Method for size compensation of a platform system, platform system and working machine

Abstract

The application belongs to the technical field of working machines, and particularly relates to a size compensation method of a platform system, the platform system and a working machine. The size compensation method of the platform system comprises: determining a vertical size deviation between the engine cabin and the rotating platform main frame when assembled and the design size of the platform system; adjusting the thickness of the compensation mechanism according to the size deviation; and installing the compensation mechanism between the engine cabin and the rotating platform main frame to compensate for the size deviation. The size compensation method of the platform system can compensate for the size of the platform system by adjusting the compensation mechanism between the engine cabin and the rotating platform main frame, so that the assembled platform system meets the design requirements, and the rotating platform main frame does not need to be machined again, which is convenient and easy to implement.

Description

Technical Field

[0001] This invention belongs to the field of work machinery technology, specifically relating to a method for size compensation of a platform system, the platform system, and work machinery. Background Technology

[0002] Heavy-duty construction machinery is widely used in mining, disaster relief, and urban construction, and its working environment is particularly harsh. Especially for ultra-large excavators used in mining, the entire machine will withstand enormous impacts during operation.

[0003] As a key load-bearing component of heavy-duty machinery, the platform system, especially for ultra-large tonnage heavy-duty machinery, has even stricter requirements for structural strength and assembly with other components. In the platform system of ultra-large machinery, the engine compartment, as an integral module, is placed at the top of the turntable main frame structure and contacts the upper cover plate of the turntable main frame. The contact surface between the engine compartment module and the turntable main frame needs to be machined to ensure its dimensional and positional tolerances. However, the turntable main frame has large structural dimensions, and the deformation after blanking and welding is significant, making it difficult to control dimensional deviations. Excessive machining of the turntable main frame will reduce the assembly dimensions between the turntable main frame and the engine compartment, affecting assembly strength and potentially causing interference between the engine compartment and other structures of the platform system. Summary of the Invention

[0004] The purpose of this invention is to provide a method for dimensional compensation of a platform system, a platform system, and a working machine, in order to solve the technical problem in the prior art where the dimensional deviation between the turntable main frame and the engine compartment is large, resulting in a large amount of cutting of the turntable main frame.

[0005] To achieve the above objectives, the present invention provides a method for dimensional compensation of a platform system. The platform system includes an engine compartment, a compensation mechanism, and a turntable main frame stacked sequentially from top to bottom. The dimensional compensation method includes:

[0006] Determine the vertical dimensional deviations between the engine nacelle and turntable main frame assembly and the design dimensions of the platform system;

[0007] The thickness of the compensation mechanism is adjusted according to dimensional deviations;

[0008] A compensation mechanism is installed between the engine compartment and the turntable main frame to compensate for dimensional deviations.

[0009] In some implementations, the steps of determining the vertical dimensional deviations during the assembly of the engine nacelle and turntable main frame include: determining the compensation height value and compensation height tolerance value of the platform system; and determining the dimensional deviations based on the compensation height value and compensation height tolerance value.

[0010] In some implementations, the step of determining the compensation height value of the platform system includes: determining the design height of the platform system and setting the design height as a first height value; determining a second height value for the engine nacelle; determining a third height value for the turntable main frame; and determining the compensation height value of the platform system based on the first height value, the second height value, and the third height value.

[0011] In some implementations, the compensation height value can be calculated according to the following formula (a):

[0012] h0 = h1 - h2 - h3 (a)

[0013] Where h0 is the compensation height value; h1 is the first height value; h2 is the second height value; and h3 is the third height value.

[0014] In some implementations, the step of determining the compensated height tolerance value of the platform system includes: determining the design tolerance value of the platform system and defining the design tolerance value as the first height tolerance value; determining the second height tolerance value of the engine nacelle; determining the third height tolerance value of the turntable main frame; and determining the compensated height tolerance value based on the first height tolerance value, the second height tolerance value, and the third height tolerance value.

