A skid for placing different models of weights together

Abstract

The utility model relates to a cushion plate for different models of counterweight to be placed together, which belongs to the technical field of cushion plates and comprises a cushion plate, wherein the cushion plate is in a cuboid structure and is used to fill between two adjacent protrusions on the top of the counterweight to meet the installation adaptation requirements of the same crane; an opening is formed in the bottom of the cushion plate, and the opening is used for loading and unloading the cushion plate. The utility model aims to solve the problem that different models of counterweights cannot be used universally, leading to high transportation cost and low construction efficiency, and to realize that a cushion plate can be adapted to multiple models of counterweights, thereby reducing the transportation amount of counterweights, saving project cost, and ensuring construction progress. The cushion plate for different models of counterweights to be placed together makes different models of counterweights available for the same crane.

Description

Technical Field

[0001] This utility model belongs to the field of pad technology, and also to the field of construction activities involving petrochemicals, wind power and other industries that require the use of cranes (using super-lift counterweights), specifically relating to a pad for placing different types of counterweights together. Background Technology

[0002] In large-scale engineering projects such as petrochemicals and wind power, crawler cranes are often used in superlift mode to lift heavy equipment. In such conditions, the demand for superlift counterweights is extremely high, and different models of crawler cranes have different compatible counterweight dimensions and installation interfaces.

[0003] Currently, the industry generally adopts a "one-to-one matching" model, meaning that a specific crane model can only be paired with a corresponding model of counterweight. This results in projects using multiple crane models requiring separate transport of dedicated counterweights for each model. However, the counterweights themselves are heavy and bulky, leading to extremely high labor, material, and time costs during transportation, which constitute a significant portion of the total project cost. Furthermore, when a particular model of counterweight is in short supply and cannot be replaced with another model, it can cause delays in construction and reduce overall project efficiency. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a pad for placing counterweights of different models together. It aims to solve the problem of incompatibility between counterweights of different crane models, which leads to high transportation costs and low construction efficiency. This allows a single pad to accommodate multiple counterweight models, reducing the amount of counterweight transported, saving project costs, and ensuring construction progress. This pad enables different types of counterweights to be used on the same crane.

[0005] To overcome the shortcomings of the existing technology, this utility model provides a solution for a pad for placing different types of counterweights together, as detailed below: A pad for placing different types of counterweights together, comprising: pad; The pad is a rectangular parallelepiped structure. The pad is used to fill the space between two adjacent protrusions on the top of the counterweight to meet the installation and adaptation requirements of the same crane. The bottom end of the pad has an opening for loading and unloading.

[0006] Furthermore, the pad is made of high-strength metal.

[0007] Furthermore, the high-strength metal material is Q345B low-alloy high-strength structural steel.

[0008] Furthermore, the pad has two or more standard thickness specifications, with the basic specifications including 50mm and 80mm.

[0009] Furthermore, the surface of the pad is flat, and the edges of the pad are rounded.

[0010] Furthermore, to meet the installation compatibility requirements of the same crane, a single pad of corresponding thickness is selected based on the difference in the top protrusion height of different models of counterweights, or multiple pads of different thicknesses are stacked to ensure that the tops of different models of counterweights remain flush after placement.

[0011] Furthermore, chains are also provided for the pads used to place different types of counterweights together.

[0012] Furthermore, after the counterweight and pad are assembled and placed, the chain is used to wrap around the entire counterweight and pad, locking it in the crane counterweight installation area.

[0013] Furthermore, there is an opening at the bottom rear end of the pad.

[0014] Furthermore, the bottom front end of the pad has two openings.

[0015] The beneficial effects of this utility model are as follows: Cost reduction: There is no need to transport special counterweights separately for different crane models. Existing counterweights can be adapted by using pads, reducing the number of times and the amount of counterweights to be transported, significantly reducing the project's mechanical transportation costs. It is estimated that related transportation costs can be reduced by 30%-50%.

[0016] Improve efficiency: Solve the problem of counterweight model shortage. When a certain model of counterweight is insufficient, other models of counterweight can be adapted by using pads, avoiding construction stagnation caused by counterweight problems and ensuring that the project progresses as planned.

