CN114394555A - Design and application method of Z-shaped hanger for forklift in ship construction - Google Patents

Abstract

The invention discloses design and application of a Z-shaped hanging bracket for a forklift in ship construction, and relates to the field of ship construction, wherein the Z-shaped hanging bracket structurally comprises two forklift supporting grooves, and a first fixed supporting plate and a second fixed supporting plate are welded at the tops of the two forklift supporting grooves respectively; also relates to a hoisting application method. The device provided by the invention is beneficial to entering the cabin after a plurality of devices in the cabin area are carried on the upper-layer subsection, avoids the situation that a large number of process holes are formed in the conventional method, greatly reduces the preparation work before entering the cabin, greatly reduces the use frequency of a crane, reduces the cost, improves the efficiency, uses a forklift as a power source for lifting the devices, reduces the process holes for removing the deck on the upper layer of the devices, avoids repeated work loads such as detaching scaffold hands and the like, and uses the lifting port which is arranged on the hull structure and can directly reach the deck of the vehicle cabin from the outside to carry out cabin entering operation on the cabin devices.

Description

Design and application method of Z-shaped hanger for forklift in ship construction

technical field

The invention relates to the field of ship construction, in particular to the design and application of a Z-shaped hanger for forklifts in ship construction.

Background technique

The vehicle cabin for special vehicles, the cabin has a large flat deck, the top structural deck is generally an office and living cabin, and the bottom is generally an engine room or an auxiliary engine room. The office and living cabins above the vehicle cabin are densely divided, and the hull structure is complex. The engine room area below is equipped with many functional equipment to ensure the normal operation of the ship. During the construction process of the ship in the dock, the hull structure is carried by general construction. Method, that is, in the process of forming the general section of the bottom engine room area, the equipment inside the engine room is generally hoisted by using a crane in the dock area or arranging a car hoist on the deck through the temporary process hole on the deck. After the equipment in the standby cabin area is hoisted, then Carry out the hoisting of the general section on the first floor of the vehicle cabin, then carry out the hoisting of the office and living general section on the top floor, and finally complete the hoisting of the general section of the superstructure. According to the actual situation of the existing ship construction, many equipment in the engine room area are due for delivery. It cannot fully meet the construction progress of the hull structure. Therefore, after the overall loading of the top deck of the vehicle cabin is completed, the equipment in the engine room area can no longer be hoisted by the large lifting machinery in the dock, and the top deck of the vehicle cabin can no longer be hoisted. Generally, an upside-down scaffolding platform is set up due to construction requirements such as installation of pipeline cables, which results in that the height between the vehicle deck and the scaffolding platform cannot meet the safe operation requirements of the car crane. The general weight of the equipment in the engine room area is about 1 ton. Manual handling cannot be carried out, and mechanical assisted handling must be used.

In order to solve the problem of the equipment entering the cabin area after the top deck of the vehicle cabin is loaded, the conventional construction method is to open the vehicle cabin deck process hole just above the equipment position in the engine room area, and remove the upside-down hanging in the part of the top deck area of the vehicle cabin directly above it. Scaffolding platform, and then open a process hole on the top deck of the vehicle cabin, and finally use the dock hoisting machinery to hoist the equipment in the engine room. There are many difficulties and problems in the construction of this conventional method. First, it increases the opening and reset of the process hole on the top deck of the vehicle cabin; second, it increases the dismantling and erection of the top scaffolding platform; Distributed and scattered, once the number of equipment that fails to enter the cabin on time increases, the workload of process holes and scaffolding platforms will increase greatly, consume a lot of manpower and material resources, and also increase safety hazards. For this reason, a forklift truck in ship construction is proposed. Design and application of Z-type hangers.

SUMMARY OF THE INVENTION

(1) Purpose of the invention

In order to solve the technical problems existing in the background technology, the present invention proposes a design and application of a Z-shaped hanger for forklifts in ship construction. The device proposed in the present invention is beneficial to the installation of multiple equipments in the engine room area after the upper section has been mounted. Entering the cabin, it avoids opening a large number of process holes in the conventional method, greatly reducing the preparation work before entering the cabin, and at the same time greatly reducing the frequency of crane use, reducing costs, improving efficiency, and using forklifts as the power source of lifting equipment To lift and transport equipment, reduce the need to open process holes except for the deck above the equipment, avoid repeated workloads such as dismantling and scaffolding, and use the hoisting port that comes with the hull structure that can directly reach the deck of the vehicle cabin from the outside to carry out the engine room. Equipment entry into the cabin.