[0015] In some implementations, the compensation height tolerance value can be calculated according to the following formula (b):

[0016]

[0017] Wherein, ES0 is the upper deviation of the compensated height tolerance value; EI0 is the lower deviation of the compensated height tolerance value; ES1 is the upper deviation of the first height tolerance value; EI1 is the lower deviation of the first height tolerance value; ES2 is the upper deviation of the second height tolerance value; EI2 is the lower deviation of the second height tolerance value; ES3 is the upper deviation of the third height tolerance value; and EI3 is the lower deviation of the third height tolerance value.

[0018] In some embodiments, the compensation mechanism includes a first compensation member and a second compensation member. The step of installing the compensation mechanism between the engine compartment and the turntable main frame to compensate for dimensional deviations includes: welding the side of the first compensation member facing the engine compartment to the bottom surface of the engine compartment; welding the side of the second compensation member facing the turntable main frame to the top surface of the turntable main frame; and locking the side of the first compensation member away from the engine compartment and the side of the second compensation member away from the turntable main frame.

[0019] A second aspect of the present invention provides a platform system comprising an engine nacelle, a compensation mechanism, and a turntable main frame stacked sequentially from top to bottom; wherein the compensation mechanism can be machined to adjust its thickness, and the compensation mechanism is used to compensate for vertical dimensional deviations during the assembly of the turntable main frame and the engine nacelle.

[0020] In some embodiments, there are multiple compensation mechanisms arranged circumferentially along the bottom wall of the engine compartment. Each compensation mechanism includes a first compensation member and a second compensation member stacked vertically. The thickness of the first compensation member and / or the second compensation member is adjustable.

[0021] A third aspect of the present invention provides a working machine, including the platform system described above.

[0022] In the above technical solution, the platform system includes an engine compartment, a compensation mechanism, and a turntable main frame. When assembling the engine compartment and turntable main frame of the platform system, the vertical dimensional deviation during assembly can be determined first. Then, based on the dimensional deviation, the thickness of the compensation mechanism between the engine compartment and the turntable main frame can be adjusted. The adjusted compensation mechanism is then installed between the engine compartment and the turntable main frame to compensate for the dimensional deviation. Using the above dimensional compensation method, targeted compensation can be performed based on the vertical dimensional deviation between the engine compartment and the turntable main frame, preventing large dimensional deformation of the turntable main frame after material cutting and welding, which would necessitate secondary machining of the turntable main frame. This invention reserves compensation dimensions between the engine compartment and the turntable main frame of the platform system for installing the compensation mechanism. After the turntable main frame is machined, the thickness of the compensation mechanism can be adjusted based on the finished dimensions of the turntable main frame to ensure that the assembled dimensions of the turntable main frame and engine compartment meet the design requirements.

[0023] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings:

[0025] Figure 1 A flowchart of a size compensation method for a platform system provided according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a platform system provided according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the compensation dimension structure of the platform system provided according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the turntable main frame provided according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures

[0030] 1 Engine compartment 41 Upper cover

[0031] 2 First compensation component 42 side plate

[0032] 3 Second compensation component 43 base plate

[0033] 4 Turntable Main Frame Detailed Implementation

[0034] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0035] The following description, with reference to the accompanying drawings, describes a method for dimensional compensation of a platform system according to the present invention, a platform system, and a working machine.

[0036] like Figure 1 The diagram shown is a flowchart of a size compensation method for a platform system provided according to an embodiment of the present invention; as shown Figure 2 The diagram shown is a structural schematic of a platform system provided according to an embodiment of the present invention; as shown Figure 3 The diagram shown is a schematic diagram of the compensation size structure of a platform system provided according to an embodiment of the present invention.

[0037] The platform system includes, from top to bottom, the engine compartment 1, the compensation mechanism, and the turntable main frame 4, stacked sequentially. The dimensional compensation methods include:

[0038] S102, determine the vertical dimensional deviation between the engine nacelle 1 and the turntable main frame 4 and the design dimensions of the platform system during assembly;

[0039] S104, adjust the thickness of the compensation mechanism according to the dimensional deviation;

[0040] S106, the compensation mechanism is installed between the engine compartment 1 and the turntable main frame 4 to compensate for dimensional deviations.

