Crankshaft structure of single cylinder engine
An engine and crankshaft technology, applied in crankshafts, mechanical equipment, vibration suppression adjustment, etc., can solve the problems of large bending and deformation, poor strength, etc., and achieve the effect of small bending deformation and good strength
Pending Publication Date: 2020-07-17
GUANGXI YUCHAI MASCH CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
[0004] As can be seen from the above, the single-cylinder engine crankshafts of the prior art generally have the defects of poor strength and large bending and deformation.
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[0023] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0024] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0025] Such as figure 1 As shown, a crankshaft structure of a single-cylinder engine according to a preferred embodiment of the present invention includes a crankshaft body 100, and the crankshaft body 100 again includes a pulley installation shaft 101, a gear installation shaft 102, a main journal 103, Crank 105 , connecting rod shaft diameter 104 , crank 105 , main journal 103 and flywheel installation shaft 106 . The p...
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The invention discloses a crankshaft structure of a single cylinder engine. The crankshaft structure of the single cylinder engine comprises a crankshaft body, and the crankshaft body comprises a pulley mounting shaft, a connecting rod shaft diameter, a gear mounting shaft and a flywheel mounting shaft. The pulley mounting shaft is arranged at one end of the crankshaft body; the connecting rod shaft diameter is arranged between two sections of spindle necks of the crankshaft body, and two ends of the connecting rod shaft diameter are connected with cranks; the gear mounting shaft is arranged between the pulley mounting shaft and a section of the spindle necks; the flywheel mounting shaft is arranged at the other end of the crankshaft body; and the diameter ratio of the connecting rod shaftdiameter to the spindle necks is between 0.9 and 0.95, and the ratio of wall thickness of the cranks to the cylinder diameter is between 0.2 and 0.3. The crankshaft structure of the single cylinder engine has the advantages of good strength and small bending deformation.
Description
technical field [0001] The invention relates to the field of engine manufacturing, in particular to a crankshaft structure of a single-cylinder engine. Background technique [0002] The single-cylinder engine crankshaft of the prior art generally reduces the vibration of the shaft system by rationally designing the parameter structure of the single-cylinder crankshaft and by counterweights (flywheels, belt pulleys) at both ends of the crankshaft. [0003] The crankshaft of an existing single-cylinder engine generally bears a relatively low pressure in the engine cylinder, and the fillet of the crankshaft is generally a nitriding process, and the diameter ratio of the crankshaft connecting rod journal to the main journal is generally less than 0.9. The ratio of crank arm thickness to bore diameter is generally less than 0.2. [0004] It can be seen from the above that the prior art single-cylinder engine crankshaft generally has the defects of poor strength and large bending...
Claims
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IPC IPC(8): F16C3/06F16F15/28
CPCF16C3/06F16F15/283
Inventor 黄第云
Owner GUANGXI YUCHAI MASCH CO LTD