(2) Technical solutions

The invention provides the design and application of a Z-shaped hanger for forklift trucks in ship construction, which includes two forklift support slots, and the tops of the two forklift support slots are respectively welded with a first fixed support plate and a second bracket. Two fixed support plates, a load-bearing beam is welded on the side of the second fixed support plate away from the forklift support groove, and a beam is welded on the end of the load-bearing beam away from the second fixed support plate, and the two sides of the beam are welded Reinforcing ribs are welded, and one end of the reinforcing ribs away from the beam is welded with the side of the first fixed support plate far away from the forklift supporting groove, and the sides of the reinforcing ribs close to each other are welded with both sides of the load-bearing beam. The bottom of the beam is welded with a connecting block, and a chain hoist is fixedly installed on the side of the connecting block away from the beam.

As a preferred solution of the present invention, the interior of the beam is provided with a through groove, the interior of the through groove is provided with a reinforcing channel steel, and the top and bottom of the reinforcing channel steel are welded to the inner wall of the through groove inside the beam, and the The vertical section of the reinforced channel steel is "I" shape.

As a preferred solution of the present invention, the cross-section of the load-bearing beam is trapezoidal, and a through hole with a vertical cross-section of a "cross" is opened in the inside of the forklift bracket.

As a preferred solution of the present invention, it also has the following application method:

Step 1: Check the product samples of the equipment manufacturers to clarify the lifting parameters of the equipment. According to the layout of the equipment in the engine room and the maximum external dimensions of the equipment, open a process hole that can meet the passage of the equipment directly above the location of the equipment;

Step 2: Use the hoisting machinery in the dock area to hoist the equipment to the vehicle cabin deck through the hoisting port that comes with the hull structure;

Step 3: Use this device for the next step of transportation. The power source for transportation is a forklift. Hang the equipment on the beam with a hand chain hoist. After tightening the hand chain hoist, the forklift lifts the device, and the equipment is lifted off the ground immediately;

Step 4: After lifting the equipment to the craft hole above the corresponding position of the engine room, adjust the position of the forklift and the angle of the chain hoist to make the equipment align with the craft hole, slowly lower the equipment through the hand chain hoist, and enter through the craft hole. Go to the lower engine room area, after the top of the equipment passes through the process hole, stop the operation of the chain hoist, and switch to a forklift to slowly lower the device to keep the equipment descending. When the bottom of the equipment is 200mm away from the engine room deck, stop the forklift operation, and change to The chain hoist lowers the equipment to its final position.

Step 5: After the equipment is in place, remove the shackle on the equipment, and repeat the hoisting of the remaining equipment.

Compared with the prior art, the above-mentioned technical solutions of the present invention have the following beneficial technical effects:

1. The method of the present invention basically uses a forklift as a power source for the hoisting process of the equipment, and as a kind of lifting vehicle, its lifting method is to lift the items from the bottom to the top, so the forklift can be used for transportation in production. Items generally have support legs under the body, which can ensure that there is a certain gap between the body and the ground, so that the forklift can be simple, convenient and widely applicable.

2. The method of the present invention is conducive to the entry of multiple equipment in the cabin area after the upper section has been loaded, avoiding the conventional method to open a large number of process holes, greatly reducing the preparation work before entering the cabin, and at the same time greatly reducing The frequency of crane usage is reduced, the cost is reduced, and the efficiency is improved.

3. Use the forklift as the power source of the hoisting equipment to hoist the equipment, reduce the opening of the process holes except the deck above the equipment, and avoid repeated workloads such as dismantling and setting up scaffolding, and use the built-in hull structure to be directly accessible from the outside. The hoisting port of the vehicle cabin deck is used to carry out the cabin equipment entry operation.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

FIG. 1 is a schematic structural diagram of the design and application of a Z-shaped hanger for a forklift in ship construction proposed by the present invention.

2 is a schematic cross-sectional structural diagram of a reinforced channel steel for the design and application of a Z-shaped hanger for a forklift in ship construction proposed by the present invention.

3 is a schematic cross-sectional structural diagram of a load-bearing beam for the design and application of a Z-shaped hanger for a forklift in ship construction proposed by the present invention.

FIG. 4 is a schematic diagram before hoisting in a method for hoisting a Z-shaped hanger for a forklift in ship construction proposed by the present invention.

5 is a schematic diagram after hoisting in a method for hoisting a Z-shaped hanger for a forklift in ship construction proposed by the present invention.