[0041] The platform system includes an engine compartment 1 and a turntable main frame 4. The turntable main frame 4 is located within the platform system and supports chassis components such as the engine compartment and turntable. The engine compartment 1 houses engine components and prevents external components from interfering with engine operation. The turntable main frame 4 is relatively large, requiring multiple steps including material preparation, machining, welding, and assembly. After assembly, the vertical dimensions of the turntable main frame 4, when assembled with the engine compartment 1, often fail to meet design requirements. Existing technologies often involve secondary machining of the turntable to ensure the turntable main frame 4 meets dimensional design requirements after assembly with the engine compartment 1. However, secondary machining of the assembled turntable main frame 4 is complex, and large machining operations can easily affect the assembly strength between the turntable main frame 4 and the engine compartment 1.

[0042] The platform system provided in this embodiment of the invention includes an engine compartment 1, a compensation mechanism, and a turntable main frame 4 stacked sequentially from top to bottom. During chassis design, a compensation dimension is reserved between the engine compartment 1 and the turntable main frame 4 to compensate for vertical dimensional deviations during assembly via the compensation mechanism. Specifically, during the assembly of the engine compartment 1 and the turntable main frame 4, the vertical dimensional deviation between the assembled engine compartment 1 and the turntable main frame 4 and the design dimensions of the platform system is first determined. Then, the thickness of the compensation mechanism is adjusted according to the vertical dimensional deviation, and the adjusted compensation mechanism is installed between the engine compartment 1 and the compensation mechanism to compensate for the dimensional deviation, ensuring that the platform system meets the design dimensions.

[0043] Using the above-mentioned platform system size compensation method, when the engine compartment 1 and the turntable main frame 4 are assembled, if there is a vertical deviation between the assembled size and the platform system, the size deviation can be compensated by adjusting the thickness of the compensation mechanism. Size deviation compensation is convenient, installation is simple, no machining processing is required for the turntable main frame 4, and the assembly strength is high.

[0044] In one embodiment, the step of determining the vertical dimensional deviation during the assembly of the engine compartment 1 and the turntable main frame 4 includes: determining the compensation height value and compensation height tolerance value of the platform system; and determining the dimensional deviation based on the compensation height value and compensation height tolerance value. By comparing the design dimensions of the platform system during the design phase with the dimensions during the assembly of the engine compartment 1 and the turntable main frame 4, the compensation height and compensation height tolerance value of the platform system can be determined, and thus the dimensional deviation can be obtained. In a specific embodiment, the compensation height value of the platform system is 5mm, the upper deviation in the compensation height tolerance value is +0.01mm, and the lower deviation in the compensation height tolerance value is -0.07mm. Therefore, the dimensional deviation is...

[0045] In one embodiment, the step of determining the compensation height value of the platform system includes: determining the design height of the platform system and defining the design height as a first height value; determining the second height value of the engine nacelle 1; determining the third height value of the turntable main frame 4; and determining the compensation height value of the platform system based on the first height value, the second height value, and the third height value. When it is necessary to determine the compensation height, the second height value of the engine nacelle 1, the third height value of the turntable main frame 4, and the first height value can be compared, and the compensation height value can be determined based on the comparison result.

[0046] In one embodiment, the compensation height value can be calculated according to the following formula (a):

[0047] h0 = h1 - h2 - h3 (a)

[0048] Where h0 is the compensation height value; h1 is the first height value; h2 is the second height value; and h3 is the third height value.

[0049] In one embodiment, the step of determining the compensated height tolerance value of the platform system includes: determining the design tolerance value of the platform system, and defining the design tolerance value as the first height tolerance value; determining the second height tolerance value of the engine nacelle 1; determining the third height tolerance value of the turntable main frame 4; and determining the compensated height tolerance value based on the first height tolerance value, the second height tolerance value, and the third height tolerance value. Figure 2 As shown, the first height value, the second height value, and the third height value can be considered as a closed dimensional chain, where the sum of the compensation height value, the second height value, and the third height value is the first height value. When the compensation height value is used as the closing dimension of the dimensional chain, the first height value is the increasing loop of the dimensional chain, and the second and third height values ​​are the decreasing loops. According to the calculation method of the dimensional chain, in the closed dimensional chain, the upper and lower deviations of the closing loop can be determined based on the upper and lower deviations of the increasing loop, the upper deviation of the decreasing loop, and the lower deviation of the decreasing loop. Therefore, based on the known dimensional tolerances of the increasing and decreasing loops, the tolerance value of the compensation height can be determined, and the thickness of the compensation mechanism can be adjusted accordingly.