[0017] Ensuring safety: The high-strength material of the pad can withstand the heavy pressure of the counterweight, and it has strong stability when used in combination. With the chain locking structure, it effectively prevents the counterweight from slipping and reduces the safety risks during the hoisting process. Attached Figure Description

[0018] Figure 1 A top view of a pad used to place different types of counterweights together; Figure 2 Rear view of a pad used to place different types of counterweights together; Figure 3 A front view of a pad used to place different types of counterweights together; Figure 4 A three-dimensional view of a pad used to place different types of counterweights together; Figure 5 A plan view of the assembly of pads used to place different types of counterweights together; Figure 6This is a perspective view of a pad assembly used to place different types of counterweights together. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 6 As shown, the pad for placing different types of counterweights together according to this utility model includes: Pad 1; The pad 1 has a cuboid structure and is used to fill the space between two adjacent protrusions on the top of the counterweight 3 to meet the installation and adaptation requirements of the same crane. An opening 2 is provided at the bottom end of the pad 1, which is used for loading and unloading the pad 1.

[0021] The design with an opening at the bottom of the pad has significant technical advantages, especially during the loading and unloading process, as shown below: 1. Facilitates insertion and operation by forklifts or lifting equipment. The opening at the bottom of the pad allows forklift forks or lifting tools to be easily inserted underneath, enabling fast and stable handling and positioning.

[0022] Compared to solid pads, open structures reduce the weight of the pads while providing clear operating interfaces, thus improving loading and unloading efficiency.

[0023] 2. Adapt to the needs of different loading and unloading equipment The opening size can be standardized according to the thickness of commonly used forklift forks or the size of lifting devices to ensure versatility and adaptability.

[0024] In narrow or complex construction site environments, open structures facilitate manual handling or fine-tuning of position using simple tools.

[0025] 3. Enhances the convenience of stacking and storing pallets. The open design facilitates the alignment and stacking of multiple pads, reducing storage space usage.

[0026] When stacking, ropes or chains can be threaded through the openings to secure the stacks, preventing slippage and improving transportation and storage safety.

[0027] 4. Improve construction safety and operability The clearly defined opening structure avoids safety risks caused by the slippage or overturning of the pad during loading and unloading.

[0028] Operators can quickly identify the loading and unloading direction of the pads, reducing the possibility of misoperation.

[0029] In a preferred but non-limiting embodiment of this utility model, the pad structure is designed as follows: the pad 1 is made of high-strength metal material.

[0030] In a preferred but non-limiting embodiment of this utility model, the high-strength metal material is Q345B low-alloy high-strength structural steel.

[0031] In a preferred but non-limiting embodiment of this utility model, the pad 1 has two or more standard thickness specifications. The basic specifications of the standard thickness specifications include 50mm and 80mm, and other thickness specifications can be added according to actual needs.

[0032] In a preferred but non-limiting embodiment of this utility model, the surface of the pad 1 is flat and the edges of the pad 1 are rounded to avoid scratching the counterweight or the operator during use.

[0033] Adjustment method for pads: When using, select a single pad of the corresponding thickness according to the difference in the top protrusion height of different models of counterweights, or stack multiple pads of different thicknesses to ensure that the tops of different models of counterweights are flush after placement, thus meeting the installation and adaptation requirements of the same crane.

[0034] In a preferred but non-limiting embodiment of this utility model, to meet the installation adaptation requirements of the same crane, a single pad 1 of corresponding thickness is selected based on the difference in the height of the top protrusion of different models of counterweights, or multiple pads 1 of different thicknesses are stacked to ensure that the tops of different models of counterweights remain flush after placement. Maintaining flushness allows for a larger force-bearing area of ​​the counterweights.

[0035] In a preferred but non-limiting embodiment of this utility model, a chain is also provided for the pad used to place different types of counterweights together.

[0036] In a preferred but non-limiting embodiment of this utility model, the chain is used to lock the counterweight and pad together in the crane counterweight installation area after the counterweight and pad are placed.

[0037] For the corresponding fixed protective structure: after the counterweight and pad are placed together, a high-strength chain is used to wrap around the counterweight and pad as a whole to lock it in the counterweight installation area of ​​the crane, preventing relative slippage between the counterweight and pad during hoisting and ensuring construction safety.

[0038] This pad is available in different thicknesses, such as 80mm and 50mm, to suit different counterweights. When using it, one or more pads can be placed according to the different protruding heights of the counterweights. After the counterweights are placed, the entire counterweight is locked with a chain to prevent slippage.

