Crane tonnage measuring and calculating method based on cargo weight and crossing distance

Abstract

The invention discloses a crane tonnage measuring and calculating method based on cargo weight and crossing distance, and the method comprises the following steps: the most suitable crane tonnage is determined according to the cargo weight and the crossing distance, the crane tonnage (X) = (cargo weight * crossing distance) / (tonnage coefficient * 3), the tonnage coefficient is 0.75, and the sum of the cargo weight and the crossing distance is 100; according to the coefficient, the hoisting capacity, the safety coefficient and the possible operation difficulty of the crane are considered, the relatively accurate crane tonnage requirement can be obtained by multiplying the coefficient, and the crane tonnage measuring and calculating method has the advantages that the simple and practical crane tonnage measuring and calculating method is provided; according to the method, the required crane tonnage can be quickly determined according to the cargo weight and the crossing distance, and various factors including the cargo weight, the crossing distance, the safety coefficient and the operation difficulty are considered, so that the safety and the efficiency of hoisting operation are ensured, the condition of vehicle type inconformity caused by low-level common sense problems is avoided, and the hoisting efficiency is improved. And better service experience is provided for customers.

Description

Technical Field

[0001] The present invention belongs to the technical field of cranes, and particularly relates to a method for calculating the crane tonnage based on the weight of goods and the spanning distance. Background Art

[0002] In the crane operation scenario, selecting the appropriate crane tonnage is crucial for ensuring the safety and efficiency of the lifting operation. If the selected crane tonnage is insufficient, it may lead to lifting failure or damage to the goods; if the selected crane tonnage is too large, it will cause waste of resources and potential safety risks. Therefore, how to determine the most suitable crane tonnage based on the weight of goods and the spanning distance is an important issue. Summary of the Invention

[0003] To achieve the above object, the technical solution of the present invention is as follows: A method for calculating the crane tonnage based on the weight of goods and the spanning distance, the method comprising the following steps: Step S1, measuring the spanning distance of the goods; Step S2, calculating the weight of the goods according to the spanning distance of the goods and the design parameters of the crane; Step S3, determining the tonnage of the crane according to the calculated weight of the goods and the load-bearing capacity of the crane.

[0004] As an improvement of the present invention, the spanning distance in step S1 is determined by measuring the horizontal distance of the goods on the crane hook.

[0005] As an improvement of the present invention, in step S2, the weight of the goods is calculated by mechanical principles and the design parameters of the crane.

[0006] As an improvement of the present invention, the most suitable crane tonnage is determined according to the weight of the goods and the spanning distance: X = (W * d) / (3 * C) (1) Where in formula (1), X is the crane tonnage, W is the weight of the goods, d is the spanning distance, C is the tonnage coefficient, the value of C is 0.75, substituting the actual weight of the goods and the spanning distance into the formula to obtain the required crane tonnage, and rounding up the calculated crane tonnage as the final crane tonnage requirement.

[0007] As an improvement of the present invention, the method further includes considering the unbalance coefficient K to adapt to the situation where the operating speeds of crane drivers are asynchronous, and the formula is adjusted to: X = K * (W * d) / (3 * C) (2) Where in formula (2), K is the unbalance coefficient, X is the crane tonnage, W is the weight of the goods, d is the spanning distance, C is the tonnage coefficient, and the value of C is 0.75.

[0008] As an improvement of the present invention, the value of the imbalance coefficient K is determined according to the lifting manual or actual experience, and the value of K is not less than 1.1.

[0009] This coefficient takes into account the lifting capacity of the crane, the safety factor, and the possible operation difficulty. By multiplying this coefficient, we can obtain a relatively accurate crane tonnage requirement, thus avoiding the situation where the vehicle type does not meet the requirements due to basic common sense problems.

[0010] As an improvement of the present invention, the actual cargo weight and the spanning distance are substituted into the formula to obtain the required crane tonnage.

[0011] As an improvement of the present invention, the calculated crane tonnage is rounded up to obtain the final crane tonnage requirement.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The advantage of the present invention is to provide a simple and practical method for calculating the crane tonnage, which can quickly determine the required crane tonnage according to the cargo weight and the spanning distance. This method takes into account various factors, including the cargo weight, the spanning distance, the safety factor, and the operation difficulty, thus ensuring the safety and efficiency of the lifting operation. By this method, the situation where the vehicle type does not meet the requirements due to basic common sense problems can be avoided, providing a better service experience for customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the flowchart of the method for calculating the crane tonnage in this embodiment; Figure 2 is the relationship diagram between the crane boom distance and the height in this embodiment; Figure 3 is an example diagram of the spanning distance and the cargo weight that need to be measured in the actual scenario of the crane. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following further clarifies the present invention in conjunction with the drawings and the specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0015] Example 1: As Figure 1 shown, a method for calculating the crane tonnage based on the cargo weight and the spanning distance, the method includes the following steps: Step S1, measure the spanning distance of the cargo; Step S2, calculate the weight of the cargo according to the spanning distance of the cargo and the design parameters of the crane; Step S3, determine the tonnage of the crane according to the calculated cargo weight and the load-bearing capacity of the crane.