[0050] In one embodiment, the compensation height tolerance value can be calculated according to the following formula (b):

[0051]

[0052] Wherein, ES0 is the upper deviation of the compensated height tolerance value; EI0 is the lower deviation of the compensated height tolerance value; ES1 is the upper deviation of the first height tolerance value; EI1 is the lower deviation of the first height tolerance value; ES2 is the upper deviation of the second height tolerance value; EI2 is the lower deviation of the second height tolerance value; ES3 is the upper deviation of the third height tolerance value; and EI3 is the lower deviation of the third height tolerance value.

[0053] In the calculation of the closed-loop dimensional tolerance, the upper deviation of the closed dimension is the sum of the upper deviations of all increasing loops minus the sum of the lower deviations of all decreasing loops. Therefore, in this embodiment of the invention, the upper deviation of the compensation height is the sum of the upper deviation of the first height tolerance value minus the sum of the lower deviations of the second and third height tolerance values. Similarly, in the calculation of the closed-loop dimensional tolerance, the lower deviation of the closed dimension is the sum of the lower deviations of all increasing loops minus the sum of the upper deviations of all decreasing loops. Therefore, in this embodiment of the invention, the lower deviation of the compensation height is the sum of the lower deviation of the first height tolerance value minus the sum of the upper deviations of the second and third height tolerance values. Based on the above calculations, the compensation height and compensation height tolerance value can be obtained, and the thickness of the compensation mechanism can be adjusted. The compensation mechanism is then installed between the engine compartment 1 and the turntable main frame 4 to ensure that the vertical height of the platform system meets the design requirements.

[0054] In one embodiment, the compensation mechanism includes a first compensation component 2 and a second compensation component 3. The step of installing the compensation mechanism between the engine compartment 1 and the turntable main frame 4 to compensate for dimensional deviations includes: welding the side of the first compensation component 2 facing the engine compartment 1 to the bottom surface of the engine compartment 1; welding the side of the second compensation component 3 facing the turntable main frame 4 to the top surface of the turntable main frame 4; and locking the side of the first compensation component 2 facing away from the engine compartment 1 and the side of the second compensation component 3 facing away from the turntable main frame 4. To facilitate installation, the compensation mechanism includes a first compensation component 2 and a second compensation component 3. The first compensation component 2 is used for welding to the engine compartment 1, and the second compensation component 3 is used for welding to the turntable main frame 4. The thickness of the stacked first compensation component 2 and the second compensation component 3 is the compensation height, and the thickness tolerance after stacking is the compensation height tolerance value. After welding the first compensation component 2 and the second compensation component 3, the first compensation component 2 and the second compensation component 3 are locked together to complete the assembly of the platform system, ensuring that the dimensions of the assembled platform system meet the design requirements of the platform system.

[0055] In the aforementioned dimensional compensation method, the compensation height can be determined based on the first height value of the platform system, the second height value of the engine compartment, and the third height value of the turntable main frame 4. The compensation height tolerance value can be determined based on the first, second, and third height tolerance values. The thickness of the compensation mechanism can be adjusted based on the compensation height value and the compensation height tolerance value. Subsequently, the thickness-adjusted compensation mechanism is installed between the engine compartment 1 and the turntable main frame 4 to compensate for dimensional deviations. Using this dimensional compensation method, the assembled platform system meets the design dimensional requirements without requiring secondary machining of the turntable main frame 4. The thickness adjustment of the compensation mechanism is convenient, the installation structure is simple, and it is easy to implement and promote.

[0056] In one embodiment, a platform system is provided, comprising an engine nacelle 1, a compensation mechanism, and a turntable main frame 4 stacked sequentially from top to bottom; wherein the compensation mechanism can be machined to adjust its thickness, and the compensation mechanism is used to compensate for vertical dimensional deviations during the assembly of the turntable main frame 4 and the engine nacelle 1.

