 3 is a triangular truss structure, welded to the back of the longitudinal bracket part tooling assembly 2 to enhance the overall torsional stiffness.

[0035] Reinforcing ribs are provided at the connection between the front support 4 and the chassis part tooling assembly 1. The thickness of the ribs is 5 - 15 mm, and the welding length is 150 - 200 mm.

[0036] The surface of the tooling is coated with an epoxy zinc - rich primer and a polyurethane topcoat, and the total thickness of the coating is ≥120 μm, meeting the anti - corrosion requirements of the ship environment.

[0037] The lifting lugs are made of forged alloy steel, with a rated load of 500 kg, and are fixed to the bracket nodes by full - penetration double - sided welding.

[0038] As Figures 1 to 5 As shown, the multi - purpose lifting tooling for the large marine methanol main engine blower control box in this embodiment includes: the chassis part tooling assembly 1, the longitudinal bracket part tooling assembly 2, the rear support tooling assembly 3, the front support 4, the bottom support 5, the blower control box lifting bracket 6, and the caster wheels 7. The chassis part tooling assembly 1 is a welded frame made of channel steel, with dimensions of 2356 mm × 789 mm. Four - inch caster wheels 7 with brakes are fixed at the four corners through M16 bolts, and the caster wheel brackets of the caster wheels 7 are lined with double - ball bearings to ensure smooth movement. The longitudinal bracket part tooling assembly 2 is an H - shaped steel, vertically welded to the rear end of the chassis part tooling assembly 1. The triangular rear support tooling assembly 3 is welded to its back, and the front is welded to the front support 4 through a steel plate inclined at 5°, forming a structure with a forward - tilted center of gravity. Long - slot holes with an adjustable pitch are opened on the surface of the longitudinal bracket of the longitudinal bracket part tooling assembly 2, with a hole width of 20 mm, for fixing blower control boxes of different sizes.

[0039] The blower control box lifting bracket 6 is an L - shaped steel plate, connected to the top of the longitudinal bracket of the longitudinal bracket part tooling assembly 2 by bolts. Eleven lifting lugs are evenly distributed along its edge. The lifting lugs are forged from 35CrMo alloy steel, with a rated load of 500 kg, supporting a three - to - five - point lifting mode. The bottom support 5 is welded to the front end of the chassis part tooling assembly 1, jointly forming a stable support structure with the longitudinal bracket part tooling assembly 2. Six groups of screw - type anti - tipping devices are provided below the chassis part tooling assembly 1. The support height is adjusted by rotation, with a maximum stroke of 100 mm. The caster wheels 7 can be locked under load to prevent the tooling from sliding or tipping.

[0040] The surface of the tooling is coated with 80μm epoxy zinc-rich primer and 40μm polyurethane topcoat, with a total thickness of ≥120μm, suitable for the high-humidity environment of ships. During installation, lift the blower control box to the blower control box hoisting bracket 6, fix it with long slots and bolts, adjust the anti-tipping device to touch the ground, and step on the brake of the casters 7 to ensure stable transportation. When installing at the top of the test bench, use the lifting lugs to lift the entire tooling to the designated position. After removing the bottom bolts, keep the blower control box in a vertical state, and the 400mm space at the lower part is convenient for electrical wiring. This embodiment takes into account the functions of transportation, hoisting, installation and anti-tipping, significantly improving the construction efficiency and safety.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. Multi-purpose lifting tooling for control box of large-scale marine methanol main engine blower, characterized by: include: The chassis part tooling assembly (1) is fixed with a caster (7) with a brake function by bolts, and an anti-dumping support device is provided at the bottom; The longitudinal support part tooling assembly (2) is vertically welded to the chassis part tooling assembly (1), and a rear support tooling assembly (3) is welded to the back thereof, and a front support (4) is welded to the front thereof. The longitudinal support of the longitudinal support part tooling assembly (2) is provided with longitudinal long holes adapted to different models; the blower control box lifting bracket (6) is connected to the upper part of the longitudinal support part tooling assembly (2) by adjustable bolts, and is equipped with lifting ears to realize multi-point lifting; the bottom support (5) is welded to the front end of the chassis assembly (1); The bottom support (5), the longitudinal support (2) and the blower control box lifting support (6) form a forward-leaning structure with a center of gravity; a wiring space is reserved at the bottom of the tooling, and the whole is connected by welding and bolts, so as to realize the vertical installation, mobile transportation and anti-dumping functions of the blower control box.

2. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 1 is characterized by: The longitudinal support part tooling assembly (2) and the front support (4) are both provided with lifting lugs, and the distribution positions of the lifting lugs meet the requirements of three-point to five-point lifting; there are four casters (7); there are six anti-dumping support devices; the total height of the tooling is 1500-2000mm, the wiring space is 300-500mm high, and there are 8-15 lifting lugs.

3. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 2 is characterized by: The inclination angle between the blower control box lifting bracket (6) with a forward-leaning center of gravity structure and the plane of the vertical horizontal plane is 3°-8°; the width of the long strip hole of the longitudinal bracket of the longitudinal bracket part tooling assembly (2) is 10-30mm, and the adjustable length range is 500-800mm, which is suitable for various blower control box installation sizes.

4. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 3 is characterized by: The anti-dumping support device is a threaded rod structure, and the support height is adjusted by rotation, and the maximum adjustment stroke is 100mm.

5. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 4 is characterized by: The caster (7) is a 4-inch polyurethane silent wheel, each bearing a load of 120 kg, and the bracket adopts a double ball bearing and is treated with an anti-corrosion coating.

6. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 5 is characterized by: A 3-8 mm thick steel plate transition connection is provided between the blower control box lifting bracket (6) and the longitudinal bracket part tooling assembly (2), and the edges of the steel plate are chamfered to avoid stress concentration.

7. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 6 is characterized by: The rear support tooling assembly (3) is a triangular truss structure, which is welded to the back of the longitudinal support part tooling assembly (2) to enhance the overall torsional rigidity.

8. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 7 is characterized by: A reinforcing rib is provided at the connection between the front support (4) and the chassis part tooling assembly (1); the rib thickness is 5-15 mm and the welding length is 150-200 mm.

9. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 8 is characterized by: The surface of the tooling is coated with epoxy zinc-rich primer and polyurethane topcoat, and the total coating thickness is ≥120 μm, meeting the environmental anti-corrosion requirements of ships.

10. The multi-purpose lifting tool for the control box of the large-scale methanol main engine blower of claim 9, characterized in that: The lifting lug is made of forged alloy steel, has a rated load of 500kg, and is fixed to the support node by double-sided full welding.

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