Spoke hub shell structure forged in modular assembly mode

Abstract

The utility model discloses a spoke hub machine shell structure forged in a modular assembly mode. The spoke hub machine shell structure aims at solving the problems that a traditional machine shell is large in manufacturing difficulty, serious in material waste, low in machining precision, high in maintenance cost and the like. The structure comprises three independent modules, namely a forged middle case, a left lifting lug and a right lifting lug, which are assembled in an interference fit, bolt connection or welding manner. Through split forging and modular design, the manufacturing cost is reduced, the material utilization rate and the machining precision are improved, the maintenance cost is reduced, and the strength and the rigidity of the machine shell are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field, concretely is a kind of spoke hub machine shell structure of modular assembly type forging. BACKGROUND

[0002] When the conventional integral spoke hub machine shell adopts forging process, because spoke hole left and right lifting lugs are protruding, it leads to extremely complex forging process, and the thickness of the forging reserved blank in the middle position of left and right lifting lugs is also very thick, which leads to the increase of the cost of subsequent machining. The total manufacturing cost of the machine shell is greatly increased. To solve this problem, some enterprises use casting process, but to ensure the overall strength of the machine shell, the thickness of the left and right spoke hole lifting lugs and the middle machine shell position needs to be thickened, which will lead to the increase of the weight of the machine shell and cannot meet the customer's lightweight requirements.

[0003] Therefore, the present application provides a spoke hub machine shell structure of modular assembly type forging to solve the technical problems existing in the prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a spoke hub machine shell structure of modular assembly type forging, which adopts split forging and modular assembly, has the advantages of low manufacturing difficulty, high material utilization rate, high machining precision and low maintenance cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A spoke hub machine shell structure of modular assembly type forging, comprising:

[0007] A spoke hub machine shell, a spoke hole left lifting lug and a spoke hole right lifting lug;

[0008] The spoke hub machine shell, the spoke hole left lifting lug and the spoke hole right lifting lug are independently forged, the spoke hole left lifting lug and the spoke hole right lifting lug are installed on the left and right sides of the spoke hub machine shell, and the spoke hole left lifting lug and the spoke hole right lifting lug are used to connect spokes or other support structures.

[0009] As a further improvement of the above technical scheme:

[0010] The inner diameter of the spoke hole left lifting lug and the spoke hole right lifting lug matches the outer diameter of the spoke hub machine shell, and the spoke hole left lifting lug and the spoke hole right lifting lug are connected to the middle machine shell by interference fit, bolt connection or welding.

[0011] The outer surface of the spoke hub machine shell is provided with a reinforcing rib for improving the strength and rigidity of the machine shell.

[0012] A plurality of spoke holes are provided on the spoke hole left lifting lug and the spoke hole right lifting lug for connecting spokes.

[0013] The inner surface of the spoke hub shell is provided with a positioning boss for mounting the internal rotating part.

[0014] Compared with the prior art, the spoke hub shell structure has the advantages that:

[0015] 1. Reducing manufacturing cost: The split forging reduces the manufacturing difficulty of individual parts, smaller forging equipment can be used, and the manufacturing cost is reduced.

[0016] 2. Improving material utilization: The forging process can accurately control the shape and size of the parts, reducing material waste.

[0017] 3. Improving machining accuracy: After split forging, each part can be machined individually to improve machining accuracy.

[0018] 4. Reducing maintenance cost: Once the left spoke hole left lug and the right spoke hole lug are damaged, only the damaged parts need to be replaced, without replacing the entire shell, reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Fig. 2 It is a sectional view of the utility model.

[0021] Fig. 3 It is a structure diagram of the left spoke hole lug / right spoke hole lug of the utility model.

[0022] In the figure: 1, spoke hub shell; 2, left spoke hole lug; 3, right spoke hole lug; 4, spoke hole; 5, reinforcing rib; 6, positioning boss. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] As shown in Figs. 1-3 The spoke hub shell structure of the utility model adopts modular assembly forging, which includes a spoke hub shell 1, a left spoke hole lug 2 and a right spoke hole lug 3.

[0025] The spoke hub shell 1, the spoke hole left lug 2 and the spoke hole right lug 3 are independently forged, the spoke hole left lug 2 and the spoke hole right lug 3 are installed on the left and right sides of the spoke hub shell 1, and the spoke hole left lug 2 and the spoke hole right lug 3 are used for connecting spokes or other support structures.

[0026] The embodiment is further optional:

[0027] The inner diameter of the spoke hole left lug 2 and the spoke hole right lug 3 matches the outer diameter of the spoke hub shell 1, and is connected with the middle shell through interference fit, bolt connection or welding.

[0028] The outer surface of the spoke hub shell 1 is provided with a reinforcing rib 5 for improving the strength and rigidity of the shell.

[0029] A plurality of spoke holes 4 are arranged on the spoke hole left lug 2 and the spoke hole right lug 3 for connecting spokes.

[0030] The inner surface of the spoke hub shell 1 is provided with a positioning boss 6 for installing internal rotating parts.

[0031] Assembly process:

[0032] First, the spoke hub shell 1, the spoke hole left lug 2 and the spoke hole right lug 3 are respectively manufactured by forging process. The forging process can adopt die forging or free forging according to the shape and size of the parts.

[0033] Then, the spoke hub shell 1, the spoke hole left lug 2 and the spoke hole right lug 3 are finished to ensure the dimensional accuracy and surface quality of the parts.

[0034] Finally, the spoke hole left lug 2 and the spoke hole right lug 3 are connected with the spoke hub shell 1 through interference fit, bolt connection or welding. The interference amount of interference fit is selected according to the size and working load of the shell. High-strength bolts are used for bolt connection, and anti-loose devices are arranged. Argon arc welding or laser welding is used for welding.

[0035] After assembly, the entire shell can be machined as a whole to further improve the accuracy of the shell.

[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A modular assembled forged spoke hub shell structure, characterized by, The utility model relates to a spoke hub shell, spoke hole left lug and spoke hole right lug, and the spoke hub shell, spoke hole left lug and spoke hole right lug are forged independently, and the spoke hole left lug and spoke hole right lug are installed on the left and right sides of the spoke hub shell, and the spoke hole left lug and spoke hole right lug are used for connecting spokes or other support structures. The inner diameter of the spoke hole left lug and spoke hole right lug matches the outer diameter of the spoke hub shell, and the spoke hole left lug and spoke hole right lug are connected with the middle shell through interference fit, bolt connection or welding. The outer surface of the spoke hub shell is provided with reinforcing ribs for improving the strength and rigidity of the shell.

2. The modular assembled forged spoke hub shell structure of claim 1, wherein: The spoke hole left lug and spoke hole right lug are provided with a plurality of spoke holes for connecting spokes.

3. The modular assembled forged spoke hub shell structure of claim 1, wherein: The inner surface of the spoke hub shell is provided with a positioning boss for installing internal rotating components.

4. The modular assembled forged spoke hub shell structure of claim 1, wherein: ​ 5. The modular assembled forged spoke hub shell structure of claim 1, wherein: ​

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