Crankshaft assembly for inline four-cylinder engine and forming method thereof
A molding method and engine technology, applied in the direction of engine components, crankshafts, shafts, etc., can solve problems such as high operation difficulty, long processing time, and difficult tooling design, and achieve the effects of simplifying complexity, reducing difficulty, and reducing production costs
Active Publication Date: 2017-11-03
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
[0004] However, in the traditional crankshaft manufacturing process, in order to meet the design requirements of the dynamic balance of the crankshaft, the crankshaft may need to process deduplication holes on any one or more balance weights, which makes the tooling design and operation of this station difficult. High, long processing time
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0024] In describing the present invention, it is to be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be ...
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A molding method for a crankshaft assembly of an inline four-cylinder engine comprises the following steps: S1, adjusting a center of gravity of the crankshaft having a first balancing block and a second balancing block to coincide with a central axis of the crankshaft; S2, increasing the mass of the first balancing block and the second balancing block to deflect the center of gravity of the crankshaft from the central axis of the crankshaft; and S3, drilling removing weight holes on the first balancing block and the second balancing block respectively to make the center of gravity of the crankshaft assembly to coincide with the central axis of the crankshaft. A crankshaft assembly of an inline four-cylinder engine is also disclosed. The molding method for the crankshaft assembly simplifies the complexity of the operation, enhances the production efficiency, and reduces the production cost.
Description
technical field [0001] The invention relates to the field of automobiles, in particular to a crankshaft assembly for an inline four-cylinder engine and a forming method thereof. Background technique [0002] In recent years, with the development of the automobile industry, the requirements for vehicle comfort have become higher and higher. As the source of automobile power, the engine has stricter requirements on the control of noise and vibration. The dynamic balance design of the engine crankshaft is an important part of it. [0003] The in-line four-cylinder engine is currently the most widely used engine structure type, and the dynamic balance design of the crankshaft is particularly important, and the goal of the dynamic balance design is to minimize the dynamic unbalance of the crankshaft, so that the crankshaft brings Engine yaw and vibration are minimized. [0004] However, in the traditional crankshaft manufacturing process, in order to meet the design requirement...
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IPC IPC(8): B23B35/00F16C3/10
CPCB23B35/00B23B2215/20F16C3/10F16C3/20F16C3/08F16C2360/22
Inventor 宋溦蔡继春卢艳坤李向春李德全
Owner BEIQI FOTON MOTOR CO LTD