[0039] In a preferred but non-limiting embodiment of this utility model, the bottom rear end of the pad 1 has an opening 2.

[0040] In a preferred but non-limiting embodiment of this utility model, the bottom front end of the pad 1 has two openings 2.

[0041] The advantages of having an opening at the rear bottom of the pad and two openings at the front bottom of the pad for loading and unloading are as follows: This specific opening layout not only facilitates loading and unloading but also optimizes the stability, efficiency, and safety of the loading and unloading process. Its advantages are specifically reflected in the following aspects: 1. Clearly define the loading and unloading direction to achieve rapid alignment. Advantages: The asymmetrical opening design provides operators with clear visual guidance, allowing them to immediately distinguish the front and rear of the pallet. This avoids the need for repeated trial and error or adjustments in a chaotic work site environment, enabling forklift drivers to accurately insert the forks in one operation, greatly improving operational efficiency.

[0042] 2. Optimize stress distribution and improve handling stability. Advantages: When the pallet is moved by a forklift, its main weight is borne by the two points where the forks are inserted.

[0043] Dual front openings: Provide precise, independent insertion channels for the two forks, ensuring a fixed fork spacing that matches the standard fork width of the forklift. This creates two stable front support points.

[0044] Rear single opening: As an adjustable rear support point, it allows the two forks to be brought together or slightly adjusted at the rear, supporting each other within a wider opening. This "two points in front, one point behind" support method forms a stable triangular support surface, effectively preventing the pallet from swaying and tilting during handling.

[0045] 3. Perfectly compatible with standard forklifts, ensuring smoother operation. Advantages: In a standard forklift, the two forks are fixed parallel to each other. The spacing between the double openings at the front matches the fork spacing, allowing the forks to slide in easily. The width of the single opening at the rear is designed to accommodate the ends of two forks held together. This design makes the entire insertion and removal process very smooth, eliminating the need for forced fork adjustments and reducing wear on the equipment and pallet.

[0046] 4. Effectively prevents eccentric loading and overturning. Advantages: If there are only two openings at the front and back, and the alignment is inaccurate, it can easily lead to an unbalanced state where one fork bears the weight while the other is suspended, causing uneven loading and a risk of tipping over. The "one fork at the front, two at the back" design, however, ensures that even if the forklift approaches at a slight angle, the forks are first guided into the wider opening at the rear, then naturally correct themselves and fully insert into the two openings at the front. This process is an automatic alignment process, greatly reducing the risk of uneven loading and improving handling safety.

[0047] 5. Considering the flexibility of different loading and unloading methods Advantages: In some cases, lifting slings or ropes may be required for loading and unloading.

[0048] A single opening at the rear end can serve as an ideal point for threading lifting slings.

[0049] The double opening at the front provides two threading points, facilitating balanced lifting.

[0050] This design provides a variety of loading and unloading options on site, making it highly adaptable.

[0051] In summary, the bottom of the pad of this utility model adopts an asymmetrical layout with two openings at the front end and one opening at the rear end. This design has the following significant advantages: Clear guidance and rapid alignment: The asymmetrical structure provides clear visual guidance for forklift operation, enabling rapid and accurate alignment and improving loading and unloading efficiency.

[0052] Stable handling and anti-tipping: The double opening at the front provides two fixed front support points, and the single opening at the rear serves as an adjustable rear support point, together forming a stable triangular support surface, effectively preventing the pad from swaying and tipping over during handling.

[0053] Automatic alignment for safe operation: This design enables the forks to automatically align during insertion, ensuring that the two forks are evenly stressed, greatly improving the safety and smoothness of operation.

[0054] Flexible adaptability: It perfectly matches the fork size of standard forklifts and is also easy to use with lifting slings and other tools for auxiliary loading and unloading when needed.

[0055] An example of this utility model is as follows: (a) Preparation of pad Q345B low-alloy high-strength structural steel was selected as the raw material for the pad. This material has high strength, good toughness and fatigue resistance, and can meet the requirements of counterweight pressure.

[0056] The pads are processed according to preset specifications, with the 50mm thick pads measuring 1000mm x 800mm and the 80mm thick pads also measuring 1000mm x 800mm. During processing, CNC cutting equipment is used to ensure dimensional accuracy, with errors controlled within ±1mm. The surface is treated with sandblasting to remove rust, followed by application of anti-rust paint to extend service life.