[0057] Using the above-mentioned platform system, when the engine compartment 1 and the turntable main frame 4 are assembled, if there is a vertical deviation between the assembled dimensions and the platform system, the dimensional deviation can be compensated by adjusting the thickness of the compensation mechanism. The dimensional deviation compensation is convenient, the installation is simple, no machining processing is required for the turntable main frame 4, the assembly strength is high, and it is easy to implement.

[0058] In one embodiment, there are multiple compensation mechanisms arranged circumferentially along the bottom wall of the engine compartment 1. Each compensation mechanism includes a first compensation member 2 and a second compensation member 3 stacked vertically. The thickness of the first compensation member 2 and / or the second compensation member 3 is adjustable.

[0059] Multiple compensation mechanisms arranged circumferentially along the bottom wall of the engine compartment 1 provide more stable support for the engine compartment 1, ensuring assembly strength. To facilitate the installation of the first compensation component 2 and the second compensation component 3 between the engine compartment 1 and the turntable main frame 4, the compensation mechanism includes a first compensation component 2 and a second compensation component 3. One side of the first compensation component 2 connects to the engine compartment, and the other side connects to the second compensation component 3. One side of the second compensation component 3 connects to the turntable main frame 4, and the other side connects to the first compensation component 2. When installing the compensation mechanism, the first compensation component 2 and the second compensation component 3 can be installed on the engine compartment 1 and the turntable main frame 4 respectively, and then locked together. This installation process is simple and easy to implement. Furthermore, the thickness of the first compensation component 2 and / or the second compensation component 3 can be selectively adjusted according to the ease of processing and assembly, thereby adjusting the overall thickness of the compensation mechanism.

[0060] In one embodiment, both the first compensation member 2 and the second compensation member 3 are plate-like structures, and the two opposing sides of the first compensation member 2 and the second compensation member 3 are planar. Setting both the first compensation member 2 and the second compensation member 3 as plate-like structures makes it easier for operators to adjust their thickness. The planar structures of the opposing sides of the first compensation member 2 and the second compensation member 3 ensure that the first compensation member 2 makes full contact with the engine compartment 1, and the second compensation member 3 makes full contact with the turntable main frame 4, thereby enhancing the overall assembly strength of the platform system.

[0061] In one embodiment, both the first compensation member 2 and the second compensation member 3 are made of steel. Steel is easy to machine, has low cost, and high rigidity and strength, which can stably support the engine compartment 1 and also meet the structural strength requirements of the platform system.

[0062] In some embodiments, the first compensating member 2 is welded to the engine compartment 1 on the side facing the engine compartment 1, and the second compensating member 3 is welded to the turntable main frame 4 on the side facing the turntable main frame. This welded connection ensures that the first compensating member 2 cannot move from the engine compartment 1, and the second compensating member 3 cannot move from the turntable main frame 4, thus guaranteeing the strength and dimensional accuracy of the assembled platform system.

[0063] In one embodiment, the first compensation member 2 and the second compensation member 3 are detachably connected. After welding the first compensation member 2 and the second compensation member 3, the engine compartment 1 can be placed on the turntable main frame 4, and the first compensation member 2 and the second compensation member 3 can be fitted together. Subsequently, the first compensation member 2 and the second compensation member 3 are locked. Using the above-described assembly structure and method facilitates the installation of the platform system, and the locking of the first compensation member 2 and the second compensation member 3 does not affect the dimensions of the chassis after assembly. Furthermore, when repairing the chassis structure such as the turntable main frame 4, the locking between the first compensation member 2 and the second compensation member 3 can be released, allowing the turntable main frame 4 to separate from the engine compartment 1.

[0064] In one embodiment, such as Figure 4 The diagram shown is a structural schematic of the turntable main frame 4 provided according to an embodiment of the present invention. The turntable main frame 4 is a box structure formed by an upper cover plate 41, a bottom plate 43, and multiple side plates 42. The second compensation components 3 in the multiple compensation mechanisms are all installed on the upper cover plate 41. The box structure of the turntable main frame 4 is relatively lightweight and stable, and can support the operation of components such as the engine compartment 1 and the turntable. The fact that the second compensation components 3 in the multiple compensation mechanisms are all installed on the upper cover plate 41 enables more accurate compensation for deviation dimensions.