Reference numerals: 1. Forklift supporting groove; 2. The first fixed supporting plate; 3. Reinforcing ribs; 4. Bearing beam; 5. Beam; 6. Reinforcing channel; Fixed support plate; 9, connecting block; L, forklift; M, Z hanger; N, chain hoist.

Detailed ways

The following description is merely exemplary in nature and is not intended to limit the present disclosure, applications, and uses. It should be understood that throughout the drawings, the same or similar reference numbers refer to the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Certain parts of certain figures may be used to illustrate details or structures relevant to the embodiments of the present disclosure in an exaggerated manner.

Since some ship products are designed with large indoor cabins for loading vehicles, during the construction process of the ship products, after the main hull is loaded, the cabin has completed the welding of the roof structure. Therefore, when hoisting internal equipment, it is impossible to effectively use the shipyard's construction site. Large-scale hoisting machinery for equipment hoisting.

1-3, the present invention relates to the design of a Z-shaped hanger for forklift trucks in shipbuilding. As a special-purpose Z-shaped hanger for shipbuilding, its structure includes two forklift support slots 1, two forklift trucks The top of the bracket groove 1 is respectively welded with a first fixed support plate 2 and a second fixed support plate 8. The side of the second fixed support plate 8 away from the forklift bracket groove 1 is welded with a load-bearing beam 4. The load-bearing beam 4 One end away from the second fixed support plate 8 is welded with a cross beam 5, both sides of the cross beam 5 are welded with reinforcing ribs 3, and one end of the reinforcing ribs 3 away from the cross beam 5 is away from the first fixed support plate 2. The forklift support groove 1 The side of the rib 3 is welded with the two sides of the load-bearing beam 4, and the bottom of the beam 5 is welded with a connecting block 9, and the side of the connecting block 9 away from the beam 5 is fixedly installed with a chain hoist 7, and the beam The interior of 5 is provided with a through groove, the interior of the through groove is provided with a reinforcing channel steel 6, the top and bottom of the reinforcing channel steel 6 are welded with the inner wall of the through groove inside the beam 5, and the vertical section of the reinforcing channel steel 6 is in the shape of "I". , the cross-section of the load-bearing beam 4 is trapezoidal, and the interior of the forklift bracket groove 1 is provided with a through hole whose vertical cross-section is a "cross".

Referring to Figure 4 and Figure 5, we also propose an application method of a Z-type hanger for forklifts in ship construction, which has the following application methods:

Step 1: Check the product samples of the equipment manufacturers to clarify the lifting parameters of the equipment. According to the layout of the equipment in the engine room and the maximum external dimensions of the equipment, open a process hole that can meet the passage of the equipment directly above the location of the equipment, that is, the process of equipment A shown in Figure 3 hole, device B process hole and device C process hole. Table 1 shows some equipment specifications for entering the cabin, and it is also the reference size standard for opening process holes.

Table 1 Lifting parameters of the equipment to be entered into the cabin

device name Weight (kg) Length(mm) Width(mm) Height(mm) Process hole size (mm) Device A 800 800 600 2000 950*750 Device B 1200 1200 1500 1500 1350*1650 device C 900 600 2000 1000 750*2150

Step 2: Using the hoisting machinery in the dock area, first hoist the hoisting equipment, including equipment A, onto the vehicle cabin deck through the hoisting port that comes with the hull structure, as shown in Figure 4;

Step 3: Use this device for the next step of transportation. The power source for transportation is the forklift L. Hang the equipment on the beam of the Z-type hanger M with the hand chain hoist N. After tightening the hand chain hoist N, the forklift L lifts the machine. The device, namely the Z-type hanger M, the equipment is then lifted away from the vehicle deck where it is located;

Step 4: After lifting the equipment to the process hole above the corresponding position of the engine room, adjust the position of the forklift L and the angle of the chain hoist N to make the equipment align with the process hole, and slowly put the equipment down through the chain hoist N. The process hole enters the lower engine room area. After the top of the equipment passes through the process hole, stop the operation of the chain hoist N, and switch to the forklift L to slowly lower the device, so that the equipment continues to descend. When the distance between the bottom of the equipment and the engine room deck is 200mm, stop the forklift truck. L operation, change to chain hoist N again to lower the equipment to the final position.

Step 5: After the equipment is in place, remove the shackle on the equipment, and repeat the hoisting of the remaining equipment.

The working principle and concrete process of the present invention are described as follows:

After the equipment is hoisted into the vehicle deck by the lifting machine in the dock area through the hanging port of the hull structure, the front shovel of the driving forklift is inserted into the interior of the forklift support tank 1 .