[0057] (II) Actual assembly and use Taking a wind power project as an example, the project uses both model A and model B crawler cranes. The bottom protrusion height of the counterweight adapted to model A crane is 30mm, and the bottom protrusion height of the counterweight adapted to model B crane is 60mm. Now, it is necessary to use model B counterweight for model A crane.

[0058] First, clear away debris from the counterweight installation area of ​​the Type A crane to ensure that the installation surface is flat.

[0059] Based on the compatibility differences between the B-type counterweight and the A-type crane, select a 50mm thick pad and place it in the designated location in the installation area.

[0060] Slowly hoist the Type B counterweight onto the pad, adjust the counterweight position so that the counterweight installation interface is aligned with the corresponding interface of the crane. At this point, the top of the counterweight is flush with the crane, which meets the installation requirements.

[0061] Take a high-strength chain, M20 specification, and wrap it around the counterweight and pad. Connect both ends of the chain to the fixing rings in the counterweight installation area of ​​the crane using shackles. Then tighten the shackles with a wrench to ensure that the chain is taut and that the counterweight and pad are not loose.

[0062] After installation, a trial run inspection is conducted. Start the crane and slowly rotate the counterweight arm to observe whether there is any slippage or abnormal noise between the counterweight and the pad. Once it is confirmed that there are no abnormalities, the formal hoisting operation can begin.

[0063] If the counterweight protrudes too much at the bottom, such as 90mm, a 50mm thick pad and an 80mm thick pad can be stacked together. When stacking, ensure that the two pads are aligned and not misaligned, and then install and lock the counterweight according to the steps above.

[0064] The beneficial effects of this utility model are as follows: Cost reduction: There is no need to transport special counterweights separately for different crane models. Existing counterweights can be adapted by using pads, reducing the number of times and the amount of counterweights to be transported, significantly reducing the project's mechanical transportation costs. It is estimated that related transportation costs can be reduced by 30%-50%.

[0065] Improve efficiency: Solve the problem of counterweight model shortage. When a certain model of counterweight is insufficient, other models of counterweight can be adapted by using pads, avoiding construction stagnation caused by counterweight problems and ensuring that the project progresses as planned.

[0066] Ensuring safety: The high-strength material of the pad can withstand the heavy pressure of the counterweight, and it has strong stability when used in combination. With the chain locking structure, it effectively prevents the counterweight from slipping and reduces the safety risks during the hoisting process.

[0067] The present invention has been described above by way of example. Those skilled in the art should understand that the present disclosure is not limited to the embodiments described above, and various changes, modifications and substitutions can be made without departing from the scope of the present invention.

Claims

1. A pad for placing different types of counterweights together, characterized in that, include: pad; The pad is a cuboid structure. The pad is used to fill the space between two adjacent protrusions on the top of the counterweight to meet the installation and adaptation requirements of the same crane. The bottom end of the pad has an opening for loading and unloading.

2. The pad for placing different types of counterweights together according to claim 1, characterized in that, The pad is made of high-strength metal.

3. The pad for placing different types of counterweights together according to claim 2, characterized in that, The high-strength metal material is Q345B low-alloy high-strength structural steel.

4. The pad for placing different types of counterweights together according to claim 3, characterized in that, The pads are available in two or more standard thickness specifications, with the basic standard thickness specifications including 50mm and 80mm.

5. The pad for placing different types of counterweights together according to claim 4, characterized in that, The surface of the pad is flat, and the edges of the pad are rounded.

6. The pad for placing different types of counterweights together according to claim 5, characterized in that, To meet the installation compatibility requirements of the same crane, a single pad of corresponding thickness is selected based on the difference in the top protrusion height of different models of counterweights, or multiple pads of different thicknesses are stacked to ensure that the tops of different models of counterweights remain flush after placement.

7. The pad for placing different types of counterweights together according to claim 6, characterized in that, Chains are also provided for pads used to place different types of counterweights together.

8. The pad for placing different types of counterweights together according to claim 7, characterized in that, The chain is used to lock the counterweight and pad together in the crane counterweight installation area after the counterweight and pad are placed.

9. The pad for placing different types of counterweights together according to claim 8, characterized in that, There is an opening at the bottom rear end of the pad.

10. The pad for placing different types of counterweights together according to claim 9, characterized in that, There are two openings at the bottom front of the pad.

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