[0016] Further, the spanning distance in step S1 is determined by measuring the horizontal distance of the cargo on the crane hook.

[0017] Further, in step S2, the weight of the goods is calculated based on mechanical principles and the design parameters of the crane.

[0018] Further, the most suitable crane tonnage is determined according to the weight of the goods and the spanning distance: X = (W * d) / (3 * C) (1) In formula (1), X is the crane tonnage, W is the weight of the goods, d is the spanning distance, C is the tonnage coefficient, and the value of C is 0.75. Substitute the actual weight of the goods and the spanning distance into the formula to obtain the required crane tonnage, and round up the calculated crane tonnage to obtain the final crane tonnage requirement.

[0019] Further, the method also includes considering the unbalance coefficient K to adapt to the situation where the operating speeds of crane drivers are not synchronized, and the formula is adjusted to: X = K * (W * d) / (3 * C) (2) In formula (2), K is the unbalance coefficient, X is the crane tonnage, W is the weight of the goods, d is the spanning distance, and C is the tonnage coefficient, and the value of C is 0.75.

[0020] Further, the value of the unbalance coefficient K is determined according to the lifting manual or actual experience, and the value of K is not less than 1.1.

[0021] Embodiment 2: A method for calculating the crane tonnage based on the weight of the goods and the spanning distance. The method includes the following steps: Determine the most suitable crane tonnage according to the weight of the goods and the spanning distance. The crane tonnage (X) = (weight of the goods × spanning distance) ÷ (tonnage coefficient × 3), where the tonnage coefficient is 0.75. This coefficient takes into account the lifting capacity, safety factor, and possible operating difficulty of the crane. By multiplying this coefficient, we can obtain a relatively accurate crane tonnage requirement, thereby avoiding the situation where the vehicle type does not meet the requirements due to basic common sense problems. Substitute the actual weight of the goods and the spanning distance into the formula to obtain the required crane tonnage, and round up the calculated crane tonnage to obtain the final crane tonnage requirement. The advantage of this embodiment is to provide a simple and practical method for calculating the crane tonnage, which can quickly determine the required crane tonnage according to the weight of the goods and the spanning distance. This method takes into account various factors, including the weight of the goods, the spanning distance, the safety factor, and the operating difficulty, thereby ensuring the safety and efficiency of the lifting operation. By this method, the situation where the vehicle type does not meet the requirements due to basic common sense problems can be avoided, providing a better service experience for customers. Figure 2 It is a diagram showing the relationship between the distance and height of the crane boom. The highest lifting height of the object can be seen through the distance and angle.

[0022] Figure 3For example, in the actual scenario of a crane, the spanning distance and the weight of the goods need to be measured. Taking a specific example, assume that it is necessary to lift a 10-ton goods, and the horizontal spanning distance is 8 meters. According to the above formula, the required crane tonnage can be calculated: X = (10 tons × 8 meters) ÷ (0.75 × 3) = 26.67 tons. Since the crane tonnage must be an integer, at least a 27-ton truck crane is required.

[0023] It should be noted that the above content only illustrates the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. A method for calculating crane tonnage based on cargo weight and span distance, characterized in that: The method comprises the following steps: Step S1, measuring the span distance of the goods; Step S2, calculating the weight of the cargo according to the span distance of the cargo and the design parameters of the crane; Step S3, determining the tonnage of the crane according to the calculated cargo weight and the carrying capacity of the crane.

2. The method for calculating crane tonnage based on cargo weight and span distance according to claim 1, characterized in that: The span distance in step S1 is determined by measuring the horizontal distance of the cargo on the crane hook.

3. The method for calculating crane tonnage based on cargo weight and span distance according to claim 1, characterized in that: In step S2, the cargo weight is calculated by using mechanical principles and design parameters of the crane.

4. The method for calculating crane tonnage based on cargo weight and span distance according to claim 1, characterized in that: Determine the most suitable crane tonnage based on cargo weight and span distance: X=(W * d) / (3*C)(1) In formula (1), X is the crane tonnage, W is the cargo weight, d is the span distance, and C is the tonnage coefficient. The value of C is 0.

75. Substitute the actual cargo weight and span distance into the formula to obtain the required crane tonnage. The calculated crane tonnage is rounded up as the final crane tonnage requirement.

5. A crane tonnage calculation method based on cargo weight and span distance according to claim 4, characterized in that: The method also includes considering the unbalanced coefficient K to adapt to the situation where the crane driver's operating speed is not synchronized, and the formula is adjusted to: X=K*(W * d) / (3*C)(2) In formula (2), K is the imbalance coefficient, X is the crane tonnage, W is the cargo weight, d is the span distance, and C is the tonnage coefficient, and the value of C is 0.

75.

6. A method for calculating crane tonnage based on cargo weight and span distance according to claim 5, characterized in that: The value of the imbalance coefficient K is determined according to the lifting manual or actual experience, and the K value is not less than 1.1.

Images