The forklift front shovel is tightly combined with the interior of the forklift bracket 1, and the equipment is suspended on the beam 5 by manpower shaking the chain block 7. After tightening the chain block 7, the forklift lifts the device and the hook of the chain block 7. The hanging equipment will be lifted off the ground immediately.

After lifting the equipment to the process hole above the corresponding position of the engine room, adjust the position of the forklift and the angle of the chain hoist 7 to make the equipment align with the process hole, slowly lower the equipment through the hand chain hoist 7, and enter the hole through the process hole. In the lower engine room area, stop the operation of the chain hoist 7 after the top of the equipment passes through the process hole.

Finally, switch to a forklift to slowly lower the device to make the device continue to descend. When the distance between the bottom of the device and the deck of the engine room is 200mm, stop the forklift operation, and switch to the chain hoist again to lower the device to the final position. After the device is in place, remove the Shackle, and repeat the hoisting of the remaining equipment. The state of the equipment after the hoisting is completed is shown in Figure 5.

To sum up, the device and the application method of the present invention are beneficial to the entry of multiple equipments in the cabin area after the upper section has been loaded, avoiding the need for a large number of process holes in the conventional method, and greatly reducing the preparation before entering the cabin. At the same time, it greatly reduces the frequency of crane use, reduces costs, improves efficiency, and uses forklifts as the power source of lifting equipment to lift equipment, reducing the need to open process holes except for the deck above the equipment, eliminating the need for dismantling and setting up scaffolding. For repeated workloads, the cabin equipment entry operation is carried out by using the hanging port of the hull structure that can directly reach the deck of the vehicle cabin from the outside.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. A design of a Z-shaped hanger for forklift trucks in ship construction, comprising two forklift support grooves (1), characterized in that the tops of the two forklift support grooves (1) are respectively welded with first A fixed support plate (2) and a second fixed support plate (8) are welded with a load-bearing beam (4) on the side of the second fixed support plate (8) away from the forklift support groove (1). A cross beam (5) is welded to the end of the load-bearing beam (4) away from the second fixed support plate (8), and reinforcing ribs (3) are welded on both sides of the cross beam (5), and the reinforcing ribs (3) are far from One end of the beam (5) is welded to the side of the first fixed support plate (2) away from the forklift support groove (1), and the side of the reinforcing ribs (3) close to each other is connected to the two sides of the load-bearing beam (4). Side welding, the bottom of the beam (5) is welded with a connecting block (9), and a chain hoist (7) is fixedly installed on the side of the connecting block (9) away from the beam (5). 2. The design of a Z-shaped hanger for a forklift in a ship construction according to claim 1, wherein a through groove is provided in the interior of the beam (5), and a reinforcing channel steel ( 6), the top and bottom of the reinforcing channel steel (6) are welded with the inner wall of the through-groove inside the beam (5), and the vertical section of the reinforcing channel steel (6) is "I" shape. 3. The design of a Z-shaped hanger for a forklift in ship construction according to claim 1, wherein the cross-section of the load-bearing beam (4) is trapezoidal, and the A through hole with a vertical cross section in the shape of a "cross" is opened inside. 4. an application method of a Z-shaped hanger for a forklift in shipbuilding, characterized in that the method comprises: Step 1: Check the product samples of the equipment manufacturers to clarify the lifting parameters of the equipment. According to the layout of the equipment in the engine room and the maximum external dimensions of the equipment, open a process hole that can meet the passage of the equipment directly above the location of the equipment; Step 2: Use the hoisting machinery in the dock area to hoist the equipment to the vehicle cabin deck through the hoisting port that comes with the hull structure; Step 3: Use this device for the next step of transportation. The power source for transportation is a forklift. Hang the equipment on the beam (5) with a hand chain hoist (7). After tightening the hand chain hoist (7), the forklift lifts the device. , the equipment is lifted off the ground immediately; Step 4: After lifting the equipment to the process hole above the corresponding position of the engine room, adjust the position of the forklift and the angle of the chain hoist (7) to make the equipment align with the process hole, and slowly move the equipment through the chain hoist (7). Put it down, enter the lower engine room area through the process hole, stop the operation of the chain hoist (7) after the top of the equipment passes through the process hole, and replace it with a forklift to slowly lower the device, so that the equipment continues to descend, and wait until the bottom of the equipment is 200mm away from the engine room deck. When the forklift is stopped, switch to the chain hoist (7) again to lower the equipment to the final position. Step 5: After the equipment is in place, remove the shackle on the equipment, and repeat the hoisting of the remaining equipment.

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