[0065] In one embodiment, the upper cover plate 41 is further provided with a plurality of connecting portions extending outward along the width direction of the turntable main frame 4. The connecting portions are used to connect with the second compensation member 3. The connection portions facilitate welding of the second compensation member 3 to the upper cover plate 41 and prevent interference between the second compensation member 3 and the internal structure of the turntable main frame 4.

[0066] In one embodiment, multiple connecting parts are symmetrically distributed on both sides of the upper cover plate 41 along the width direction of the upper cover plate 41. The symmetrical distribution of multiple connecting parts along the width direction of the upper cover plate 41 makes the support points of the engine compartment 1 evenly distributed, which is beneficial to achieving more stable support for the engine compartment 1.

[0067] In one embodiment, a working machine is provided, including the platform system described above.

[0068] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for size compensation in a platform system, characterized in that, The platform system includes an engine compartment (1), a compensation mechanism, and a turntable main frame (4) stacked from top to bottom. The compensation mechanism includes a first compensation component (2) and a second compensation component (3). The dimensional compensation method includes: Determine the vertical dimensional deviation between the engine compartment (1) and the turntable main frame (4) and the design dimensions of the platform system during assembly; The thickness of the compensation mechanism is adjusted according to the dimensional deviation; The side of the first compensation member (2) facing the engine compartment (1) is welded to the bottom surface of the engine compartment (1); Weld the side of the second compensation member (3) facing the turntable main frame (4) to the top surface of the turntable main frame (4); Lock the side of the first compensation member (2) away from the engine compartment (1) and the side of the second compensation member (3) away from the turntable main frame (4).

2. The size compensation method for the platform system according to claim 1, characterized in that, The steps for determining the vertical dimensional deviations during the assembly of the engine compartment (1) and the turntable main frame (4) include: Determine the compensation height value and compensation height tolerance value of the platform system; The dimensional deviation is determined based on the compensation height value and the compensation height tolerance value.

3. The size compensation method for the platform system according to claim 2, characterized in that, The steps for determining the compensation height value of the platform system include: Determine the design height of the platform system, and set the design height as a first height value; Determine the second height value of the engine nacelle (1); Determine the third height value of the turntable main frame (4); The compensation height value of the platform system is determined based on the first height value, the second height value, and the third height value.

4. The size compensation method for the platform system according to claim 3, characterized in that, The compensation height value can be calculated according to the following formula (a): (a) in, The compensation height value; The first height value; This is the second height value; This is the third height value.

5. The size compensation method for the platform system according to claim 2, characterized in that, The steps for determining the compensation height tolerance value of the platform system include: Determine the design tolerance value of the platform system, and set the design tolerance value as the first height tolerance value; Determine the second height tolerance value of the engine nacelle (1); Determine the third height tolerance value of the turntable main frame (4); The compensation height tolerance value is determined based on the first height tolerance value, the second height tolerance value, and the third height tolerance value.

6. The size compensation method for the platform system according to claim 3, characterized in that, The compensation height tolerance value can be calculated according to the following formula (b): (b) in, This is the upper deviation of the compensation height tolerance value; This is the lower deviation of the compensation height tolerance value; This represents the upper deviation from the first height tolerance value; This is the lower deviation of the first height tolerance value; This is the upper deviation of the second height tolerance value; This is the lower deviation of the second height tolerance value; This is the upper deviation of the third height tolerance value; This is the lower deviation of the third height tolerance value.

7. A platform system, characterized in that, The platform system is used to perform the size compensation method of the platform system according to any one of claims 1 to 6, the platform system comprising an engine nacelle (1), a compensation mechanism and a turntable main frame (4) stacked from top to bottom. The compensation mechanism can be processed to adjust the thickness and is used to compensate for vertical dimensional deviations when the turntable main frame (4) and the engine compartment (1) are assembled.

8. The platform system according to claim 7, characterized in that, The number of compensation mechanisms is multiple and they are arranged circumferentially along the bottom wall of the engine compartment (1). Each compensation mechanism includes a first compensation member (2) and a second compensation member (3) stacked vertically. The thickness of the first compensation member (2) and / or the second compensation member (3) is adjustable.

9. A type of operating machinery, characterized in that, Includes the platform system according to claim 7 or claim 8.

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